EP0206909A1 - Wire line cutting nipple for drilling, production, logging or performing operations in wells - Google Patents

Wire line cutting nipple for drilling, production, logging or performing operations in wells Download PDF

Info

Publication number
EP0206909A1
EP0206909A1 EP86401283A EP86401283A EP0206909A1 EP 0206909 A1 EP0206909 A1 EP 0206909A1 EP 86401283 A EP86401283 A EP 86401283A EP 86401283 A EP86401283 A EP 86401283A EP 0206909 A1 EP0206909 A1 EP 0206909A1
Authority
EP
European Patent Office
Prior art keywords
cable
jacket
connector
connection
engaged
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
EP86401283A
Other languages
German (de)
French (fr)
Other versions
EP0206909B1 (en
Inventor
Christian Wittrisch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Publication of EP0206909A1 publication Critical patent/EP0206909A1/en
Application granted granted Critical
Publication of EP0206909B1 publication Critical patent/EP0206909B1/en
Expired legal-status Critical Current

Links

Images

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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
    • E21B17/025—Side entry subs
    • 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
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/04—Cutting of wire lines or the like

Definitions

  • the present invention relates to a cable cutter connector which can be incorporated into a pipe in which a cable is engaged, for drilling, production, logging or well operations and allowing, if necessary, cutting the cable at the connector.
  • the cable cutter connection according to the present invention is particularly usable in a drill string comprising a side window connection for the passage of a cable from the inside to the outside of the rods, with hydraulic sealing around the cable.
  • a side window fitting is, for example, used in the technique described in French patent 2,501,777 (EN. 81 / 05.271) and its first two additions EN. 82 / 03.317 and EN. 84 / 08.369.
  • a logging probe or an intervention tool is initially fixed to the lower part of a drill string which is lowered into the well at as it was created.
  • the measurement recording (or intervention in the well) is carried out by moving the entire drill string from the surface.
  • loosening operations or interventions are, for example, the introduction into the rod, from the surface, of specialized tools to be lowered by means of a cable to the area (which is generally located under the inlet fitting lateral) which includes the stems trapped by the formation.
  • These specialized tools can, for example, be an explosive which allows the unscrewing of the stuck rod.
  • An essential object of the invention is to allow, in equipment of the type indicated above, the cutting of the cable just above the load bar.
  • the portion of cable located above the load bar can then be raised to the surface, while the load bar falls by gravity inside the rods.
  • the invention is also applicable in the case of an oil well blowout, when the drill string includes a side entry fitting located under the table. of rotation, this connector serving for the passage of a cable.
  • the invention aims to allow the cable to be cut in the vicinity of the connector with lateral entry, making it possible to reassemble the portion of cable located above this connector before closing the jaws of the safety shutter block around the rods.
  • a cable cutter fitting which can be incorporated into a pipe in which a cable is engaged, for drilling, production, logging or intervention operations. in wells and allowing, if necessary, the cutting of the cable at the connection, this connection comprising a tubular body in which a jacket can slide, characterized in that the side wall of said tubular jacket has an opening in which is engaged a cable sectioning member and in that said jacket is movable from a first position offering a free axial passage to the cable, to a second position in which an internal shoulder of said jacket presses the cable against said sectioning member.
  • Said cable cutting member may comprise a pivoting finger articulated in a housing of the internal wall of the tubular body.
  • the invention relates more particularly to a cable cutter connection as defined above in which said first and second positions of said tubular jacket are respectively constituted by a low position and a high position, characterized in that the jacket has its lower part a restriction of its internal diameter, cooperating with a part fixed to the cable or an excess thickness of the cable below the connector, so as to effect the passage of said jacket from its first position to its second position under the action of a traction directed from the bottom upwards exerted on the cable, this traction carrying out a self-tightening of the cable between said internal shoulder of the jacket and said sectioning member.
  • This embodiment is particularly advantageous.
  • the cable cutter connector comprises a low stop and a high stop for said sleeve, a return spring pushing said sleeve up to its low stop and at least one shearable pin holding said sleeve in its low position.
  • This connection advantageously includes means for guiding the sliding of said jacket, these guide means comprising at least one angular setting finger engaged in a guide groove.
  • the reference 1 designates as a whole the cable cutter connector according to the invention screwed between two tubular elements such as 1a and 1b of the set of figs.
  • Reference 2 designates a cable engaged in the drill string and the lower part of which is terminated by an electrical connector or load bar designated as a whole by reference 4.
  • This cable passes for example from the outside to the inside of the drill string via a side window connector 1 c (Figs 3, 4 and 5) which does not appear in Figures 1 and 2.
  • Cable 2 is, for example, of a type used for logs or interventions carried out according to the technique described in French patent 2,501,777 and its aforementioned additions.
  • the connector 1 comprises a tubular body 3 in which a jacket 5 can slide.
  • the sliding sleeve 5 is movable between two positions defined by respectively high 6 and low 7 stops by being guided by means of a finger 8 secured to the body 1 and engaged in a groove 9. This finger also ensures the rotation setting of the shirt.
  • the jacket 5 is normally at the bottom stop (Fig. 1), pushed back into this position by a spring 10 and held in this position by a pin or shear pin 11. This first position offers a free axial passage to the cable 2.
  • This movement of the arm 16 is produced by that of the jacket 5, during its rise due to the pulling of the cable 2 from the surface.
  • a traction exerted on the cable 2 from the surface causes the safety pin 11 to shear.
  • the jacket 5 then rises, driving the arm 16 which pivots and pushes the cable 2 up to the edge 15 which can be sharp.
  • the jacket 5 goes up to the upper stop, the arm being limited in its movement positioned opposite the projecting rim (second position or upper position illustrated in FIG. 2).
  • the cable 2 is self-clamped between the pivoting arm 16 and the cutting edge 15 until the creation of a breaking point which will cause the cable to break (Fig. 2) and the drop of the load bar.
  • the portion of cable 2 between the cable cutter connection and the surface can be wound on a winch (not shown) located on the surface.
  • the load bar can then be pumped to be moved to the upper end of the drill string.
  • FIGS. 3 to 5 schematically illustrate as examples of implementation several possible arrangements of the cable cutter connector 1 according to the invention in a drill string comprising a connector with lateral entry 19.
  • the reference 1 d designates a safety valve and the reference 1 e a safety connection, these two elements being able to be of known type.
  • Safety fittings of known types have a male-female thread with a pitch different from that used to connect the various elements of the drill string.
  • this special thread will make it possible to unscrew the drill string at the level of this thread only, in order to reassemble the upper part of the drill string comprising the rods 1 a, the lateral inlet connector 1 c, the cable cutter fitting 1 and the upper part of the safety fitting 1 in the example in Figure 5.
  • the safety valve 1 d is generally a ball valve which is manually actuated from the outside.
  • the safety shutter block or B.O.P. is closed. around the rods, then close the safety valve 1 d, in order to safely dismantle the side window connection 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Electric Cable Installation (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Drilling Tools (AREA)

Abstract

Raccord coupe-câble pouvant être incorporé à une conduite de forage dans laquelle est engagé un câble.Ce raccord, permettant, en cas de nécessité, le sectionnement du câble, comporte un corps tubulaire dans lequel peut coulisser une chemise. Il est caractérisé en ce que la paroi latérale de ladite chemise tubulaire (5) présente une ouverture dans laquelle est engagé un organe (16) de sectionnement du câble et en ce que ladite chemise (5) est déplaçable d'une première position (Fig. 1) offrant un libre passage axial au câble (2) une séconde position (Fig. 2) dans laquelle un épaulement interne (15) de ladite chemise (5) appuie le câble (2) contre ledit organe de sectionnement (16).Cable cutter connection which can be incorporated into a drilling pipe in which a cable is engaged. This connection, allowing, if necessary, the cutting of the cable, comprises a tubular body in which a sleeve can slide. It is characterized in that the side wall of said tubular sleeve (5) has an opening in which is engaged a member (16) for cutting the cable and in that said sleeve (5) is movable from a first position (Fig. . 1) offering free axial passage for the cable (2) a second position (Fig. 2) in which an internal shoulder (15) of said sleeve (5) presses the cable (2) against said sectioning member (16).

Description

La présente invention concerne un raccord coupe-câble pouvant être incorporé à une conduite dans laquelle est engagé un câble, en vue d'opérations de forage, de production, de diagraphie ou d'interventions dans des puits et permettant, en cas de nécessité, le sectionnement du câble au niveau du raccord.The present invention relates to a cable cutter connector which can be incorporated into a pipe in which a cable is engaged, for drilling, production, logging or well operations and allowing, if necessary, cutting the cable at the connector.

L'art antérieur peut être illustré par les brevets américains US-A-1.610.699, US-A-1.776.026, US-A-3.661.207, US-A-4.160.478 et US-A-4.427.059.The prior art can be illustrated by American patents US-A-1,610,699, US-A-1,776,026, US-A-3,661.207, US-A-4,160,478 and US-A-4,427,059 .

Le raccord coupe-câble selon la présente l'invention est notamment utilisable dans un train de tiges de forage comprenant un raccord à fenêtre latérale pour le passage d'un câble de l'intérieur vers l'extérieur des tiges, avec étanchéité hydraulique autour du câble.The cable cutter connection according to the present invention is particularly usable in a drill string comprising a side window connection for the passage of a cable from the inside to the outside of the rods, with hydraulic sealing around the cable.

Les reccords àfenêtre latérale (généralement désignés par "Side entry subs" dans l'industrie pétrolière) sont bien connus des spécialistes des forages pétroliers. Un tel dispositif est, par exemple, décrit dans le brevet britannique 2.135.719.Side window fittings (generally referred to as "side entry subs" in the petroleum industry) are well known to specialists in petroleum drilling. Such a device is, for example, described in British patent 2,135,719.

Un raccord à fenêtre latérale est, par exemple, utilisé dans la technique décrite dans le brevet français 2.501.777 (EN. 81/05.271) et ses deux premières additions EN. 82/03.317 et EN. 84/08.369.A side window fitting is, for example, used in the technique described in French patent 2,501,777 (EN. 81 / 05.271) and its first two additions EN. 82 / 03.317 and EN. 84 / 08.369.

Suivant cette technique, permettant d'effectuer des diagraphies ou interventions dans des puits horizontaux ou fortement inclinés, une sonde de diagraphie ou un outil d'intervention est initialement fixé à la partie inférieure d'un train de tiges qui est descendu dans le puits au fur et à mesure de sa constitution.According to this technique, making it possible to carry out logs or interventions in horizontal or strongly inclined wells, a logging probe or an intervention tool is initially fixed to the lower part of a drill string which is lowered into the well at as it was created.

On fait ensuite descendre à l'intérieur des tiges (par gravité et par pompage) un câble électrique muni d'un connecteur lesté (le connecteur est surmonté d'une barre de charge) qui vient se raccorder un connecteur complémentaire fixé au sommet de la sonde (ou de l'outil). Dans la portion du train de tiges correspondant à la partie verticale ou faiblement inclinée du puits, un raccord à fenêtre latérale fait passer le câble de l'intérieur vers l'extérieur des tiges.An electrical cable fitted with a weighted connector (the connector is surmounted by a load bar) is then lowered inside the rods (by gravity and by pumping) which is connected to a complementary connector fixed to the top of the probe (or tool). In the portion of the drill string corresponding to the vertical or slightly inclined part of the well, a side window fitting passes the cable from the interior to the exterior of the rods.

L'enregistrement de la mesure (ou l'intervention dans le puits) est effectué en déplaçant l'ensemble du train de tiges depuis la surface.The measurement recording (or intervention in the well) is carried out by moving the entire drill string from the surface.

Les équipements actuels avec raccord fenêtre latérale posent cependant un problème en cas de coincement du train de tiges dans le puits:

  • En effet, la présence du câble électrique contenu à l'intérieur des tiges dans la partie comprise entre le raccord à fenêtre latrale et la barre de charge ne permet pas d'effectuer des interventions visant à décoincer le train de tiges.
Current equipment with side window connection poses a problem, however, if the drill string is trapped in the well:
  • Indeed, the presence of the electric cable contained inside the rods in the part between the side window connection and the load bar does not allow interventions to loosen the string of rods.

Ces opérations ou interventions de décoincement sont, par exemple, l'introduction dans la tige, depuis la surface, d'outils spécialisés devant être descendus au moyen d'un câble jusqu'à la zone (qui est généralement située sous le raccord à entrée latérale) qui comporte les tiges coincées par la formation.These loosening operations or interventions are, for example, the introduction into the rod, from the surface, of specialized tools to be lowered by means of a cable to the area (which is generally located under the inlet fitting lateral) which includes the stems trapped by the formation.

Ces outils spécialisés peuvent, par exemple, être un explosif qui permet le dévissage de la tige coincée.These specialized tools can, for example, be an explosive which allows the unscrewing of the stuck rod.

Par ailleurs, la présence du câble à l'extérieur du train de tiges, au-dessus du raccord à fenêtre latérale, limite les possibilités de rotation du train de tiges.Furthermore, the presence of the cable outside the drill string, above the side window fitting, limits the possibilities of rotation of the drill string.

Un objet essentiel de l'invention est de permettre, dans un équipement du type indiqué ci-dessus, le sectionnement du câble juste au-dessus de la barre de charge.An essential object of the invention is to allow, in equipment of the type indicated above, the cutting of the cable just above the load bar.

La portion de câble située au-dessus de la barre de charge peut être alors remontée en surface, tandis que la barre de charge tombe par gravité à l'intérieur des tiges.The portion of cable located above the load bar can then be raised to the surface, while the load bar falls by gravity inside the rods.

Elle peut ensuite, si nécessaire, être déplacée par pompage jusqu'à l'extrémité supérieure du train de tiges.It can then, if necessary, be moved by pumping to the upper end of the drill string.

L'invention est également applicable dans le cas d'une éruption de puits pétrolier, lorsque le train de tiges comporte un raccord à entrée latérale situé sous la table. de rotation, ce raccord servant au passage d'un câble.The invention is also applicable in the case of an oil well blowout, when the drill string includes a side entry fitting located under the table. of rotation, this connector serving for the passage of a cable.

Il est en effet nécessaire dans ce cas de pouvoir remonter le câble situé à l'extérieur du train de tiges, au-dessus du raccord à fenêtre latérale, afin de pouvoir commander depuis la surface la fermeture du bloc obturateur de sécurité (B.O.P.) autour des tiges. Dans cette application, l'invention vise à permettre le sectionnement du câble au voisinage du raccord à entrée latérale, permettant de remonter la portion de câble située au-dessus de ce raccord avant de fermer les mâchoires du bloc obturateur de sécurité autour des tiges.It is indeed necessary in this case to be able to reassemble the cable located outside the drill string, above the fitting with side window, in order to be able to control from the surface the closing of the safety shutter block (BOP) around stems. In this application, the invention aims to allow the cable to be cut in the vicinity of the connector with lateral entry, making it possible to reassemble the portion of cable located above this connector before closing the jaws of the safety shutter block around the rods.

Les objectifs indiqués ci-dessus peuvent être atteints selon l'invention, avec un raccord coupe-câble pouvant être incorporé à une conduite dans laquelle est engagé un câble, en vue d'opérations de forage, de production, de diagraphie ou d'interventions dans des puits et permettant, en cas de nécessité, le sectionnement du câble au niveau du raccord, ce raccord comportant un corps tubulaire dans lequel peut coulisser une chemise, caractérisé en ce que la paroi latérale de ladite chemise tubulaire présente une ouverture dans laquelle est engagé un organe de sectionnement du câble et en ce que ladite chemise est déplaçable d'une première position offrant un libre passage axial au câble, à une seconde position dans laquelle un épaulement interne de ladite chemise appuie le câble contre ledit organe de sectionnement.The objectives indicated above can be achieved according to the invention, with a cable cutter fitting which can be incorporated into a pipe in which a cable is engaged, for drilling, production, logging or intervention operations. in wells and allowing, if necessary, the cutting of the cable at the connection, this connection comprising a tubular body in which a jacket can slide, characterized in that the side wall of said tubular jacket has an opening in which is engaged a cable sectioning member and in that said jacket is movable from a first position offering a free axial passage to the cable, to a second position in which an internal shoulder of said jacket presses the cable against said sectioning member.

Ledit organe de sectionnement du câble peut comporter un doigt pivotant articulé dans un logement de la paroi interne du corps tubulaire.Said cable cutting member may comprise a pivoting finger articulated in a housing of the internal wall of the tubular body.

L'invention concerne plus particulièrement un raccord coupe-câble tel que défini ci-dessus dans lequel lesdites première et seconde positions de ladite chemise tubulaire sont respectivement constituées par une position basse et une position haute, caractérisé en ce que la chemise présente sa partie inférieure une restriction de son diamètre interne, coopérant avec une pièce fixée au câble ou une surépaisseur de celui-ci au-dessous du raccord, de façon à réaliser le passage de ladite chemise de sa première position à sa seconde position sous l'action d'une traction dirigée de bas en haut exercée sur le câble, cette traction réalisant un auto-serrage du câble entre ledit épaulement interne de la chemise et ledit organe de sectionnement. Ce mode de réalisation est particulièrement avantageux.The invention relates more particularly to a cable cutter connection as defined above in which said first and second positions of said tubular jacket are respectively constituted by a low position and a high position, characterized in that the jacket has its lower part a restriction of its internal diameter, cooperating with a part fixed to the cable or an excess thickness of the cable below the connector, so as to effect the passage of said jacket from its first position to its second position under the action of a traction directed from the bottom upwards exerted on the cable, this traction carrying out a self-tightening of the cable between said internal shoulder of the jacket and said sectioning member. This embodiment is particularly advantageous.

Selon une variante du mode de réalisation particulièrement avantageuse, le raccord coupe-câble comporte une butée basse et une butée haute pour ladite chemise, un ressort de rappel repoussant ladite chemise jusqu'à sa butée basse et au moins une goupille cisaillable maintenant ladite chemise dans sa position basse.According to a particularly advantageous variant of the embodiment, the cable cutter connector comprises a low stop and a high stop for said sleeve, a return spring pushing said sleeve up to its low stop and at least one shearable pin holding said sleeve in its low position.

Ce raccord comporte avantageusement des moyens de guidage du coulissement de ladite chemise, ces moyens de guidage comportant au moins un doigt de calage angulaire engagé dans une rainure de guidage.This connection advantageously includes means for guiding the sliding of said jacket, these guide means comprising at least one angular setting finger engaged in a guide groove.

Des exemples de réalisation de l'invention sont illustrés par les dessins annexés où :

  • -la figure 1 montre un raccord coupe-câble selon l'invention dans sa position basse,
  • -la figure 2 montre ce raccord placé en position haute sous l'effet d'une traction sur le câble exercée vers le haut,
  • -la figure 2A correspond à la coupe A de la figure 2,
  • -les figures 3, 4 et 5 montrent - schématiquement plusieurs dispositions possibles du raccord coupe-câble selon l'invention dans un train de tiges comportant un raccord à entrée latérale.
Examples of embodiments of the invention are illustrated by the appended drawings in which:
  • FIG. 1 shows a cable cutter connector according to the invention in its low position,
  • FIG. 2 shows this connection placed in the high position under the effect of a pull on the cable exerted upwards,
  • FIG. 2A corresponds to section A of FIG. 2,
  • FIGS. 3, 4 and 5 show - schematically several possible arrangements of the cable cutter connector according to the invention in a drill string comprising a connector with lateral entry.

Sur les figures, la référence 1 désigne dans son ensemble le raccord coupe-câble selon l'invention vissé entre deux éléments tubulaires tels que 1a et 1b du train de figes.In the figures, the reference 1 designates as a whole the cable cutter connector according to the invention screwed between two tubular elements such as 1a and 1b of the set of figs.

La référence 2 désigne un câble engagé dans le train de tiges et dont la partie inférieure est terminée par un connecteur électrique ou barre de charge désignée dans son ensemble par la référence 4. Ce câble passe par exemple de l'extérieur vers l'intérieur du train de tiges par l'intermédiaire d'un raccord à fenête latérale 1 c (Figs 3, 4 et 5) qui n'apparaît pas sur les figures 1 et 2.Reference 2 designates a cable engaged in the drill string and the lower part of which is terminated by an electrical connector or load bar designated as a whole by reference 4. This cable passes for example from the outside to the inside of the drill string via a side window connector 1 c (Figs 3, 4 and 5) which does not appear in Figures 1 and 2.

La câble 2 est, par exemple, d'un type utilisé pour des diagraphies ou interventions réalisées se-Ion la technique décrite dans le brevet français 2.501.777 et ses additions précitées.Cable 2 is, for example, of a type used for logs or interventions carried out according to the technique described in French patent 2,501,777 and its aforementioned additions.

Le raccord 1 comporte un corps tubulaire 3 dans lequel peut coulisser une chemise 5.The connector 1 comprises a tubular body 3 in which a jacket 5 can slide.

La chemise coulissante 5 est déplaçable entre deux positions définies par des butées respectivement haute 6 et basse 7 en étant guidée au moyen d'un doigt 8 solidaire du corps 1 et engagé dans une rainure 9. Ce doigt assure également le calage en rotation de la chemise.The sliding sleeve 5 is movable between two positions defined by respectively high 6 and low 7 stops by being guided by means of a finger 8 secured to the body 1 and engaged in a groove 9. This finger also ensures the rotation setting of the shirt.

La chemise 5 est normalement en butée basse (Fig. 1), repoussée dans cette position par un ressort 10 et maintenue dans cette position par un pion ou goupille cisailtable 11. Cette première posi- fion offre un libre passage axiat au câble 2.The jacket 5 is normally at the bottom stop (Fig. 1), pushed back into this position by a spring 10 and held in this position by a pin or shear pin 11. This first position offers a free axial passage to the cable 2.

La chemise 5 comporte à sa partie inférieure :

  • -une restriction de diamètre 12 jouant le rôle de butée pour la partie de plus grand diamètre 13 surmontant le corps 14 de la barre de charge 4,
  • -un épaulement interne à rebord tranchant en demi cercle 15 sur lequel viendra s'appliquer le câble 2,
  • -un bras ou doigt 16 pivotant autour d'un axe 17 perpendiculaire à l'axe du corps 1 dont l'extrémité 18 opposée à l'axe 17 a la forme d'un demi cercle complémentaire de la forme du rebord 15.
The shirt 5 has at its lower part:
  • a diameter restriction 12 acting as a stop for the part of larger diameter 13 surmounting the body 14 of the load bar 4,
  • an internal shoulder with a cutting edge in a semicircle 15 on which the cable 2 will be applied,
  • an arm or finger 16 pivoting about an axis 17 perpendicular to the axis of the body 1, the end 18 opposite the axis 17 has the shape of a semi-circle complementary to the shape of the rim 15.

Ce bras se déplace entre deux positions dans lesquelles il est respectivement :

  • (a) replié le long du corps (Fig. 1 et
  • (b) incliné dans le prolongement du rebord 15 - (Fig. 2).
This arm moves between two positions in which it is respectively:
  • (a) folded along the body (Fig. 1 and
  • (b) inclined in the extension of the rim 15 - (Fig. 2).

Ce déplacement du bras 16 est produit par celui de la chemise 5, lors de sa remontée due à la traction du câble 2 depuis la surface.This movement of the arm 16 is produced by that of the jacket 5, during its rise due to the pulling of the cable 2 from the surface.

Le fonctionnement de ce raccord est indiqué ci-dessous.The operation of this fitting is shown below.

Une traction exercée sur le câble 2 depuis la surface provoque le cisaillement de la goupille de sécurité 11.A traction exerted on the cable 2 from the surface causes the safety pin 11 to shear.

La chemise 5 remonte alors en entraînant le bras 16 qui pivote et repousse le câble 2 jusqu'au rebord 15 qui peut être tranchant. La chemise 5 va jusqu'à la butée haute, le bras étant limité dans son déplacement positionné en face du rebord saillant (seconde position ou position haute illustrée par la figure 2).The jacket 5 then rises, driving the arm 16 which pivots and pushes the cable 2 up to the edge 15 which can be sharp. The jacket 5 goes up to the upper stop, the arm being limited in its movement positioned opposite the projecting rim (second position or upper position illustrated in FIG. 2).

Sous l'effet de la traction effectuée depuis la surface, le câble 2 est auto-serré entre le bras pivotant 16 et le rebord tranchant 15 jusqu'à la création d'un point de rupture qui va entraîner la rupture du câble (Fig. 2) et la chute de la barre de charge. La portion du câble 2 comprise entre le raccord coupe-câble et la surface pourra être enroulé sur un treuil (non représenté) situé en surface.Under the effect of the traction carried out from the surface, the cable 2 is self-clamped between the pivoting arm 16 and the cutting edge 15 until the creation of a breaking point which will cause the cable to break (Fig. 2) and the drop of the load bar. The portion of cable 2 between the cable cutter connection and the surface can be wound on a winch (not shown) located on the surface.

Si nécessaire, la barre de charge pourra ensuite être pompée pour être déplacée jusqu'à l'extrémité supérieure du train de tiges.If necessary, the load bar can then be pumped to be moved to the upper end of the drill string.

Une fois le câble 2 cassé, le ressort 10 repousse la chemise 5 vers le bas. Dans son déplacement cette chemise entraîne le bras pivotant 16 qui, lorsque la chemise arrive en butée basse, est replié le long du corps 3, dans sa position illustrée par la figure 1.Once the cable 2 is broken, the spring 10 pushes the jacket 5 down. In its movement, this shirt drives the pivoting arm 16 which, when the shirt reaches the bottom stop, is folded along the body 3, in its position illustrated in FIG. 1.

Les figures 3 à 5 illustrent schématiquement à titre d'exemples de mise en oeuvre plusieurs dispositions possibles du raccord coupe-câble 1 selon l'invention dans un train de tiges comportant un raccord à entrée latérale 19.FIGS. 3 to 5 schematically illustrate as examples of implementation several possible arrangements of the cable cutter connector 1 according to the invention in a drill string comprising a connector with lateral entry 19.

Sur les figures 4 et 5, la référence 1 d désigne une vanne de sécurité et la référence 1 e un raccord de sécurité, ces deux éléments pouvant être de type connus.In FIGS. 4 and 5, the reference 1 d designates a safety valve and the reference 1 e a safety connection, these two elements being able to be of known type.

Les raccords de sécurité de types connus comportent un filetage mâle-femelle de pas différent de ceux utilisés pour raccorder les différents éléments du train de tiges.Safety fittings of known types have a male-female thread with a pitch different from that used to connect the various elements of the drill string.

Une fois le câble 2 cisaillé et remonté en surface, ce filetage spécial permettra de dévisser le train de tiges au niveau de ce filetage uniquement, afin de remonter la partie supérieure du train de tiges comportant les tiges 1 a, le raccord d'entrée latéral 1 c, le raccord coupe-câble 1 et la partie supérieure du raccord de sécurité 1 dans l'exemple de la figure 5.Once the cable 2 has been sheared and reassembled on the surface, this special thread will make it possible to unscrew the drill string at the level of this thread only, in order to reassemble the upper part of the drill string comprising the rods 1 a, the lateral inlet connector 1 c, the cable cutter fitting 1 and the upper part of the safety fitting 1 in the example in Figure 5.

Il sera toujours possible de se revisser ensuite sur ce raccord de sécurité 1e avec un train de tiges ne comportant pas le raccord à fenêtre latérale 1c, la vanne de sécurité 1 d et le raccord coupe-câble 1. Le diamètre intérieur du train de tiges devient alors homogène, ce qui permet d'appliquer les procédures connues pour réaliser le décoincement du train de tiges.It will still be possible to screw back on to this safety fitting 1e with a drill string not including the side window fitting 1c, the safety valve 1 d and the cable cutter fitting 1. The inside diameter of the drill string then becomes homogeneous, which makes it possible to apply the known procedures for detaching the drill string.

La vanne de sécurité 1 d est généralement une vanne à boule qui est actionnée manuellement de l'extérieur.The safety valve 1 d is generally a ball valve which is manually actuated from the outside.

En cas d'éruption, après remontée en surface de la partie du train de tiges comprenant le raccord à fenêtre latérale 1c (Fig. 5) on ferme le bloc obturateur de sécurité ou B.O.P. autour des tiges, puis on ferme la vanne de sécurité 1 d, afin de démonter le raccord fenêtre latérale 1 en toute sécurité.In the event of an eruption, after rising to the surface of the part of the drill string comprising the side window connection 1c (Fig. 5), the safety shutter block or B.O.P. is closed. around the rods, then close the safety valve 1 d, in order to safely dismantle the side window connection 1.

On peut alors visser une tête d'injection et faire circuler par pompage un fluide, afin de contrôler l'éruption du puits.We can then screw an injection head and circulate by pumping a fluid, in order to control the eruption of the well.

Claims (5)

1. -Raccord coupe-câble pouvant être incorporé à une conduite dans laquelle est engagé un câble, en vue d'opérations de forage, de production, de diagraphie ou d'interventions dans des puits et permettant, en cas de nécessité, le sectionnement du câble au niveau du raccord, ce raccord comportant un corps tubulaire dans lequel peut coulisser une chemise, caractérisé en ce que la paroi latérale de ladite chemise tubulaire (5) présente une ouverture dans laquelle est engagé un organe de sectionnement du câble (16) et en ce que ladite chemise (5) est déplaçable d'une première position (Fig. 1) offrant un libre passage axial au câble (2) à une seconde position (Fig. 2) dans laquelle un épaulement interne (15) de ladite chemise (5) appuie le câble (2) contre ledit organe de sectionnement (16).1.-Cable cutter connection that can be incorporated into a pipe in which a cable is engaged, for drilling, production, logging or well operations and allowing, if necessary, sectioning of the cable at the connector, this connector comprising a tubular body in which a jacket can slide, characterized in that the side wall of said tubular jacket (5) has an opening in which is engaged a cable cutting member (16) and in that said jacket (5) is movable from a first position (Fig. 1) providing a free axial passage to the cable (2) to a second position (Fig. 2) in which an internal shoulder (15) of said jacket (5) supports the cable (2) against said sectioning member (16). 2. -Raccord coupe-câble selon la revendication 1, caractérisé en ce que ledit organe de sectionnement comporte un doigt pivotant (16) articulé (17) dans un logement de la paroi interne du corps tubulaire.2. -Rope cutter connector according to claim 1, characterized in that said sectioning member comprises a pivoting finger (16) articulated (17) in a housing of the inner wall of the tubular body. 3. -Raccord coupe-câble selon l'une quelconque des revendications 1 et 2, dans lequel lesdites première et seconde positions de ladite chemise tubulaire sont respectivement constituées par une position basse et une position haute, caractérisé en ce que la chemise (5) présente à sa partie inférieure une restriction (12) de son diamètre interne, coopérant avec une pièce fixée au câble (13) ou une surépaisseur de celui-ci au-dessous du raccord, de façon à réaliser le passage de ladite chemise (5) de sa première position à sa seconde position sous l'action d'une traction dirigée de bas en haut exercée sur le câble, cette traction réalisant un auto-serrage du câble entre ledit épaulement interne de la chemise (15) et ledit organe de sectionnement (16).3.-cable cutter connection according to any one of claims 1 and 2, wherein said first and second positions of said tubular jacket are respectively constituted by a low position and a high position, characterized in that the jacket (5) has at its lower part a restriction (12) of its internal diameter, cooperating with a part fixed to the cable (13) or an excess thickness of the latter below the connector, so as to make the passage of said jacket (5) from its first position to its second position under the action of a traction directed from the bottom upwards exerted on the cable, this traction realizing a self-tightening of the cable between said internal shoulder of the jacket (15) and said sectioning member (16). 4. -Raccord coupe-câble selon la revendication 3, caractérisé en ce qu'il comporte une butée basse (7) et une butée haute (6) pour ladite chemise, un ressort de rappel (10) repoussant ladite chemise (5) jusqu'à sa butée basse et au moins une goupille cisaillable (11) maintenant ladite chemise (5) dans sa position basse.4. -Connection cable cutter according to claim 3, characterized in that it comprises a low stop (7) and a high stop (6) for said shirt, a return spring (10) pushing said shirt (5) up 'at its low stop and at least one shear pin (11) holding said jacket (5) in its low position. 5. -Raccord coupe-câble selon l'une des revendications précédentes, caractérisé en ce qu'il comporte des moyens de guidage du coulissement de ladite chemise (5), ces moyens de guidage comportant au moins un doigt de calage angulaire (8) engagé dans une rainure de guidage5. -Connection cable cutter according to one of the preceding claims, characterized in that it comprises means for guiding the sliding of said jacket (5), these guide means comprising at least one angular setting finger (8) engaged in a guide groove
EP86401283A 1985-06-14 1986-06-13 Wire line cutting nipple for drilling, production, logging or performing operations in wells Expired EP0206909B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8509199 1985-06-14
FR8509199A FR2583457B1 (en) 1985-06-14 1985-06-14 CABLE-CUTTING CONNECTION FOR DRILLING, PRODUCTION, LOGGING OR INTERVENTION IN WELLS.

Publications (2)

Publication Number Publication Date
EP0206909A1 true EP0206909A1 (en) 1986-12-30
EP0206909B1 EP0206909B1 (en) 1988-09-21

Family

ID=9320347

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86401283A Expired EP0206909B1 (en) 1985-06-14 1986-06-13 Wire line cutting nipple for drilling, production, logging or performing operations in wells

Country Status (6)

Country Link
US (1) US4738312A (en)
EP (1) EP0206909B1 (en)
CA (1) CA1301641C (en)
DE (1) DE3660778D1 (en)
FR (1) FR2583457B1 (en)
NO (1) NO174170C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2367577A (en) * 2000-10-06 2002-04-10 Baker Hughes Inc Hydraulic wireline cutter
CN111215562A (en) * 2018-11-23 2020-06-02 中国石油天然气股份有限公司 Steel wire cutting device

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO310714B1 (en) * 1998-11-18 2001-08-20 Mechlift As Feed system for a stretch line compensator
NO991967D0 (en) 1999-04-26 1999-04-26 Subsurface Technology As Procedure for generating counterclockwise forces to position breaches of hydraulic and electrical wires slidingly attached along a production pipe
US6789627B2 (en) * 2000-05-15 2004-09-14 Schlumberger Technology Corporation Control line cutting tool and method
US7264060B2 (en) * 2003-12-17 2007-09-04 Baker Hughes Incorporated Side entry sub hydraulic wireline cutter and method
US7114563B2 (en) * 2004-04-16 2006-10-03 Rose Lawrence C Tubing or drill pipe conveyed downhole tool system with releasable wireline cable head
NO323513B1 (en) * 2005-03-11 2007-06-04 Well Technology As Device and method for subsea deployment and / or intervention through a wellhead of a petroleum well by means of an insertion device
US7422055B2 (en) * 2005-07-12 2008-09-09 Smith International, Inc. Coiled tubing wireline cutter
US7963319B2 (en) * 2009-01-08 2011-06-21 Weatherford/Lamb, Inc. Downhole cable gripping/shearing device
NO2771537T3 (en) * 2011-10-27 2018-07-21
CN102400673B (en) * 2011-11-25 2014-10-15 中国石油天然气股份有限公司 Cable quick joint catches nipple joint
CN102397961B (en) * 2011-11-25 2013-11-13 新疆塔里木油田建设工程有限责任公司 Logging cable shears
US8899330B2 (en) 2012-06-29 2014-12-02 Baker Hughes Incorporated Devices and methods for severing a tube-wire
WO2014008260A1 (en) * 2012-07-02 2014-01-09 Schlumberger Canada Limited Method and apparatus for tool retrieval
US9376294B2 (en) 2012-08-04 2016-06-28 Absolute Oilfield Equipment, LLC Brake, shear and cable management system and method
WO2015048002A1 (en) * 2013-09-25 2015-04-02 G&H Diversified Manufacturing, Lp Cable head with cable shear mechanism and methods related thereto
US9476276B2 (en) * 2013-09-25 2016-10-25 G&H Diversified Manufacturing, Lp Method for installing and operating a cable head with cable shear mechanism for wireline cable supporting oilfield equipment in a wellbore
CN104708650A (en) * 2015-03-11 2015-06-17 大庆金祥寓科技有限公司 Perforated cable cutter
US11560766B2 (en) 2020-02-28 2023-01-24 Impact Selector International, Llc Downhole conveyance line cutter
US20230101912A1 (en) * 2021-09-29 2023-03-30 Jon Randall Rasmussen Electrical Connection Assembly for Downhole Wireline
US20230115354A1 (en) * 2021-09-29 2023-04-13 Jon Randall Rasmussen Mechanical Release Tool for Downhole Wireline

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1610699A (en) * 1924-02-25 1926-12-14 Titusville Forge Company Rope knife
US1776026A (en) * 1928-10-22 1930-09-16 Frank J Hinderliter Knife for use in wells
US3661207A (en) * 1970-11-27 1972-05-09 Camco Inc Sliding sleeve assembly for a hydraulically set well packer
US4160478A (en) * 1977-04-25 1979-07-10 Otis Engineering Corporation Well tools
US4427059A (en) * 1981-12-30 1984-01-24 Olivier Eric J Wire line cutter apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1018274A (en) * 1911-04-03 1912-02-20 Walter J Sheehan Cable and wire cutter.
US1608313A (en) * 1923-08-17 1926-11-23 John T Helbert Cable cutter for fishing tools
US3020957A (en) * 1958-07-11 1962-02-13 Jersey Prod Res Co Apparatus for removing sand from wells
FR2581699B1 (en) * 1985-05-13 1988-05-20 Inst Francais Du Petrole ROD TRAIN EQUIPMENT, SUCH AS A DRILL ROD TRAIN, COMPRISING A SIDE WINDOW CONNECTION FOR THE PASSAGE OF A CABLE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1610699A (en) * 1924-02-25 1926-12-14 Titusville Forge Company Rope knife
US1776026A (en) * 1928-10-22 1930-09-16 Frank J Hinderliter Knife for use in wells
US3661207A (en) * 1970-11-27 1972-05-09 Camco Inc Sliding sleeve assembly for a hydraulically set well packer
US4160478A (en) * 1977-04-25 1979-07-10 Otis Engineering Corporation Well tools
US4427059A (en) * 1981-12-30 1984-01-24 Olivier Eric J Wire line cutter apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2367577A (en) * 2000-10-06 2002-04-10 Baker Hughes Inc Hydraulic wireline cutter
GB2367577B (en) * 2000-10-06 2004-04-07 Baker Hughes Inc Hydraulic wireline cutter
US6763753B1 (en) 2000-10-06 2004-07-20 Baker Hughes Incorporated Hydraulic wireline cutter
US6805197B2 (en) 2000-10-06 2004-10-19 Baker Hughes Incorporated Hydraulic wireline cutter
CN111215562A (en) * 2018-11-23 2020-06-02 中国石油天然气股份有限公司 Steel wire cutting device

Also Published As

Publication number Publication date
FR2583457A1 (en) 1986-12-19
NO862354D0 (en) 1986-06-12
NO862354L (en) 1986-12-15
CA1301641C (en) 1992-05-26
DE3660778D1 (en) 1988-10-27
US4738312A (en) 1988-04-19
EP0206909B1 (en) 1988-09-21
FR2583457B1 (en) 1988-05-20
NO174170B (en) 1993-12-13
NO174170C (en) 1994-03-23

Similar Documents

Publication Publication Date Title
EP0206909B1 (en) Wire line cutting nipple for drilling, production, logging or performing operations in wells
EP0202151B1 (en) Apparatus for a drill pipe or the like, comprising a side entry sub for a cable
EP0122839B1 (en) Method and apparatus for conducting logging and/or work-over operations in a borehole
EP0526293B1 (en) Method and device for carrying out measurements and/or interventions in a drilled well or while drilling
FR2654462A1 (en) METHOD AND APPARATUS FOR ESTABLISHING COMMUNICATION WITH A BACKGROUND TRUNCON OF SURVEYING A CONTROL FLUID CONDUIT.
EP0187599B1 (en) Apparatus driven by hydraulic pressure for conducting logging and work-over operations in a deviated well during injection or production
EP0132423B1 (en) Borehole logging and work-over method and apparatus
FR2679958A1 (en) SYSTEM, SUPPORT FOR PERFORMING MEASUREMENTS OR INTERVENTIONS IN A WELL BORE OR DURING DRILLING, AND USES THEREOF.
FR2655127A1 (en)
FR2653199A1 (en) FLUID FLOW CONTROL VALVE IN A FLUID TRANSPORT DUCT IN A UNDERGROUND WELL AND METHOD FOR OPERATING A WELL BOTTOM VALVE.
CA1320125C (en) Process and apparatus for handling/steering at least one device within a well casing
FR2523637A1 (en) RETRACTABLE FLOWER GUIDE FOR DRILLING AND BOLTING SLIDERS
EP0052672B1 (en) Method for recovering a retrievable core receiver in upward drilling and a recovery head for this purpose
EP0150643B1 (en) Safety valve, in particular to close an oil-well
FR2509366A1 (en) DEVICE FOR CONTROLLING A TOOL FOR CLOSING THE COLUMN FOR PRODUCING A WELL
EP0211725B1 (en) Device for positioning a tool in a drain pipe of a drilled well
EP0192558A1 (en) Apparatus for positioning a tool or instrument in a flow line, particularly a down-hole autonomous hydraulic pump operating through the tubing in a well
FR2688263A1 (en) METHOD AND DEVICE FOR HANGING AND UNCHANGING A REMOVABLE ASSEMBLY SUSPENDED FROM A CABLE, ON A DOWNHOLE ASSEMBLY PLACED IN AN OIL WELLBORE.
EP0517329A1 (en) Hollow auger for casting piles in situ, and drilling device including at least two such augers
FR2564893A2 (en) METHOD AND DEVICE FOR PERFORMING, WITH SPECIALIZED TOOLS, OPERATIONS SUCH AS MEASUREMENTS, IN VERTICALLY TILTED VERTICAL OR HORIZONTAL WELL PORTIONS.
EP1205629A2 (en) Method and device for securing an oil well in the event of a defect in the hydraulic control line of its downhole safety valve
CA1152892A (en) Connecting/deconnecting device between a first rigid riser with a self aligning mounting on a base and a second rigid conduit mounted on the same base
EP0484218B1 (en) Work-over device for non eruptive deviated wells
FR2564894A2 (en) Method and device enabling measurements and/or operations to be carried out in a well
FR2486143A1 (en) Closing tool for petroleum winning drill hole - where tool has valve body closed by sliding sleeve to block drill hole

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT NL

17P Request for examination filed

Effective date: 19870318

17Q First examination report despatched

Effective date: 19871117

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT NL

REF Corresponds to:

Ref document number: 3660778

Country of ref document: DE

Date of ref document: 19881027

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950517

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19950629

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950721

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960613

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19970101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960613

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970301

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050613