EP0307266A1 - Method and apparatus for driving specialised intervention equipment into a borehole with at least one section strongly inclined relative to the vertical - Google Patents

Method and apparatus for driving specialised intervention equipment into a borehole with at least one section strongly inclined relative to the vertical Download PDF

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Publication number
EP0307266A1
EP0307266A1 EP88402074A EP88402074A EP0307266A1 EP 0307266 A1 EP0307266 A1 EP 0307266A1 EP 88402074 A EP88402074 A EP 88402074A EP 88402074 A EP88402074 A EP 88402074A EP 0307266 A1 EP0307266 A1 EP 0307266A1
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EP
European Patent Office
Prior art keywords
equipment
control member
cable
tubular
conduit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88402074A
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German (de)
French (fr)
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EP0307266B1 (en
Inventor
Jacques Lessi
Michel Tholance
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IFP Energies Nouvelles IFPEN
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IFP Energies Nouvelles IFPEN
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/14—Obtaining from a multiple-zone well
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools

Definitions

  • the present invention relates to a method and a device for operating specialized intervention equipment in a wellbore having at least one section which is strongly inclined relative to the vertical, or even horizontal.
  • the object of the present invention is to provide an assembly and an operating method which do not have the drawbacks mentioned above and which in particular make it possible to selectively control a large number of specialized intervention equipment, such as valves, putting in communication with casing of the parts of the ground substantially hydraulically insulated, at least at the level of the well.
  • specialized intervention equipment such as valves
  • the present invention therefore relates to a method for operating specialized equipment for intervention in a wellbore having at least one zone strongly deviated from the vertical, said wellbore comprising at least a first tubular conduit along which are installed at distance said equipment, comprising the following steps: - a control member is introduced into said first tubular conduit, a cable is fixed at one end of said member, characterized in that - said control member is lowered into said tubular conduit by downward hydraulic pumping, - the cable is made to travel in the tubular conduit from the surface, - the control member is raised by pulling on the cable from the surface, - Said specialized equipment is selectively maneuvered, during the passage of the control member directly above said equipment in descent or ascent.
  • said control member On the surface of the ground, said control member is fitted with at least one key bolt, said key bolt being able to cooperate with an operating seat of one of said specialized equipment, of complementary shape associated with said bolt, moving said control member in said first conduit to come into line with selected equipment, - it ensures the engagement of said key bolt with the associated seat of said equipment, the movement of said member which operates said equipment is extended, - once the maneuver has been carried out, it ensures that said key bolt is released from the seat, - the control member is raised to the surface.
  • said first conduit being a tubular control column
  • the specialized equipment being valves for producing fluid of geological formations traversed by the well, - said valves are operated by the control member, - It ensures the flow of the fluid in said control column and the production at the surface of said fluid in a second conduit constituting a production column connected at its lower end with the lower end of said tubular control column.
  • the present invention also applies to a device for operating specialized equipment for intervention in a drilled well having at least one zone strongly deviated from the vertical, said drilled well comprising at least one first tubular conduit along which are installed. remotely said equipment, a control member being introduced into said first tubular conduit and connected to the surface by a cable at one of these ends, characterized in that the device further comprises downward hydraulic pumping means capable of moving said member in said tubular conduit, means for passing the cable through the tubular conduit, means for pulling the cable from the surface and means for selective control of said specialized equipment during the passage of the control member directly above said downhill or ascent equipment.
  • control member comprises on its circumference at least one key bolt capable of cooperating with an operating seat for specialized equipment, of complementary shape associated with said key bolt.
  • the device further comprises means for engaging said key pin with the associated seat of said equipment, means for driving said equipment by said member during engagement, and means for releasing said pin key once the maneuver has been carried out.
  • said first conduit being a tubular control column and the specialized equipment being valves for the production of fluid of geological formations traversed by the well
  • the device further comprises a second conduit constituting a production column connected to its lower end with the lower end of said tubular control column.
  • the device advantageously comprises a pump arranged in the production column.
  • the present invention also relates to a fluid production installation from a geological formation traversed by a drilled well comprising a device according to any one of claims 7 to 9, characterized in that the well is divided into several production zones separated and isolated from each other by packer type sealing means, at least one valve being arranged at a production zone.
  • Figure 1 a well 1 having on its lower part a part strongly inclined to the vertical, ending in a horizontal part.
  • This well has on its internal wall a casing 2 produced in the form of tubular elements. These elements with which the internal wall of the borehole is coated to maintain it, are fixed by cementing joints 6.
  • the well 1, which passes through geological formations for which it is desired to produce fluids, has different production zones 30, 31, 32 33. Each of the production zones 30, 31, 32 communicates with zones inside the casing 2 respectively by orifices 13, 15, 17.
  • the production zones are isolated from each other by annular seals 7, 8 , 9 of the packer type. Thus the fluid found in the laterally isolated formation between two seals is directed into the casing through the orifices 13, 15, 17.
  • a conduit such as a production column 4 is disposed in the casing.
  • the casing is fitted with another conduit constituting a tubular control column 3.
  • packers 6a, 7a, 8a, 9a are held parallel to one another by double packers 6a, 7a, 8a, 9a. These packers also constitute sealing means between the casing 2 and the columns 3 and 4 so that, in the casing, the fluid introduced through the orifices 13, 15, 17 achieves a volume delimited by two sections corresponding to packers at different levels.
  • the packers inside the casing 7a, 8a, 9a are at the same level in the well as the seals 7, 8, 9, the volumes delimited in the casing coinciding with the production zones 30, 31, 32.
  • the production column 4 is connected to the tubular control column 3 by a connecting element 12 such as a tube located at the lower end of the two conduits.
  • This production column comprises, arranged at the required altitude, a circulation pump 19 which sucks the fluid from the formations and discharges it to the ground surface through the mouth 20.
  • the position of the pump 19 in the well may be located substantially below the dynamic level of production training. According to the invention, the direction of circulation of the pump fluid can only be unique and ascending.
  • the production area chosen to be used is placed in communication by the casing orifices with the volume of fluid around the two columns 3 and 4, delimited by two successive packers.
  • This volume of fluid flows into the tubular control column 3 through circulation valves 14, 16, 18, such as valves with sliding sleeves.
  • valves 14, 16, 18 are normally fitted with non-return valves preventing the circulation of fluid from the conduit to the formations, but these valves may very well be eliminated, when, for example, we want to proceed with the fracturing of 'a zone.
  • the lower end of the tubular control column 3 comprises a valve 10, and the lower end of the production column 4, a valve 11 each controllable remotely, such as sliding jacket valves similar to valves 14, 16, 18
  • a valve 11 each controllable remotely, such as sliding jacket valves similar to valves 14, 16, 18
  • the valves 10, 14, 16, 18 are selectively controlled to open and close from the ground surface by a member 21 lowered by hydraulic pumping produced with a pumping station 29 connected to the tubular control column 3 by a pipe 28.
  • the control member 21 is connected, during the descent, to a cable 22 passing through a cable gland 23, so that the descent of the member 21 is carried out according to a technique analogous to that of pumped tools, commonly called TFL technique (from the Anglo-Saxon "Through Flow Line").
  • the cable 22 After passing through the cable gland 23, the cable 22 is taken up by two deflection pulleys which direct it towards a winch 26 controlled by the station 27.
  • the member 21 by its displacement by pumping and by cable, controls the opening or closing of the circulation valves 10, 14, 16, 18, in a rapid manner which does not require large operations, such as for example the moving the pump 19.
  • valve opening and closing control retains all its advantages in the case where the control is carried out on other specialized intervention tools including it is necessary to establish a transition from an active state to a passive state and vice versa.
  • control member 21 The implementation of the control member 21 is carried out as follows: Is introduced through the surface opening of the tubular control column 3, the control member 21 connected at one end to the cable 22. Then a cable gland 23 is placed around the cable 22 at the upper end of the tubular control column 3.
  • control column 3 being connected by the pumping pipe 28 to the station 29, the pumping fluid is injected so as to move the control member 21 to its working position, the cable unwinding at the as the control unit advances.
  • valve 14 is opened and the valves 16, 17, 10 closed. .
  • the fluid in zone 30 flows into the casing 2 through the orifices 13 and fills the volume between the packers 6A and 7A.
  • the opening of the valve 14 by the member 21 allows the introduction of the fluid into the tubular column 4, its descent to the end then the ascent to the surface thanks to the action of the pump 19.
  • the member 21 will close the valve 14 and will open the next valve 16 to produce the next zone 31.
  • the circulation valves 14, 16, 18, 10 or any other apparatus, such as measuring devices, tools or instruments, are operated by the member 21 by prolonged pumping downhill and by pulling on the cable 22 upward .
  • the member 21 having operated its maneuver, in opening or closing it is raised to the surface by actuating the winch 22 which produces an upward traction.
  • the member could also be temporarily placed at the bottom of the first control duct 3 beyond the branch with the production duct 4.
  • the devices can be operated during the descent of the control member 21 to the bottom of the well and / or during its ascent from the bottom of the well.
  • the organ and the device will include the necessary combined key parts.
  • the cable 22 may include electrical conductors suitable for transmitting information or for controlling the member 21, in particular controlling its cooperation with the device to be operated.
  • FIGS. 2, 2a, 3, 4 show the control member 21 cooperating with the valve 16 with a sliding jacket to produce the stopping of the production of the second production zone 31.
  • the control member 21 comprises a body 35 which does not allow production fluid to pass through it when no pulling is carried out on the cable 22.
  • the external sealing of the member 21 with the interior of the column tubular control 3 is formed by a seal 36.
  • the body 35 further comprises a hooking part making a key pin 37, having a transverse groove. These key bolts 37 are positioned in the body 35 at the notches 56 distributed circumferentially around the member. In the embodiment shown in section in FIG. 3, the member 35 is provided with 3 notches in each of which is engaged a pin bolt 37.
  • the valve 16 by itself comprises a body 42 integral with the control column in which slides a tubular jacket 39.
  • This jacket 39 is machined so as to present internally a first seat in the form of a rib 38 of shape associated symmetrical with the key pin groove 37.
  • control member 21 is equipped with a key bolt 37 which cooperates with the first seat 38 for closing the valve.
  • the jacket 39 of the valve 16 has a second seat 40 which associates with the shape of a key bolt for the opening of the valve 16.
  • a series of holes 41 drilled in the jacket 39 allow, depending on the position of the jacket 39, the passage of fluid inside the tubular control column.
  • the bolt key 37 has no action on the seat 40 since the shapes are not complementary, it is therefore necessary to change the surface of the key bolts to install a shape complementary to the seat 40.
  • the jacket 39 is made to slide, relative to the body 42, between two extreme positions.
  • Each extreme position is defined by the introduction of an elastic lug circumferentially around the jacket in a groove made in the body of the valve. These two extreme positions are clearly visible in FIG. 2.
  • the open position coincides with a stop of the jacket 39 at the front of the valve (that is to say at the level of the packer 8a), the position of closure with a stopper at the back.
  • the elastic lug 43 is not not made up entirely circumferentially.
  • Slits 60 are made longitudinally in the axis of the jacket so as to allow easy release of the pins from the bottom of the groove thanks to their elasticity.
  • the series of holes 45 located in the valve body 42 may or may not be opposite the series of holes 41 located in the jacket 39.
  • the seal between the jacket 39 and the valve body 42 is provided by the seals 46.
  • the orifices 45 open into a non-return valve 47 (FIG. 2A) which prevents the injection of the pumping fluid into the producing layers, while allowing the production of fluid from these same layers.
  • connection of the cable 22 to the control member 21 has a weak point in tension, the resistance of which is substantially less than the elastic limit in tension of the cable 21, but clearly greater than the shear stress of a pin 52, so to allow the withdrawal of the cable 22, in the event of jamming of the member 21 and authorize the recovery of the latter.
  • the control member 21 has a nose 48 allowing the possible recovery of the member. It also includes means for circulating fluid through the member when a certain traction threshold is exerted on the cable.
  • These means comprise a shutter 49 cooperating with a seat 50 in the closed position and sliding on guides 51 when the pin 52 immobilizing the shutter 49 has sheared under the action of the predetermined tensile force exerted by the cable 22 on the member 21.
  • the stroke of the shutter in the open position is limited by a stop 53.
  • control member If it is desired to close the valve 16, the control member is first of all fitted on the surface with the key bolts 37 associated with the valve closing seat corresponding to the rib 38. We then descend, by hydraulic pumping, the control member 21 until the key pin 37 engages with the seat 38, then the circulation of pumping fluid is stopped and traction is exerted on the cable 22, so as to move the jacket 39 and therefore close the valve 16.
  • the release between the key bolt 37 and the seat 38 forming the rib takes place, for example, at the end of traction on the cable 22, by the cooperation of a chamfer 54 of the valve 16 with a bevel 55 of the bolt 37
  • the deletion of the bolt 37 in the notch 56 of the body 35 occurs by the bursting of a return spring 57 located under the bolt key.
  • the ascent of the member 21 to the surface of the ground is then carried out by prolonged traction on the cable 22.
  • the member 21 is equipped on the surface with a key bolt whose shape is complementary to that of the seat 40, it is lowered by hydraulic pumping the member until the key bolt and the seat 40 cooperate together, the pumping is extended to advance the jacket until opening valve 16.
  • the ascent of the member to the surface of the ground is carried out in the same manner as previously, by pulling on the cable 22, the biased surfaces of the key bolt and of the sleeve allowing disengagement of said bolt without displacement of the sleeve.
  • the pump 19 is put into operation so that the fluids of the selected formations can penetrate the tubular column, go to the connecting element 12, and go back up through the production column 4, passing through the pump 19, towards the mouth 20.
  • the tubular control column 3 can also be equipped with a pump capable of replacing the pump 19 of the production column 4.
  • the pump 19 may be a centrifugal pump or a rod pump, adapted to cooperate with the production column 4 for its installation and its use.
  • the control member 21 may include articulations, so that it can circulate within small radius of curvature.
  • the member may include sealing elements 36 located on either side of the bolt 37 and include tools such as a threshing slide.
  • paraffin scraping can be carried out, with simultaneous pumping of solvent if necessary, installation and recovery of production tools (plug, non-return valve, safety valve, so-called “gas valve” lift ", instruments, such as jet pumps), washing of the sand deposited at the level of the producing zones, recording of the bottom pressure, injection of treatment product, instrumentation on stuck trains of rods. ..
  • the control member may also include an internal by-pass regulator which allows the passage of fluid through it in the direction from the upper part of the member to the lower part of the member.
  • the regulation makes it possible either to continue to circulate in the first casing during the jamming of the member during the journey, or to distribute the force produced by the pressure over several sealing elements 36.
  • the control member may include an extension making it possible to operate devices, such as the valve 10, beyond the hydraulic connection element 12.
  • the devices ordered may be measuring instruments.
  • the space between the casing 2 and the casing 3, in particular that located above the sealing element 6a, can be used to constitute the return duct in place of the duct 4.

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Powder Metallurgy (AREA)
  • Electric Cable Installation (AREA)

Abstract

The present invention relates to a method for operating specialised intervention equipment (10, 14, 16, 18) in a borehole (1) having at least one zone highly deviated from the vertical, said borehole comprising at least one first tubular conduit (3), along which said equipment is installed at a distance. It involves particularly the following steps: - a control member (21) is introduced into the first tubular conduit (3), - a cable (23) is fastened to one end of said member, - said control member (21) is lowered in said tubular conduit (3) by downward hydraulic pumping, - the travel of the cable in the tubular conduit is ensured from the surface, - the control member (21) is raised by pulling on the cable (21) from the surface, - said specialised equipment (10, 14, 16, 18) is operated selectively when the control member passes in line with said equipment while it is being lowered or raised. <IMAGE>

Description

La présente invention concerne un procédé et un dispositif pour manoeuvrer des équipements spécialisés d'intervention dans un puits foré ayant au moins une section fortement inclinée par rapport à la verticale, voire horizontale.The present invention relates to a method and a device for operating specialized intervention equipment in a wellbore having at least one section which is strongly inclined relative to the vertical, or even horizontal.

Il est connu de manoeuvrer des équipements spécialisés tel que notamment des vannes situés dans un puits en laissant descendre par gravité des organes de commande qui au niveau des dispositifs, déclenchent le fonctionnement de ces derniers. Cependant de tels organes ne sont pas utilisables pour le déclenchement de dispositifs situés dans des sections de puits fortement inclinées et restent dans le puits après déclenchement.It is known to operate specialized equipment such as in particular valves located in a well by allowing gravity to descend from the control members which at the level of the devices, trigger the operation of the latter. However, such members cannot be used for triggering devices located in sections of well inclined wells and remain in the well after triggering.

On sait récupérer dans un puits certains de ces organes de commande en utilisant la technique de travail au câble nommée en anglais "wire line", mais cette technique ne s'applique pas aux puits fortement inclinés.It is known to recover from a well some of these control members using the cable working technique known in English as "wire line", but this technique does not apply to steep wells.

Il est aussi connu de commander des dispositifs en pompant dans un premier sens depuis la surface un organe de commande adapté à coopérer avec ces dispositifs pour les déclencher, puis d'inverser le sens de pompage pour remonter l'organe à la surface. Cependant de tels organes, qui sont utilisables dans les puits fortement inclinés, voire horizontaux, nécessitent que le pompage puisse s'effectuer suivant deux sens opposés.It is also known to control devices by pumping in a first direction from the surface a control member adapted to cooperate with these devices to trigger them, then to reverse the pumping direction to raise the member to the surface. However, such members, which can be used in well inclined, even horizontal wells, require that pumping can be carried out in two opposite directions.

De telles techniques sont notamment décrites dans les brevets US 4 349 072, US 3 656 562, US 3 263 752, US 2 752 855, US 2 999 545. L'objet de la présente invention est de fournir un ensemble et un procédé de manoeuvre qui ne présentent pas les inconvénients précédemment cités et qui permettent notamment de commander sélectivement un grand nombre d'équipements spécialisés d'intervention, tels des vannes, mettant en communication avec un tubage des parties du sol sensiblement isolées hydrauliquement, au moins au niveau du puits.Such techniques are in particular described in US Patents 4,349,072, US 3,656,562, US 3,263,752, US 2,752,855, US 2,999,545. The object of the present invention is to provide an assembly and an operating method which do not have the drawbacks mentioned above and which in particular make it possible to selectively control a large number of specialized intervention equipment, such as valves, putting in communication with casing of the parts of the ground substantially hydraulically insulated, at least at the level of the well.

La présente invention a donc pour objet un procédé pour manoeuvrer des équipements spécialisés d'intervention dans un puits foré ayant au moins une zone fortement déviée par rapport à la verticale, ledit puits foré comportant au moins un premier conduit tubulaire le long duquel sont installés à distance lesdits équipements, comportant les étapes suivantes :

- on introduit dans ledit premier conduit tubulaire un organe de commande,
- on fixe à une extrémité dudit organe un câble,

caractérisé en ce que

- on descend ledit organe de commande dans ledit conduit tubulaire par pompage hydraulique descendant,
- on assure le défilement du câble dans le conduit tubulaire à partir de la surface,
- on remonte l'organe de commande par traction sur le câble à partir de la surface,
- on manoeuvre sélectivement lesdits équipement spécialisés, lors du passage de l'organe de commande à l'aplomb desdits équipements en descente ou remontée.The present invention therefore relates to a method for operating specialized equipment for intervention in a wellbore having at least one zone strongly deviated from the vertical, said wellbore comprising at least a first tubular conduit along which are installed at distance said equipment, comprising the following steps:

- a control member is introduced into said first tubular conduit,
a cable is fixed at one end of said member,

characterized in that

- said control member is lowered into said tubular conduit by downward hydraulic pumping,
- the cable is made to travel in the tubular conduit from the surface,
- the control member is raised by pulling on the cable from the surface,
- Said specialized equipment is selectively maneuvered, during the passage of the control member directly above said equipment in descent or ascent.

De manière avantageuse,

- on équipe, à la surface du sol ledit organe de commande sur sa circonférence d'au moins un pène de clé, ledit pène de clé étant apte à coopérer avec un siège de manoeuvre d'un desdits équipements spécialisés, de forme complémentaire associé audit pène,
- on déplace ledit organe de commande dans ledit premier conduit pour venir à l'aplomb d'un équipement sélectionné,
- on assure l'enclenchement dudit pène de clé avec le siége associé dudit équipement,
- on prolonge le déplacement dudit organe qui manoeuvre ledit équipement,
- on assure, une fois la manoeuvre effectuée, le dégagement dudit pène de clé, du siège,
- on remonte l'organe de commande à la surface.Advantageously,

- On the surface of the ground, said control member is fitted with at least one key bolt, said key bolt being able to cooperate with an operating seat of one of said specialized equipment, of complementary shape associated with said bolt,
moving said control member in said first conduit to come into line with selected equipment,
- it ensures the engagement of said key bolt with the associated seat of said equipment,
the movement of said member which operates said equipment is extended,
- once the maneuver has been carried out, it ensures that said key bolt is released from the seat,
- the control member is raised to the surface.

Dans un mode de réalisation particulier de l'invention, ledit premier conduit étant une colonne tubulaire de commande, et les équipements spécialisés étant des vannes de production de fluide de formations géologiques traversées par le puits,

- on manoeuvre lesdites vannes par l'organe de commande,
- on assure l'écoulement du fluide dans ladite colonne de commande et la production en surface dudit fluide dans un second conduit constituant une colonne de production reliée à son extrémité basse avec l'extrémité basse de ladite colonne tubulaire de commande.In a particular embodiment of the invention, said first conduit being a tubular control column, and the specialized equipment being valves for producing fluid of geological formations traversed by the well,

- said valves are operated by the control member,
- It ensures the flow of the fluid in said control column and the production at the surface of said fluid in a second conduit constituting a production column connected at its lower end with the lower end of said tubular control column.

La présente invention s'applique également à un dispositif pour manoeuvrer des équipements spécialisés d'intervention dans un puits foré ayant au moins une zone fortement déviée par rapport à la verticale, ledit puits foré comportant au moins un premier conduit tubulaire le long duquel sont installés à distance lesdits équipements, un organe de commande étant introduit dans ledit premier conduit tubulaire et relié en surface par un câble à une de ces extrémités, caractérisé en ce que le dispositif comporte en outre des moyens de pompage hydraulique descendant aptes à déplacer ledit organe dans ledit conduit tubulaire, des moyens de défilement du câble dans le conduit tubulaire, des moyens de traction sur le câble à partir de la surface et des moyens de commande sélective desdits équipements spécialisés lors du passage de l'organe de commande à l'aplomb desdits équipements en descente ou en remontée.The present invention also applies to a device for operating specialized equipment for intervention in a drilled well having at least one zone strongly deviated from the vertical, said drilled well comprising at least one first tubular conduit along which are installed. remotely said equipment, a control member being introduced into said first tubular conduit and connected to the surface by a cable at one of these ends, characterized in that the device further comprises downward hydraulic pumping means capable of moving said member in said tubular conduit, means for passing the cable through the tubular conduit, means for pulling the cable from the surface and means for selective control of said specialized equipment during the passage of the control member directly above said downhill or ascent equipment.

Avantageusement, l'organe de commande comporte sur sa circonférence au moins un pène de clé apte à coopérer avec un siège de manoeuvre d'un équipement spécialisé, de forme complémentaire associé audit pène de clé.Advantageously, the control member comprises on its circumference at least one key bolt capable of cooperating with an operating seat for specialized equipment, of complementary shape associated with said key bolt.

Dans un mode de réalisation particulier le dispositif comporte en outre des moyens d'enclenchement dudit pène de clé avec le siège associé dudit équipement, des moyens d'entraînement dudit équipement par ledit organe lors de l'enclenchement, et des moyens de dégagement dudit pène de clé une fois la manoeuvre effectuée.In a particular embodiment, the device further comprises means for engaging said key pin with the associated seat of said equipment, means for driving said equipment by said member during engagement, and means for releasing said pin key once the maneuver has been carried out.

Selon un mode de réalisation préféré, ledit premier conduit étant une colonne tubulaire de commande et les équipements spécialisés étant des vannes de production de fluide de formations géologiques traversées par le puits, le dispositif comporte en outre un second conduit constituant une colonne de production reliée à son extrémité basse avec l'extrémité basse de ladite colonne tubulaire de commande.According to a preferred embodiment, said first conduit being a tubular control column and the specialized equipment being valves for the production of fluid of geological formations traversed by the well, the device further comprises a second conduit constituting a production column connected to its lower end with the lower end of said tubular control column.

Le dispositif comporte avantageusement une pompe disposée dans la colonne de production.The device advantageously comprises a pump arranged in the production column.

La présente invention concerne également une installation de production de fluide à partir d'une formation géologique traversée par un puits foré comportant un dispositif selon l'une quelconque des revendications 7 à 9, caractérisée en ce que le puits est divisé en plusieurs zones de production séparées et isolées les unes des autres par des moyens d'étanchéïté de type packers, au moins une vanne étant disposée au niveau d'une zone de production.The present invention also relates to a fluid production installation from a geological formation traversed by a drilled well comprising a device according to any one of claims 7 to 9, characterized in that the well is divided into several production zones separated and isolated from each other by packer type sealing means, at least one valve being arranged at a production zone.

L'invention pourra être bien comprise et tous ses avantages apparaîtront clairement à la lecture de la description qui suit dont un exemple de réalisation est illustré par les figures annexées parmi lesquelles :

  • - la figure 1 représente en coupe un puits équipé de la présente invention,
  • - la figure 2 montre en détail l'organe de commande selon la présente invention au niveau d'une vanne à manoeuvrer,
  • - la figure 2A montre en détail les clapets anti-retour des séries d'orifices du corps d'une vanne,
  • - la figure 3 représente une vue en coupe transversale de la vanne en coopération avec l'organe de commande,
  • - la figure 4 représente une vue éclatée de la chemise d'ouverture de la vanne.
The invention can be clearly understood and all of its advantages will appear clearly on reading the description which follows, an exemplary embodiment of which is illustrated by the appended figures, in which:
  • FIG. 1 represents in section a well equipped with the present invention,
  • FIG. 2 shows in detail the control member according to the present invention at the level of a valve to be operated,
  • FIG. 2A shows in detail the non-return valves of the series of orifices of the body of a valve,
  • FIG. 3 represents a cross-sectional view of the valve in cooperation with the control member,
  • - Figure 4 shows an exploded view of the valve opening jacket.

Sur la figure 1 est représenté un puits 1 comportant sur sa partie basse une partie fortement inclinée sur la verticale, se terminant par une partie horizontale. Ce puits comporte sur sa paroi interne un cuvelage 2 réalisé sous la forme d'éléments tubulaires. Ces éléments dont on revêt la paroi interne du trou de forage pour la maintenir, sont fixés par des joints de cimentation 6. Le puits 1, qui traverse des formations géologiques dont on veut produire des fluides, comporte différentes zones de production 30, 31, 32, 33. Chacune des zones de production 30, 31, 32 communique avec des zones intérieures au cuvelage 2 respectivement par des orifices 13, 15, 17. Les zones de production sont isolées les unes des autres par des joints annulaires d'étanchéité 7, 8, 9 du type packer. Ainsi le fluide se trouvant dans la formation isolé latéralement entre deux joints d'étanchéïté est dirigé dans le cuvelage par les orifices 13, 15, 17.In Figure 1 is shown a well 1 having on its lower part a part strongly inclined to the vertical, ending in a horizontal part. This well has on its internal wall a casing 2 produced in the form of tubular elements. These elements with which the internal wall of the borehole is coated to maintain it, are fixed by cementing joints 6. The well 1, which passes through geological formations for which it is desired to produce fluids, has different production zones 30, 31, 32 33. Each of the production zones 30, 31, 32 communicates with zones inside the casing 2 respectively by orifices 13, 15, 17. The production zones are isolated from each other by annular seals 7, 8 , 9 of the packer type. Thus the fluid found in the laterally isolated formation between two seals is directed into the casing through the orifices 13, 15, 17.

Après que le fluide de la formation se soit introduit dans le cuvelage par les orifices, il est nécessaire de faire remonter ledit fluide en surface. Pour cela un conduit, tel qu'une colonne de production 4 est disposée dans le cuvelage.After the formation fluid has entered the casing through the orifices, it is necessary to bring said fluid to the surface. For this, a conduit, such as a production column 4 is disposed in the casing.

Afin de pouvoir sélectionner la zone de production dont on désire recueillir le fluide et le faire remonter en surface, on équipe le cuvelage d'un autre conduit constituant une colonne tubulaire de commande 3.In order to be able to select the production zone from which it is desired to collect the fluid and make it rise to the surface, the casing is fitted with another conduit constituting a tubular control column 3.

A l'intérieur du cuvelage 2, la colonne de production 4 et la colonne tubulaire de commande 3 sont maintenus parallèlement l'une à l'autre par des packers double 6a, 7a, 8a, 9a. Ces packers constituent également des moyens d'étanchéïté entre le cuvelage 2 et les colonnes 3 et 4 de manière à ce que, dans le cuvelage, le fluide introduit par les orifices 13, 15, 17 réalise un volume délimité par deux sections correspondant à des packers à des niveaux différents.Inside the casing 2, the production column 4 and the tubular control column 3 are held parallel to one another by double packers 6a, 7a, 8a, 9a. These packers also constitute sealing means between the casing 2 and the columns 3 and 4 so that, in the casing, the fluid introduced through the orifices 13, 15, 17 achieves a volume delimited by two sections corresponding to packers at different levels.

Dans un mode de réalisation préféré, les packers à l'intérieur du cuvelage 7a, 8a, 9a sont au même niveau dans le puits que les joints d'étanchéïté 7, 8, 9, les volumes délimités dans le cuvelage coïncidant aux zones de production 30, 31, 32.In a preferred embodiment, the packers inside the casing 7a, 8a, 9a are at the same level in the well as the seals 7, 8, 9, the volumes delimited in the casing coinciding with the production zones 30, 31, 32.

La colonne de production 4 est reliée à la colonne tubulaire de commande 3 par un élément de liaison 12 tel qu'un tube situé au niveau de l'extrémité basse des deux conduits. Cette colonne de production comporte, disposée à l'altitude requise, une pompe 19 de circulation qui aspire le fluide des formations et le refoule à la surface du sol par la bouche 20. La position de la pompe 19 dans le puits pourra être située sensiblement au dessous du niveau dynamique d'une formation en production. Selon l'invention le sens de circulation du fluide de la pompe ne peut être qu'unique et ascendant.The production column 4 is connected to the tubular control column 3 by a connecting element 12 such as a tube located at the lower end of the two conduits. This production column comprises, arranged at the required altitude, a circulation pump 19 which sucks the fluid from the formations and discharges it to the ground surface through the mouth 20. The position of the pump 19 in the well may be located substantially below the dynamic level of production training. According to the invention, the direction of circulation of the pump fluid can only be unique and ascending.

La zone de production choisie pour être exploitée est mise en communication par les orifices du cuvelage avec le volume de fluide autour des deux colonnes 3 et 4, délimité par deux packers successifs.The production area chosen to be used is placed in communication by the casing orifices with the volume of fluid around the two columns 3 and 4, delimited by two successive packers.

Ce volume de fluide s'écoule dans la colonne tubulaire de commande 3 par des vannes de circulation 14, 16, 18, telles que des vannes à chemises coulissantes.This volume of fluid flows into the tubular control column 3 through circulation valves 14, 16, 18, such as valves with sliding sleeves.

En production, les vannes 14, 16, 18 sont normalement dotées de clapets anti-retour empêchant la circulation de fluide du conduit vers les formations, mais on pourra très bien supprimer ces clapets, lorsque, par exemple, on voudra procéder à la fracturation d'une zone.In production, the valves 14, 16, 18 are normally fitted with non-return valves preventing the circulation of fluid from the conduit to the formations, but these valves may very well be eliminated, when, for example, we want to proceed with the fracturing of 'a zone.

L'extrémité inférieure de la colonne tubulaire de commande 3 comporte une vanne 10, et l'extrémité inférieure de la colonne de production 4, une vanne 11 commandable chacune à distance, tel des vannes à chemise coulissante semblables aux vannes 14, 16, 18. Le fait d'équiper chaque extrémité des conduits 3, 4 d'une vanne permet d'une part de mettre en communication la partie inférieure 33 du puits pour produire les fluides du fond du puits, et d'autre part une disponibilité des extrémités pour des besoins particuliers de l'exploitation du puits, tel qu'une descente d'un outil au travers de la vanne pour le raclage du puits.The lower end of the tubular control column 3 comprises a valve 10, and the lower end of the production column 4, a valve 11 each controllable remotely, such as sliding jacket valves similar to valves 14, 16, 18 The fact of equipping each end of the conduits 3, 4 with a valve makes it possible on the one hand to put the lower part 33 of the well in communication to produce the fluids from the bottom of the well, and on the other hand to make the ends available for particular needs of operating the well, such as lowering a tool through the valve for scraping the well.

Les vannes 10, 14, 16, 18 sont sélectivement commandées en ouverture et fermeture depuis la surface du sol par un organe 21 descendu par un pompage hydraulique produit avec une station de pompage 29 reliée à la colonne tubulaire de commande 3 par une canalisation 28. L'organe 21 de commande est relié, au cours de la descente, à un câble 22 traversant un presse-étoupe 23, de manière que la descente de l'organe 21 s'effectue selon une technique analogue à celle des outils pompés, couramment appelée technique TFL (de l'anglo-saxon "Through Flow Line").The valves 10, 14, 16, 18 are selectively controlled to open and close from the ground surface by a member 21 lowered by hydraulic pumping produced with a pumping station 29 connected to the tubular control column 3 by a pipe 28. The control member 21 is connected, during the descent, to a cable 22 passing through a cable gland 23, so that the descent of the member 21 is carried out according to a technique analogous to that of pumped tools, commonly called TFL technique (from the Anglo-Saxon "Through Flow Line").

Après avoir traversé le presse-étoupe 23, le câble 22 est repris par deux poulies de renvoi qui le dirigent vers un treuil 26 commandé par le poste 27.After passing through the cable gland 23, the cable 22 is taken up by two deflection pulleys which direct it towards a winch 26 controlled by the station 27.

Dans le cas d'un puits fortement incliné, la force de gravité n'est pas suffisante pour descendre l'organe de commande 21 jusqu'à l'extrémité du puits. On utilise donc pour la descente dans la colonne tubulaire de commande 3 un pompage hydraulique d'un fluide, tel qu'une huile dégazée, puis pour la remontée le câble 22 qui est tiré par le treuil 26.In the case of a strongly inclined well, the gravitational force is not sufficient to descend the control member 21 to the end of the well. A hydraulic pumping of a fluid, such as degassed oil, is therefore used for the descent into the tubular control column 3, then for the cable 22 which is pulled by the winch 26.

L'organe 21 par son déplacement par pompage et au câble, commande l'ouverture ou la fermeture des vannes de circulation 10, 14, 16, 18, d'une manière rapide qui ne nécessite pas de grosse opération, telle que par exemple le déplacement de la pompe 19.The member 21 by its displacement by pumping and by cable, controls the opening or closing of the circulation valves 10, 14, 16, 18, in a rapid manner which does not require large operations, such as for example the moving the pump 19.

Dans ce qui précède, la description a été développée dans le cas de commande d'ouverture et fermeture de vannes, mais l'invention garde tous ses avantages dans le cas où la commande s'effectue sur d'autres outils spécialisés d'intervention dont il est nécessaire d'établir un passage d'un état actif à un état passif et vice-versa.In the foregoing, the description has been developed in the case of valve opening and closing control, but the invention retains all its advantages in the case where the control is carried out on other specialized intervention tools including it is necessary to establish a transition from an active state to a passive state and vice versa.

La mise en oeuvre de l'organe 21 de commande s'effectue comme suit :
On introduit par l'ouverture en surface de la colonne tubulaire de commande 3, l'organe de commande 21 relié à une extrémité au câble 22. On met ensuite en place un presse-étoupe 23 autour du câble 22 à l'embout supérieur de la colonne tubulaire de commande 3.The implementation of the control member 21 is carried out as follows:
Is introduced through the surface opening of the tubular control column 3, the control member 21 connected at one end to the cable 22. Then a cable gland 23 is placed around the cable 22 at the upper end of the tubular control column 3.

L'extrémité supérieure de la colonne de commande 3 étant reliée par la canalisation de pompage 28 à la station 29, on injecte le fluide de pompage de manière à déplacer l'organe 21 de commande vers sa position de travail, le câble se dévidant au fur et à mesure de l'avance de l'organe de commande.The upper end of the control column 3 being connected by the pumping pipe 28 to the station 29, the pumping fluid is injected so as to move the control member 21 to its working position, the cable unwinding at the as the control unit advances.

Dans le mode de réalisation présenté à la figure 1, on désire produire successivement les zones 30, 31, 32, 33. Pour réaliser ces différentes étapes de production, on commande la vanne 14 en ouverture et les vannes 16, 17, 10 en fermeture. Le fluide de la zone 30 s'écoule dans le cuvelage 2 par les orifices 13 et vient remplir le volume entre les packers 6A et 7A. L'ouverture de la vanne 14 par l'organe 21 (par des moyens explicités ultérieurement) permet l'introduction du fluide dans la colonne tubulaire 4, sa descente jusqu'à l'extrémité puis la remontée en surface grâce à l'action de la pompe 19. Lorsque la zone 30 aura été complètement exploitée, l'organe 21 fermera la vanne 14 et viendra ouvrir la vanne suivante 16 pour produire la zone 31 suivante.In the embodiment presented in FIG. 1, it is desired to successively produce the zones 30, 31, 32, 33. To carry out these different production stages, the valve 14 is opened and the valves 16, 17, 10 closed. . The fluid in zone 30 flows into the casing 2 through the orifices 13 and fills the volume between the packers 6A and 7A. The opening of the valve 14 by the member 21 (by means explained later) allows the introduction of the fluid into the tubular column 4, its descent to the end then the ascent to the surface thanks to the action of the pump 19. When the zone 30 has been fully exploited, the member 21 will close the valve 14 and will open the next valve 16 to produce the next zone 31.

Les vannes de circulation 14, 16, 18, 10 ou tout autre appareillage, tel des dispositifs de mesure, des outils ou des instruments, sont manoeuvrés grâce à l'organe 21 par pompage prolongé en descente et par traction sur le câble 22 en remontée.The circulation valves 14, 16, 18, 10 or any other apparatus, such as measuring devices, tools or instruments, are operated by the member 21 by prolonged pumping downhill and by pulling on the cable 22 upward .

L'organe 21 ayant opéré sa manoeuvre, en ouverture ou fermeture on le remonte à la surface en actionnant le treuil 22 qui produit une traction ascendante. L'organe pourra aussi être temporairement placé au fond du premier conduit de commande 3 au-delà de l'embranchement avec le conduit de production 4.The member 21 having operated its maneuver, in opening or closing it is raised to the surface by actuating the winch 22 which produces an upward traction. The member could also be temporarily placed at the bottom of the first control duct 3 beyond the branch with the production duct 4.

On pourra, avec un organe 21 adapté, réaliser les manoeuvres de plusieurs dispositifs sans être obligé de remonter l'organe 21. Les dispositifs pourront être manoeuvrés au cours de la descente de l'organe 21 de commande vers le fond du puits et/ou au cours de sa remontée du fond du puits.It is possible, with a suitable member 21, to carry out the maneuvers of several devices without being obliged to reassemble the member 21. The devices can be operated during the descent of the control member 21 to the bottom of the well and / or during its ascent from the bottom of the well.

A cet effet, l'organe et le dispositif comporteront les parties de clés conjuguées nécessaires.To this end, the organ and the device will include the necessary combined key parts.

De la même manière que l'on manoeuvre les dispositifs à partir de l'organe de commande relié par un câble à la surface, on pourra mettre en place des outils ou instruments dans le tubage, en réalisant des mouvements de l'organe dans l'un et/ou l'autre sens à partir des commandes de pompage et/ou de traction sur le câble.In the same way that the devices are operated from the control member connected by a cable to the surface, it will be possible to place tools or instruments in the casing, by making movements of the member in the 'and / or the other direction from the pumping and / or traction controls on the cable.

Le câble 22 pourra comporter des conducteurs électriques adaptés à transmettre des informations ou à commander l'organe 21, notamment commander sa coopération avec le dispositif à manoeuvrer.The cable 22 may include electrical conductors suitable for transmitting information or for controlling the member 21, in particular controlling its cooperation with the device to be operated.

Les figures 2, 2 bis, 3, 4 montrent l'organe de commande 21 coopérant avec la vanne 16 à chemise coulissante pour produire l'arrêt de la production de la deuxième zone de production 31.FIGS. 2, 2a, 3, 4 show the control member 21 cooperating with the valve 16 with a sliding jacket to produce the stopping of the production of the second production zone 31.

L'organe de commande 21 comporte un corps 35 ne laissant pas passer de fluide de production à son travers lorsqu'aucune traction n'est effectuée sur le câble 22. L'étanchéité extérieure de l'organe 21 avec l'intérieur de la colonne tubulaire de commande 3 est réalisée par un joint 36. Le corps 35 comporte en outre une pièce d'accrochage réalisant un pène de clé 37, comportant une rainure transversale. Ces pènes de clé 37 sont mis en position dans le corps 35 au niveau d'échancrures 56 réparties circonférentiellement autour de l'organe. Dans le mode de réalisation représenté en coupe à la figure 3, l'organe 35 est muni de 3 échancrures dans chacune desquelles est engagé un pène de clé 37.The control member 21 comprises a body 35 which does not allow production fluid to pass through it when no pulling is carried out on the cable 22. The external sealing of the member 21 with the interior of the column tubular control 3 is formed by a seal 36. The body 35 further comprises a hooking part making a key pin 37, having a transverse groove. These key bolts 37 are positioned in the body 35 at the notches 56 distributed circumferentially around the member. In the embodiment shown in section in FIG. 3, the member 35 is provided with 3 notches in each of which is engaged a pin bolt 37.

Bien entendu, on pourrait ne disposer qu'un seul pène autour de l'organe. Ce pène de clé d'une forme particulière pour l'ouverture ou la fermeture d'une vanne précise est installé en surface sur l'organe de commande 21 et doit donc être changé pour chaque opération.Of course, we could have only one bolt around the organ. This key bolt of a particular shape for opening or closing a specific valve is installed on the surface on the control member 21 and must therefore be changed for each operation.

La vanne 16 par elle-même comporte un corps 42 solidaire de la colonne de commande dans lequel coulisse une chemise tubulaire 39. Cette chemise 39 est usinée de manière à présenter intérieurement un premier siège sous forme d'une nervure 38 de forme associée symétrique à la rainure du pène de clé 37.The valve 16 by itself comprises a body 42 integral with the control column in which slides a tubular jacket 39. This jacket 39 is machined so as to present internally a first seat in the form of a rib 38 of shape associated symmetrical with the key pin groove 37.

Sur la figure 2, l'organe de commande 21 est équipé d'un pène de clé 37 qui coopère avec le premier siège 38 pour la fermeture de la vanne.In Figure 2, the control member 21 is equipped with a key bolt 37 which cooperates with the first seat 38 for closing the valve.

La chemise 39 de la vanne 16 comporte un deuxième siège 40 qui s'associe avec la forme d'un pène de clé pour l'ouverture de la vanne 16. Une série d'orifices 41 percés dans la chemise 39 permettent selon la position de la chemise 39, le passage de fluide à l'intérieur de la colonne tubulaire de commande.The jacket 39 of the valve 16 has a second seat 40 which associates with the shape of a key bolt for the opening of the valve 16. A series of holes 41 drilled in the jacket 39 allow, depending on the position of the jacket 39, the passage of fluid inside the tubular control column.

Cependant comme on peut le voir sur la figure 2 la clé de pène 37 n'a aucune action sur le siège 40 puisque les formes ne sont pas complémentaires, il est donc nécessaire de changer en surface les pènes de clé pour installer une forme complémentaire au siège 40.However, as can be seen in FIG. 2, the bolt key 37 has no action on the seat 40 since the shapes are not complementary, it is therefore necessary to change the surface of the key bolts to install a shape complementary to the seat 40.

Pour obtenir l'ouverture ou la fermeture de la vanne 16, on réalise un coulissement de la chemise 39, par rapport au corps 42, entre deux positions extrêmes. Chaque position extrême est définie par l'introduction d'un ergot élastique circonférentiellement autour de la chemise dans une rainure réalisée dans le corps de la vanne. Ces deux positions extrêmes sont clairement visibles sur la figure 2. La position d'ouverture coïncide avec une butée de la chemise 39 à l'avant de la vanne (c'est-à-dire au niveau du packer 8a), la position de fermeture avec une butée à l'arrière. L'ergot élastique 43 n'est pas constitué entièrement circonférentiellement. Des fentes 60 sont réalisés longitudinalement dans l'axe de la chemise de manière à permettre un dégagement aisé des ergots du fond de la rainure grâce à leur élasticité.To obtain the opening or closing of the valve 16, the jacket 39 is made to slide, relative to the body 42, between two extreme positions. Each extreme position is defined by the introduction of an elastic lug circumferentially around the jacket in a groove made in the body of the valve. These two extreme positions are clearly visible in FIG. 2. The open position coincides with a stop of the jacket 39 at the front of the valve (that is to say at the level of the packer 8a), the position of closure with a stopper at the back. The elastic lug 43 is not not made up entirely circumferentially. Slits 60 are made longitudinally in the axis of the jacket so as to allow easy release of the pins from the bottom of the groove thanks to their elasticity.

Selon la position, la série d'orifices 45 située dans le corps 42 de vanne se trouve ou non en face de la série d'orifices 41 située dans la chemise 39. L'étanchéité entre la chemise 39 et le corps 42 de vanne est assurée par les joints 46. Les orifices 45 débouchent dans un clapet anti-retour 47 (figure 2A) qui évite l'injection du fluide de pompage dans les couches productrices, tout en autorisant la production de fluide provenant de ces mêmes couches.Depending on the position, the series of holes 45 located in the valve body 42 may or may not be opposite the series of holes 41 located in the jacket 39. The seal between the jacket 39 and the valve body 42 is provided by the seals 46. The orifices 45 open into a non-return valve 47 (FIG. 2A) which prevents the injection of the pumping fluid into the producing layers, while allowing the production of fluid from these same layers.

La liaison du câble 22 à l'organe de commande 21 comporte un point faible en traction dont la résistance est sensiblement inférieure à la limite élastique en traction du câble 21, mais nettement supérieure à la tension de cisaillement d'une goupille 52, de façon à permettre le retrait du câble 22, en cas de coincement de l'organe 21 et autoriser le repêchage de ce dernier.The connection of the cable 22 to the control member 21 has a weak point in tension, the resistance of which is substantially less than the elastic limit in tension of the cable 21, but clearly greater than the shear stress of a pin 52, so to allow the withdrawal of the cable 22, in the event of jamming of the member 21 and authorize the recovery of the latter.

L'organe de commande 21 comporte un nez 48 permettant l'éventuel repêchage de l'organe. Il comporte également des moyens de circulation de fluide au travers de l'organe lorsqu'un certain seuil de traction est exercé sur le câble.The control member 21 has a nose 48 allowing the possible recovery of the member. It also includes means for circulating fluid through the member when a certain traction threshold is exerted on the cable.

Ces moyens comportent un obturateur 49 coopérant avec un siège 50 en position fermée et coulissant sur des guides 51 lorsque la goupille 52 immobilisant l'obturateur 49 s'est cisaillée sous l'action de l'effort prédéterminé de traction exercé par le câble 22 sur l'organe 21. La course de l'obturateur en position ouverte est limitée par une butée 53. Lorsque la goupille s'est cisaillée, on pourra donc remonter l'organe 21 par traction du câble sans avoir à évacuer le fluide de pompage de la colonne.These means comprise a shutter 49 cooperating with a seat 50 in the closed position and sliding on guides 51 when the pin 52 immobilizing the shutter 49 has sheared under the action of the predetermined tensile force exerted by the cable 22 on the member 21. The stroke of the shutter in the open position is limited by a stop 53. When the pin has sheared, it is therefore possible to reassemble the member 21 by pulling the cable without having to evacuate the pumping fluid from the column.

On explicitera maintenant les mouvements d'ouverture et de fermeture des vannes.We will now explain the opening and closing movements of the valves.

Si on désire fermer la vanne 16, on équipe tout d'abord en surface l'organe de commande avec les pènes de clés 37 associés au siège de fermeture de la vanne correspondant à la nervure 38. On descend ensuite, par un pompage hydraulique, l'organe de commande 21 jusqu'à ce que le pène de clé 37 vient s'encliqueter avec le siège 38, puis on arrête la circulation de fluide de pompage et on exerce une traction sur le câble 22, de manière à déplacer la chemise 39 et donc fermer la vanne 16.If it is desired to close the valve 16, the control member is first of all fitted on the surface with the key bolts 37 associated with the valve closing seat corresponding to the rib 38. We then descend, by hydraulic pumping, the control member 21 until the key pin 37 engages with the seat 38, then the circulation of pumping fluid is stopped and traction is exerted on the cable 22, so as to move the jacket 39 and therefore close the valve 16.

Pour remonter l'organe 21 de commande, on exerce sur le câble 22 une traction supérieure à la traction de déplacement de la chemise pour la fermeture de la vanne, de manière que le pène 37 en s'effaçant dans les échancrures 56 se libère du siège 38, et qu'éventuellement la goupille 52 soit cisaillée, permettant la mise en action des moyens de circulation interne de l'organe.To reassemble the control member 21, there is exerted on the cable 22 a traction greater than the displacement displacement of the jacket for the closing of the valve, so that the bolt 37, being erased in the notches 56, is released from the seat 38, and that optionally the pin 52 is sheared, allowing the internal circulation means of the member to be actuated.

La libération entre le pène de clé 37 et le siège 38 réalisant la nervure s'effectue, par exemple, en fin de traction sur le câble 22, par la coopération d'un chanfrein 54 de la vanne 16 avec un biseau 55 du pène 37. L'effacement du pène 37 dans l'échancrure 56 du corps 35 se produit par l'applatissement d'un ressort de rappel 57 situé sous la clé de pène.The release between the key bolt 37 and the seat 38 forming the rib takes place, for example, at the end of traction on the cable 22, by the cooperation of a chamfer 54 of the valve 16 with a bevel 55 of the bolt 37 The deletion of the bolt 37 in the notch 56 of the body 35 occurs by the bursting of a return spring 57 located under the bolt key.

La remontée de l'organe 21 à la surface du sol s'effectue ensuite par une traction prolongée sur le câble 22.The ascent of the member 21 to the surface of the ground is then carried out by prolonged traction on the cable 22.

Maintenant, pour un mouvement inverse, c'est-à-dire d'ouverture de la vanne, on équipe en surface l'organe 21 avec un pène de clé dont la forme est complémentaire à celle du siège 40, on descend par pompage hydraulique l'organe jusqu'à ce que le pène de clé et le siège 40 coopèrent ensemble, on prolonge le pompage pour faire avancer la chemise jusqu'à ouvrir la vanne 16.Now, for a reverse movement, that is to say opening the valve, the member 21 is equipped on the surface with a key bolt whose shape is complementary to that of the seat 40, it is lowered by hydraulic pumping the member until the key bolt and the seat 40 cooperate together, the pumping is extended to advance the jacket until opening valve 16.

La remontée de l'organe à la surface du sol s'effectue de la même manière que précédemment, par traction sur le câble 22, les surfaces biaisées du pène de clé et de la chemise permettant un dégagement dudit pène sans déplacement de la chemise.The ascent of the member to the surface of the ground is carried out in the same manner as previously, by pulling on the cable 22, the biased surfaces of the key bolt and of the sleeve allowing disengagement of said bolt without displacement of the sleeve.

Une fois que les vannes 10, 14, 16, 18 sont placées dans les positions désirées d'exploitation (c'est-à-dire dans le cas d'un début d'exploitation de la zone 30, la vanne 14 ouverte, les vannes 16, 18, 10 fermées), et qu'éventuellement l'organe 21 est remonté, on met en fonctionnement la pompe 19 pour que les fluides des formations sélectionnées puissent pénétrer dans la colonne tubulaire, aller jusqu'à l'élément de liaison 12, et remonter par la colonne de production 4, en passant au travers de la pompe 19, vers la bouche 20.Once the valves 10, 14, 16, 18 are placed in the desired operating positions (that is to say in the case of the start of operation of the zone 30, the valve 14 open, the valves 16, 18, 10 closed), and that optionally the member 21 is reassembled, the pump 19 is put into operation so that the fluids of the selected formations can penetrate the tubular column, go to the connecting element 12, and go back up through the production column 4, passing through the pump 19, towards the mouth 20.

La colonne tubulaire de commande 3 pourra aussi être équipé d'une pompe capable de suppléer la pompe 19 de la colonne de production 4.The tubular control column 3 can also be equipped with a pump capable of replacing the pump 19 of the production column 4.

La pompe 19 pourra être une pompe centrifuge ou une pompe à tiges, adaptée à coopérer avec la colonne de production 4 pour sa mise en place et son utilisation.The pump 19 may be a centrifugal pump or a rod pump, adapted to cooperate with the production column 4 for its installation and its use.

On ne sortira pas du cadre de la présente invention en remplaçant la pompe 19 par tout autre moyen de pompage tel que par exemple une vanne dite de "gas lift".It will not depart from the scope of the present invention to replace the pump 19 by any other pumping means such as for example a valve called "gas lift".

Dans les détails de réalisation précédents, il était prévu de changer les pènes de clé pour chaque vanne, mais on peut facilement adapter la présente invention pour n'utiliser que deux formes de pène de clé, une première servant à l'ouverture de toutes les vannes, une seconde à la fermeture.In the previous embodiments, it was planned to change the key pins for each valve, but it is easy to adapt the present invention to use only two forms of key pin, a first serving to open all the valves, one second at closing.

Sans sortir du cadre de la présente invention, on pourra appliquer le procédé et l'ensemble de manoeuvre selon l'invention à des puits sous-marins.Without departing from the scope of the present invention, the method and assembly for maneuvering according to the invention to underwater wells.

L'organe de commande 21 pourra comporter des articulations, de manière qu'il puisse circuler dans des de faible rayon de courbure.The control member 21 may include articulations, so that it can circulate within small radius of curvature.

L'organe pourra comporter des éléments d'étanchéité 36 situés de part et d'autre du pène 37 et comporter des outils tels qu'une coulisse de battage.The member may include sealing elements 36 located on either side of the bolt 37 and include tools such as a threshing slide.

Comme pour la technique des outils pompés, on pourra réaliser des raclage de paraffine, avec pompage simultané de solvant si nécessaire, la pose et le repêchage des outils de production (bouchon, clapet anti-retour, vanne de sécurité, vanne dite de "gas lift", instruments, tels des pompes à jet), le lavage du sable déposé au niveau des zones productrices, l'enregistrement de la pression de fond, l'injection de produit de traitement, l'instrumentation sur des trains de tiges coincés...As with the pumped tool technique, paraffin scraping can be carried out, with simultaneous pumping of solvent if necessary, installation and recovery of production tools (plug, non-return valve, safety valve, so-called "gas valve" lift ", instruments, such as jet pumps), washing of the sand deposited at the level of the producing zones, recording of the bottom pressure, injection of treatment product, instrumentation on stuck trains of rods. ..

L'organe de commande pourra aussi comporter un régulateur interne de by-pass qui autorise le passage de fluide à son travers dans le sens de la partie supérieure de l'organe vers la partie inférieure de l'organe. La régulation permet, soit de continuer à circuler dans le premier tubage lors du coincement de l'organe en cours de trajet, soit de répartir sur plusieurs éléments d'étanchéité 36 l'effort produit par la pression.The control member may also include an internal by-pass regulator which allows the passage of fluid through it in the direction from the upper part of the member to the lower part of the member. The regulation makes it possible either to continue to circulate in the first casing during the jamming of the member during the journey, or to distribute the force produced by the pressure over several sealing elements 36.

L'organe de commande pourra comporter une rallonge permettant de manoeuvrer des dispositifs, tels la vanne 10, au-delà de l'élément de liaison hydraulique 12.The control member may include an extension making it possible to operate devices, such as the valve 10, beyond the hydraulic connection element 12.

Les dispositifs commandés pourront être des instruments de mesure. L'espace compris entre le cuvelage 2 et le tubage 3, notamment celui situé au dessus de l'élément d'étanchéité 6a, pourra être utilisé pour constituer le conduit de retour à la place du conduit 4.The devices ordered may be measuring instruments. The space between the casing 2 and the casing 3, in particular that located above the sealing element 6a, can be used to constitute the return duct in place of the duct 4.

Claims (10)

1. - Procédé pour manoeuvrer des équipements spécialisés d'intervention (10, 14, 16, 18) dans un puits foré (1) ayant au moins une zone fortement déviée par rapport à la verticale, ledit puits foré comportant au moins un premier conduit tubulaire (3) le long duquel sont installés à distance lesdits équipements, comportant les étapes suivantes :

- on introduit dans ledit premier conduit tubulaire (3) un organe de commande (21),
- on fixe à une extrémité dudit organe un câble (23),

caractérisé en ce que

- on descend ledit organe de commande (21) dans ledit conduit tubulaire (3) par pompage hydraulique descendant,
- on assure le défilement du câble dans le conduit tubulaire à partir de la surface,
- on remonte l'organe de commande (21) par traction sur le câble (22) à partir de la surface,
- on manoeuvre sélectivement lesdits équipement spécialisés (10, 14, 16, 18), lors du passage de l'organe de commande à l'aplomb desdits équipements en descente ou remontée.1. - Method for operating specialized intervention equipment (10, 14, 16, 18) in a drilled well (1) having at least one zone strongly deviated from the vertical, said drilled well comprising at least one first conduit tubular (3) along which said equipment is installed remotely, comprising the following steps:

- a control member (21) is introduced into said first tubular conduit (3),
a cable (23) is fixed at one end of said member,

characterized in that

- said control member (21) is lowered into said tubular conduit (3) by downward hydraulic pumping,
- the cable is made to travel in the tubular conduit from the surface,
- the control member (21) is raised by pulling on the cable (22) from the surface,
- Said specialized equipment (10, 14, 16, 18) is selectively maneuvered, during the passage of the control member directly above said equipment during descent or ascent. 2. - Procédé pour manoeuvrer des équipements spécialisés selon la revendication 1, caractérisé en ce que

- on équipe, à la surface du sol ledit organe de commande (21) sur sa circonférence d'au moins un pène de clé (37), ledit pène de clé étant apte à coopérer avec un siège de manoeuvre (38, 40) d'un desdits équipements spécialisés, de forme complémentaire associé audit pène,
- on déplace ledit organe de commande dans ledit premier conduit pour venir à l'aplomb d'un équipement sélectionné,
- on assure l'enclenchement dudit pène de clé avec le siège associé dudit équipement,
- on prolonge le déplacement dudit organe qui manoeuvre ledit équipement,
- on assure, une fois la manoeuvre effectuée, le dégagement dudit pène de clé du siège,
- on remonte l'organe de commande à la surface.2. - A method for operating specialized equipment according to claim 1, characterized in that

- One equips, on the surface of the ground said control member (21) on its circumference with at least one key bolt (37), said key bolt being able to cooperate with an operating seat (38, 40) d one of said specialized equipment, of complementary shape associated with said bolt,
moving said control member in said first conduit to come into line with selected equipment,
- it ensures the engagement of said key bolt with the associated seat of said equipment,
the movement of said member which operates said equipment is extended,
- once the maneuver has been carried out, it ensures that said seat key bolt is released,
- the control member is raised to the surface. 3. - Procédé pour manoeuvrer des équipements spécialisés selon la revendication 1 ou 2, caractérisé en ce que ledit premier conduit étant une colonne tubulaire de commande (3), et les équipements spécialisés étant des vannes de production (10, 14, 16, 18) de fluide de formations géologiques traversées par le puits,

- on manoeuvre lesdites vannes par l'organe de commande (21),
- on assure l'écoulement du fluide dans ladite colonne de commande (3) et la production en surface dudit fluide dans un second conduit constituant une colonne de production (4) reliée à son extrémité basse avec l'extrémité basse de ladite colonne tubulaire de commande (3).3. - A method for operating specialized equipment according to claim 1 or 2, characterized in that said first conduit being a tubular control column (3), and the specialized equipment being production valves (10, 14, 16, 18 ) fluid of geological formations crossed by the well,

- said valves are operated by the control member (21),
- it ensures the flow of the fluid in said control column (3) and the production on the surface of said fluid in a second conduit constituting a production column (4) connected at its lower end with the lower end of said tubular column of control (3). 4. - Dispositif pour manoeuvrer des équipements spécialisés d'intervention (10, 14, 16, 18) dans un puits foré ayant au moins une zone fortement déviée par rapport à la verticale, ledit puits foré comportant au moins un premier conduit tubulaire (3) le long duquel sont installés à distance lesdits équipements (10, 14, 16, 18), un organe de commande (21) étant introduit dans ledit premier conduit tubulaire (3) et relié en surface par un câble à une de ces extrémités (22), caractérisé en ce que le dispositif comporte en outre des moyens de pompage hydraulique descendant (29) aptes à déplacer ledit organe (21) dans ledit conduit tubulaire (3), des moyens de défilement du câble (22) dans le conduit tubulaire, des moyens de traction (26, 27) sur le câble à partir de la surface et des moyens de commande sélective desdits équipements spécialisés lors du passage de l'organe de commande à l'aplomb desdits équipements en descente ou en remontée.4. - Device for operating specialized intervention equipment (10, 14, 16, 18) in a drilled well having at least one zone strongly deviated from the vertical, said drilled well comprising at least one first tubular conduit (3 ) along which said equipment (10, 14, 16, 18) are installed at a distance, a control member (21) being introduced into said first tubular conduit (3) and connected at the surface by a cable to one of these ends ( 22), characterized in that the device further comprises downward hydraulic pumping means (29) able to move said member (21) in said tubular conduit (3), cable passage means (22) in the tubular conduit , traction means (26, 27) on the cable from the surface and means for selective control of said specialized equipment during the passage of the control member directly above said equipment in descent or ascent. 5. - Dispositif pour manoeuvrer des équipements selon la revendication 4, caractérisé en ce que l'organe de commande (21) comporte sur sa circonférence au moins un pène de clé (37) apte à coopérer avec un siège de manoeuvre (38) d'un équipement spécialisé, de forme complémentaire associé audit pène de clé.5. - Device for operating equipment according to claim 4, characterized in that the control member (21) has on its circumference at least one key bolt (37) adapted to cooperate with an operating seat (38) d '' specialized, complementary equipment associated with said key bolt. 6. - Disposititf pour manoeuvrer des équipements selon la revendication 5, caractérisé en ce qu'il comporte en outre des moyens d'enclenchement (57) dudit pène de clé avec le siège associé dudit équipement (38, 40), des moyens d'entraînement dudit équipement par ledit organe lors de l'enclenchement, et des moyens de dégagement (54, 55) dudit pène de clé une fois la manoeuvre effectuée.6. - Disposititf for operating equipment according to claim 5, characterized in that it further comprises engagement means (57) of said key bolt with the associated seat of said equipment (38, 40), means of drive of said equipment by said member during engagement, and means for disengaging (54, 55) of said key bolt once the operation has been carried out. 7. - Dispositif pour manoeuvrer des équipements selon l'une des revendications 4 à 6, caractérisé en ce que ledit premier conduit étant une colonne tubulaire de commande (3) et les équipements spécialisés étant des vannes de production (10, 14, 16, 18) de fluide de formations géologiques traversées par le puits, le dispositif comporte en outre un second conduit constituant une colonne de production (4) reliée à son extrémité basse avec l'extrémité basse de ladite colonne tubulaire de commande.7. - Device for operating equipment according to one of claims 4 to 6, characterized in that said first conduit being a tubular control column (3) and the specialized equipment being production valves (10, 14, 16, 18) of fluid of geological formations traversed by the well, the device also comprises a second conduit constituting a column of production (4) connected at its lower end with the lower end of said tubular control column. 8. - Dispositif pour manoeuvrer des équipements selon la revendication 7, caractérisé en ce qu'il comporte une pompe (19) disposée dans la colonne de production.8. - Device for operating equipment according to claim 7, characterized in that it comprises a pump (19) disposed in the production column. 9. - Dispositif selon une quelconque des revendications 4 à 8, caractérisé en ce que l'organe de commande (21) comporte des moyens de circulation de fluide au travers de l'organe de commande au-delà d'un certain seuil de traction exercée sur le câble (22), la circulation de fluide au travers de l'organe (21) s'effectuant de la partie supérieure de l'organe relié au câble vers la partie inférieure de l'organe.9. - Device according to any one of claims 4 to 8, characterized in that the control member (21) comprises means for circulating fluid through the control member beyond a certain traction threshold exerted on the cable (22), the circulation of fluid through the member (21) taking place from the upper part of the member connected to the cable to the lower part of the member. 10. - Installation de production de fluide à partir d'une formation géologique traversée par un puits foré comportant un dispositif selon l'une quelconque des revendications 7 à 9, caractérisée en ce que le puits est divisé en plusieurs zones de production (30, 31, 32, 33) séparées et isolées les unes des autres par des moyens d'étanchéïté de type packers (7, 8, 9), au moins une vanne étant disposée au niveau d'une zone de production.10. - Fluid production installation from a geological formation traversed by a drilled well comprising a device according to any one of claims 7 to 9, characterized in that the well is divided into several production zones (30, 31, 32, 33) separated and isolated from each other by packer type sealing means (7, 8, 9), at least one valve being arranged at a production area.
EP88402074A 1987-08-19 1988-08-10 Method and apparatus for driving specialised intervention equipment into a borehole with at least one section strongly inclined relative to the vertical Expired - Lifetime EP0307266B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8711749 1987-08-19
FR8711749A FR2621646B1 (en) 1987-08-19 1987-08-19 PROCESS FOR MANEUVERING AT LEAST ONE DEVICE WITHIN A TUBING AND ASSEMBLY FOR IMPLEMENTING THE PROCESS

Publications (2)

Publication Number Publication Date
EP0307266A1 true EP0307266A1 (en) 1989-03-15
EP0307266B1 EP0307266B1 (en) 1992-04-29

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US (1) US4940094A (en)
EP (1) EP0307266B1 (en)
CA (1) CA1320125C (en)
DE (1) DE3870556D1 (en)
DK (1) DK169879B1 (en)
ES (1) ES2032581T3 (en)
FR (1) FR2621646B1 (en)
IN (1) IN171838B (en)
NO (1) NO300391B1 (en)

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Also Published As

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CA1320125C (en) 1993-07-13
FR2621646B1 (en) 1995-08-25
DK169879B1 (en) 1995-03-20
FR2621646A1 (en) 1989-04-14
ES2032581T3 (en) 1993-02-16
DE3870556D1 (en) 1992-06-04
US4940094A (en) 1990-07-10
NO883644L (en) 1989-02-20
NO883644D0 (en) 1988-08-16
DK463688A (en) 1989-02-20
EP0307266B1 (en) 1992-04-29
IN171838B (en) 1993-01-23
NO300391B1 (en) 1997-05-20
DK463688D0 (en) 1988-08-18

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