CN107829710A - A kind of ring-type valve plate type downhole safety device - Google Patents
A kind of ring-type valve plate type downhole safety device Download PDFInfo
- Publication number
- CN107829710A CN107829710A CN201710822108.2A CN201710822108A CN107829710A CN 107829710 A CN107829710 A CN 107829710A CN 201710822108 A CN201710822108 A CN 201710822108A CN 107829710 A CN107829710 A CN 107829710A
- Authority
- CN
- China
- Prior art keywords
- ring
- main body
- sealing
- safety device
- valve plate
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 82
- 238000002627 tracheal intubation Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 9
- 230000008520 organization Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- 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
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Display Devices Of Pinball Game Machines (AREA)
Abstract
A kind of ring-type valve plate type downhole safety device, including main body, the upper cover above main body and the lower cover below main body are disclosed herein；The main body is provided with hollow channel and the interior sealing through hollow channel is intubated, and the top of interior sealing intubation is used to connect oil pick-up tube, and the bottom of interior sealing intubation is used for the pump barrel for connecting oil pipe column bottom；The endoporus set in interior sealing intubation forms the individual transmission passage between pump barrel and oil pick-up tube.The application relates to, but are not limited to offshore oil exploitation technology, can effectively overcome defect present in prior art using the application, and downhole fluid still can be returned out controlledly when can realize the interior placement sucker rod of oil pipe or little oil pipe.
Description
Technical field
The application relates to, but are not limited to offshore oil exploitation technology, especially a kind of ring-type valve plate type downhole safety device.
Background technology
Related regulations are produced according to national marine Oil Safety, offshore gas well, flowing well, the well that overflows certainly should install underground envelope
Every device；Below 30 meters of sea bed face, storm valve should be installed, prevent downhole fluid surprisingly on return to ocean platform and ocean
Environment damages.
At present, the platform of some large-scale cement spud leg formulas comes into operation, and because platform space becomes much larger, much there is bar
Pump, as belt oil pumping machine or chain type oil pump are applied to offshore platform successively；In addition, the oil recovery skill that some tubing strings are more complicated
Art, as Concentric tube jet pump oil recovery technique will also be applied to offshore platform.
However, these oil recovery techniques will generally place sucker rod or little oil pipe in oil pipe, this will result directly in existing skill
Storm valve in art due to valve plate by sucker rod or little oil pipe stop and job failure, normally can not open and close
Close.
The content of the invention
The technical problem that the application solves is to provide a kind of ring-type valve plate type downhole safety device, can effectively overcome existing
Defect present in technology, downhole fluid still can be returned controlledly when can realize the interior placement sucker rod of oil pipe or little oil pipe
Go out.
In order to solve the above technical problems, this application provides a kind of ring-type valve plate type downhole safety device, including main body, position
Upper cover above main body and the lower cover below main body；
The main body is provided with hollow channel and the interior sealing through hollow channel is intubated, and the top of interior sealing intubation is used
In connection oil pick-up tube, the bottom of interior sealing intubation is used for the pump barrel for connecting oil pipe column bottom；Set in interior sealing intubation interior
Hole forms the individual transmission passage between pump barrel and oil pick-up tube.
Above-mentioned ring-type valve plate type downhole safety device, can also feature specific as follows,
The upper cover is internally provided with the central tube for being set in interior sealing intubation outside, between the upper cover and central tube
Ring-shaped cavity form the second annular channel for sucker rod pump oil-gas transportation；Multiple ducts are offered in the main body, it is described
The top in duct connects with second annular channel, the stopple plugging machine being internally provided with for blocking duct bottom of the lower cover
Structure；
The plugging mechanism is connected with controlling organization, and the controlling organization is used for the opening and envelope for controlling plugging mechanism
Conversion between stifled state.
Above-mentioned ring-type valve plate type downhole safety device, can also feature specific as follows,
The plugging mechanism includes the cone inside the lower cover, and the top end face of the cone is male cone (strobilus masculinus), the main body
Bottom interior edge be inner conical surface, the duct bottom is located in inner conical surface, the cone match between the male cone (strobilus masculinus) and inner conical surface
For forming conical surface sealing structure.
Above-mentioned ring-type valve plate type downhole safety device, can also feature specific as follows,
The plugging mechanism also includes spring and the centering ring being set on the outside of cone, and the lower cover is internally provided with ring
Shape step surface, the top of the spring contact with centering ring, and the bottom of the spring contacts with the annular step surface of lower cover, described
The bottom of cone is inserted into the center-aisle of annular step surface.
Above-mentioned ring-type valve plate type downhole safety device, can also feature specific as follows,
The controlling organization includes the plunger shaft being opened in main body and the plunger piston being arranged on inside plunger shaft, described
The bottom of plunger piston is connected with centering ring, and the top of the plunger shaft is provided with the hydraulic control connector connected with liquid controling pipe line.
Above-mentioned ring-type valve plate type downhole safety device, can also feature specific as follows,
The upper oil pipe of top connection of the upper cover, the bottom of the upper cover is set on the top outer of the main body；Institute
The top for stating lower cover is set on the bottom outer of the main body, the lower oil pipe of bottom connection of the lower cover.
Above-mentioned ring-type valve plate type downhole safety device, can also feature specific as follows,
It is tubing round thread connection between the upper cover and upper oil pipe, between the lower cover and lower oil pipe；The upper cover with
It is that sealing is threadedly coupled between main body, between the lower cover and main body.
Above-mentioned ring-type valve plate type downhole safety device, can also feature specific as follows,
The bottom of the central tube and the top interior edge of main body connect, and the top of the interior sealing intubation is through central tube
Inside is simultaneously connected with oil pick-up tube, and sealing surface is provided between the interior sealing intubation and central tube.
Above-mentioned ring-type valve plate type downhole safety device, can also feature specific as follows,
The outer sheath of the interior sealing intubation is provided with sealing piston, and the side wall of sealing piston is provided with annular seal pocket, ring
Sealing ring is provided with shape seal groove, the sealing ring is used to form the sealing surface between the interior sealing intubation and central tube.
Above-mentioned ring-type valve plate type downhole safety device, can also feature specific as follows,
The top of the plunger piston is provided with plunger piston sealing.
The application above-mentioned technical proposal has the advantages that：
Compared to prior art, ring-type valve plate type downhole safety device provided by the invention can be applied to sucker rod pump or same
Heart pipe jet pump, the problem of safety device can not use on sucker rod pump or Concentric tube jet pump under existing well can be avoided；Separately
Outside, downhole safety device provided by the invention allows to place sucker rod or little oil pipe in valve body, so as to ensure that downhole fluid is taken out
Draw to ground, the i.e. operation of safety device and do not interfere with the normal production of sucker rod；In addition, ought in case of emergency it lead to
Cut-out ground hydraulic-control line pressure is crossed, in time safety device under closed-in well, prevent to return on downhole fluid, protection offshore platform is set
Standby, safety and marine environment.
Other features and advantage will illustrate in the following description, also, partly become from specification
Obtain it is clear that or being understood by implementing the embodiment of the present invention.The purpose of the application and other advantages can be by illustrating
Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used for providing further understanding technical scheme, and a part for constitution instruction, with this
The embodiment of application is used for the technical scheme for explaining the application together, does not form the limitation to technical scheme.
Fig. 1 is the application state schematic diagram of the present invention；
Fig. 2 be the present invention in off position when overall structure diagram；
Fig. 3 is the structural representation of present invention the latter half in opening；
Fig. 4 is the structural representation of main body in the present invention；
Fig. 5 is the assembling schematic diagram of plunger piston in the present invention, cone, centering ring and spring；
Fig. 6 is the assembling schematic diagram of members in the present invention；
Fig. 7 is the close-up schematic view that interior sealing is intubated piston seal in the present invention；
Fig. 8 A are the schematic diagram that present invention well fluids downhole in opening flows through top half of the present invention；
Fig. 8 B are the schematic diagram that present invention well fluids downhole in opening flows through the latter half of the present invention；
Fig. 9 A be the present invention in off position when well fluids downhole flow through the schematic diagram of top half of the present invention；
Fig. 9 B be the present invention in off position when well fluids downhole flow through the schematic diagram of the latter half of the present invention；
Reference：
1- lower covers；2- cones；3- main bodys；4- springs；5- centering rings；6- interior sealings are intubated；7- central tubes；8- upper covers；9-
Hydraulic control connector；100- endoporus；The first annular runners of 101-；102- ducts；The annular channels of 103- second；11- plunger pistons；
11A- plunger pistons seal；12- plunger shafts；13- sealing screw threads III；14- sucker rods；The upper oil pipes of 15-；Oil pipe under 16-；17- oil
Pipe screw thread；18- liquid controling pipe lines；19- downhole safety devices；22- male cone (strobilus masculinus)s；25- offshore platforms；26- oil pipe columns；27- pump barrels；
28- packers；29- well heads；31- inner conical surfaces；62- sealing pistons；62A- sealing rings；63- sealing screw threads II；71- horn mouths；
81- sealing screw threads I.
Embodiment
Embodiments herein is described in detail below in conjunction with accompanying drawing.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
As shown in figure 1, the application scenarios of ring-type valve plate type downhole safety device provided by the invention.When offshore platform 25 is adopted
When being recovered the oil with sucker rod pump or Concentric tube jet pump, ring-type valve plate type downhole safety device 19 provided by the invention is positioned over oil pipe
On tubing string 26, its corresponding well depth typically requires to be less than 30 meters of seabed；Wherein, sucker rod 14 or little oil pipe may pass through the present invention and carry
The ring-type valve plate type downhole safety device 19 and packer 28 of confession finally reach pump barrel 27, sucker rod pump or Concentric tube jet pump
Can normally work, fluid can on return at well head 29；When running into emergency, can be supplied by cutting off the pressure of liquid controling pipe line 18
Should, so as to close downhole safety device 19 provided by the invention, prevent from oil pipe column 26 returning on fluid is surprisingly, can effectively protect
Protect platform personnel and equipment safety.
The technology of the embodiment of the present invention is further illustrated below by the concrete composition of ring-type valve plate type downhole safety device
Scheme.
Embodiment one：
As shown in Fig. 2 the embodiment of the present invention one provides a kind of ring-type valve plate type downhole safety device, including main body 3, position
Upper cover 8 above main body 3 and the lower cover 1 positioned at the lower section of main body 3.
Main body 3 is provided with hollow channel and the interior sealing through hollow channel is intubated 6, and the top of interior sealing intubation 6 is used
In connection oil pick-up tube 14, the bottom of interior sealing intubation 6 is used for the pump barrel 27 for connecting oil pipe column bottom；Set in interior sealing intubation 6
The endoporus 100 put, using the teaching of the invention it is possible to provide to the individual transmission passage between pump barrel 27 and oil pick-up tube 14, to ensure the normal of oil pick-up tube 14
Operation.
The bottom of upper cover 8 can be set on the top outer of main body 3, and the top of upper cover 8 can connect oil pipe 15, upper cover 8
Inside may be provided with central tube 7, the ring-shaped cavity between upper cover 8 and central tube 7 is the second annular channel 103, the second annular
Runner 103 is the oil-gas transportation passage of sucker rod pump.The bottom of central tube 7 is connected with the top interior edge of main body 3, interior sealing intubation 6
Top can run through central tube 7 inside and connected with oil pick-up tube；There is sealing surface between central tube 7 and interior sealing intubation 6, with
Effectively prevent the exploitation oil gas of sucker rod pump through being returned on the ring-shaped cavity between central tube 7 and interior sealing intubation 6.
The top of lower cover 1 can be set on the bottom outer of main body 3, and the bottom of lower cover 1 can connect lower oil pipe 16, lower cover 1
Ring-shaped cavity between interior sealing intubation 6 is the oil-gas transportation passage of sucker rod pump.Multiple ducts 102, hole are offered in main body 3
The second annular channel 103 formed between the top in road 102 and central tube 7 and upper cover 8 connects；Lower cover 1 is internally provided with use
Plugging mechanism in the closure bottom of duct 102.
In concrete operations, when above-mentioned plugging mechanism is in opening, oil gas can be between lower cover 1 and interior sealing intubation 6
Ring-shaped cavity smoothly enter the bottom in duct 102, and the top through duct 102 is flow in the second annular channel 103, you can real
The oil gas of existing sucker rod pump normally conveys operation.When above-mentioned plugging mechanism is in sealed condition, the bottom in duct 102 is in closure shape
State, oil gas can be rested in the ring-shaped cavity between lower cover 1 and interior sealing intubation 6, can effectively avoid the oil under emergency case
Unexpected generation is returned on gas, being capable of effectively protecting platform personnel and equipment safety.
With reference to shown in Fig. 3, Fig. 4, Fig. 5, in the present embodiment, plugging mechanism includes the cone 2 inside lower cover 1, cone 2
Top end face is male cone (strobilus masculinus) 22, and the bottom interior edge of main body 3 is inner conical surface 31, and the conical surface between above-mentioned male cone (strobilus masculinus) 22 and inner conical surface 31 is matched somebody with somebody
Close and may make up conical surface sealing structure；The bottom in above-mentioned duct 102 is located in inner conical surface 31, and above-mentioned conical surface seal mechanism can have
The bottom in effect closure duct 102；Above-mentioned male cone (strobilus masculinus) 22 is preferably smooth metal conical surface with inner conical surface 31, to form corresponding gold
Belong to conical surface sealing structure, can effectively ensure that the stability of conical surface sealing structure.
Further, plugging mechanism also includes spring 4 and is set in the centering ring 5 in the outside of cone 2, and the inside of lower cover 1 is set
Annular step surface is equipped with, the top of spring 4 contacts with centering ring 5, and the bottom of spring 4 contacts with the annular step surface of lower cover 1；Cone
The bottom of body 2 can be plugged into the center-aisle of annular step surface.The original state of spring 4 can be pressured state, i.e. spring 4
Top centering ring 5 and cone 2 are jacked up upwards, and the male cone (strobilus masculinus) 22 of cone 2 is firmly resisted against on inner conical surface 31, duct
102 be sealed condition.When centering ring 5 is acted on down by ambient pressure, the spring 4 positioned at the lower section of centering ring 5 compresses, while cone 2
Bottom continue to be downwardly into the center-aisle of annular step surface, the male cone (strobilus masculinus) 22 of cone 2 is separated from inner conical surface 31, duct
102 can turn on.
In the present embodiment, plugging mechanism is also connected with controlling organization, and above-mentioned controlling organization is used for the unlatching for controlling plugging mechanism
Conversion between state and sealed condition.Controlling organization includes the plunger shaft 12 being opened in main body 3 and is arranged on plunger shaft 12
Internal plunger piston 11, the top of plunger piston 11 are provided with plunger piston sealing 11A, the bottom of plunger piston and centering ring
5 connections, the pressure change on the top of plunger piston can be exchanged into moving up and down for plunger piston, and then centering ring 5 can be driven to enter
Row moves up and down operation accordingly, finally to realize effective control of the unlatching of plugging mechanism or sealed condition.
As shown in fig. 6, offering 1~2 plunger shaft 12 in main body 3, the bottom of plunger piston 11 is provided with keyway；Keyway with
Centering ring 5 can realize easily attended operation；The top of above-mentioned plunger shaft 12 can be provided with hydraulic control connector 9, the energy of hydraulic control connector 9
It is attached with liquid controling pipe line 18；Pass through the control operation of liquid controling pipe line 18, you can the pressure control operations in plunger shaft are realized,
And then can realize plunger piston 11 moves up and down control operation.
As shown in fig. 7, the outer sheath of above-mentioned interior sealing intubation 6 is provided with sealing piston 62, the side wall of sealing piston 62 is set
There is annular seal pocket, sealing ring 62A is provided with annular seal pocket；Above-mentioned sealing ring 62A can form interior sealing intubation 6 with
The effective sealing for the first annular runner 101 that heart pipe 7 is formed, can effectively avoid the exploitation oil gas of sucker rod pump through central tube 7 with
Returned on ring-shaped cavity between interior sealing intubation 6.In the present embodiment, the top of central tube 7 is provided with horn mouth 71, above-mentioned loudspeaker
The setting of mouth 71 can be advantageous to the insertion operation of sealing piston 62.
1~8 duct 102 is uniformly offered in the present embodiment, in main body 3, the axis in duct 102 is preferably parallel to main body
3 axis.
In the present embodiment, the top of upper cover 8 is connected by tubing round thread 17 with upper oil pipe 15, the bottom of upper cover 8 and the top of main body 3
Connected by sealing screw thread I 81；The bottom of central tube 7 is connected with the top of main body 3 by sealing screw thread II 63；The top of lower cover 1 with
The bottom of main body 3 is connected by sealing screw thread III 13, and the bottom of lower cover 1 is connected also by tubing round thread 17 with lower oil pipe 16, interior close
Envelope intubation 6 is connected by the attachment structure of tubing round thread with sucker rod 14.
The course of work for the ring-type valve plate type downhole safety device that the present invention improves is as follows：
When the sucker rod pump or Concentric tube jet pump of offshore platform normally produce, ring-type valve plate type underground provided by the invention
Safety device 19, as shown in Fig. 8 A~8B, the plunger piston 11 in main body 3 produces work under the pressure supply of liquid controling pipe line 18
Thrust is filled in, cone 2 is promoted and compression spring 4 moves down, now the ring-type male cone (strobilus masculinus) 22 on the top of cone 2 and the bottom of main body 3
Ring-type inner conical surface 31 separates, and duct 102 is in the conduction state；Due to the sealing function by sealing piston 62, gas stream can not
The first annular runner 101 being made up of interior sealing intubation 6 with central tube 7 continues up flowing, can only pass through the hole in main body 3
Road 102 flow to the second annular channel 103, and continues up flowing by the second annular channel 103, eventually arrives at well head.
When offshore platform runs into emergency, supplied by cutting off the pressure of liquid controling pipe line 18, close well provided by the invention
Lower safety device 19, now the flow of fluid in valve body is as follows, as shown in Fig. 9 A~9B, due to being intubated piston 62 by interior sealing
Sealing function, gas stream can not by interior sealing be intubated 6 with central tube 7 form first annular runners 101 continue up stream
It is dynamic；Simultaneously as liquid controling pipe line 18 is cut off, the plunger piston 11 in main body 3 loses piston thrust, resilience of the cone 2 in spring 4
Moved up under power, until the ring-type male cone (strobilus masculinus) 22 and the ring-type inner conical surface 31 of the bottom of main body 3 on the top of cone 2 are bonded to each other, realization is bored
In face of the metal sealing of the conical surface, now duct 102 is in sealed condition, gas stream also can not by the duct 102 in main body 3 to
Upper flowing；Therefore, the oil gas runner now in oil pipe column 26 is completely severed, hydrocarbon fluidses can not on return, so as to reach
The purpose of protecting platform equipment, personal security and marine environment.
It should be noted that no matter ring-type valve plate type downhole safety device 19 provided by the invention be in open mode or
It is closed, does not influence the normal work of sucker rod pump or Concentric tube jet pump.
Ring-type valve plate type downhole safety device provided by the invention can be applied to sucker rod pump or Concentric tube jet pump, can
Avoid the problem of safety device can not use on sucker rod pump or Concentric tube jet pump under existing well；It is in addition, provided by the invention
Ring-type valve plate type downhole safety device allows to place sucker rod or little oil pipe in valve body, and allows sucker rod to pump,
So as to ensure that downhole fluid is pumped into ground, i.e. the operation of safety device does not interfere with the normal production of sucker rod；In addition,
When in case of emergency, by cutting off ground hydraulic-control line pressure, safety device under closed-in well, prevents downhole fluid in time
On return, protection offshore platform equipment, safety and marine environment.
In the description of the present application, term " setting ", " connected ", " connection ", " fixation " etc. all should be interpreted broadly, example
Such as, " connection " can be fixedly connected or be detachably connected, or be integrally connected；Can be joined directly together, can also
It is indirectly connected by intermediary.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in this application.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that specific features, structure, material or the feature that the embodiment or example describe are contained in the application
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode combines.
Although those skilled in the art should be understood that embodiment disclosed by the embodiment of the present invention as above, described
Content be only the embodiment that readily appreciates the embodiment of the present invention and use, be not limited to the embodiment of the present invention.It is any
Technical staff in art of the embodiment of the present invention, in the premise for not departing from the spirit and scope disclosed by the embodiment of the present invention
Under, any modification and change, but the scope of patent protection of the embodiment of the present invention can be carried out in the form and details of implementation,
Still it should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of ring-type valve plate type downhole safety device, it is characterised in that upper cover and position including main body, above main body
Lower cover below main body；
The main body is provided with hollow channel and the interior sealing through hollow channel is intubated, and the top of interior sealing intubation is used to connect
Logical oil pick-up tube, the bottom of interior sealing intubation are used for the pump barrel for connecting oil pipe column bottom；The endoporus structure set in interior sealing intubation
Into the individual transmission passage between pump barrel and oil pick-up tube.
2. ring-type valve plate type downhole safety device according to claim 1, it is characterised in that
The upper cover is internally provided with the central tube for being set in interior sealing intubation outside, the ring between the upper cover and central tube
Shape cavity forms the second annular channel for sucker rod pump oil-gas transportation；Multiple ducts, the duct are offered in the main body
Top connected with second annular channel, the plugging mechanism being internally provided with for blocking duct bottom of the lower cover；
The plugging mechanism is connected with controlling organization, and the controlling organization is used for opening and the closure shape for controlling plugging mechanism
Conversion between state.
3. ring-type valve plate type downhole safety device according to claim 2, it is characterised in that
The plugging mechanism includes the cone inside the lower cover, and the top end face of the cone is male cone (strobilus masculinus), the bottom of the main body
End interior edge is inner conical surface, and the duct bottom is located in inner conical surface, and the cone match between the male cone (strobilus masculinus) and inner conical surface is used for
Form conical surface sealing structure.
4. ring-type valve plate type downhole safety device according to claim 3, it is characterised in that
The plugging mechanism also includes spring and the centering ring being set on the outside of cone, and the lower cover is internally provided with annular table
Terrace, the top of the spring contact with centering ring, and the bottom of the spring contacts with the annular step surface of lower cover, the cone
Bottom be inserted into the center-aisle of annular step surface.
5. ring-type valve plate type downhole safety device according to claim 4, it is characterised in that
The controlling organization includes the plunger shaft being opened in main body and the plunger piston being arranged on inside plunger shaft, the column
The bottom of piston is connected with centering ring, and the top of the plunger shaft is provided with the hydraulic control connector connected with liquid controling pipe line.
6. according to any described ring-type valve plate type downhole safety device in claim 1-5, it is characterised in that
The upper oil pipe of top connection of the upper cover, the bottom of the upper cover is set on the top outer of the main body；Under described
The top of cover is set on the bottom outer of the main body, the lower oil pipe of bottom connection of the lower cover.
7. ring-type valve plate type downhole safety device according to claim 6, it is characterised in that
It is tubing round thread connection between the upper cover and upper oil pipe, between the lower cover and lower oil pipe；The upper cover and main body
Between, between the lower cover and main body be that sealing is threadedly coupled.
8. according to any described ring-type valve plate type downhole safety device in claim 2-5, it is characterised in that
The bottom of the central tube and the top interior edge of main body connect, and the inside of central tube is run through on the top of the interior sealing intubation
And connected with oil pick-up tube, it is provided with sealing surface between the interior sealing intubation and central tube.
9. ring-type valve plate type downhole safety device according to claim 8, it is characterised in that
The outer sheath of the interior sealing intubation is provided with sealing piston, and the side wall of sealing piston is provided with annular seal pocket, and ring-type is close
Sealing ring is provided with sealing groove, the sealing ring is used to form the sealing surface between the interior sealing intubation and central tube.
10. ring-type valve plate type downhole safety device according to claim 5, it is characterised in that
The top of the plunger piston is provided with plunger piston sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710822108.2A CN107829710B (en) | 2017-09-12 | 2017-09-12 | Annular valve plate type underground safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710822108.2A CN107829710B (en) | 2017-09-12 | 2017-09-12 | Annular valve plate type underground safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107829710A true CN107829710A (en) | 2018-03-23 |
| CN107829710B CN107829710B (en) | 2019-12-06 |
Family
ID=61643791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710822108.2A Active CN107829710B (en) | 2017-09-12 | 2017-09-12 | Annular valve plate type underground safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107829710B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086947A (en) * | 2017-11-27 | 2018-05-29 | 中国海洋石油集团有限公司 | For the downhole safety instrument of concentric tube column |
| CN111101893A (en) * | 2019-12-28 | 2020-05-05 | 中海油能源发展股份有限公司 | Safety valve of underground oil well pump |
| CN112302545A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Downhole small tubing device and tubing string |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4470464A (en) * | 1980-07-17 | 1984-09-11 | Baldenko Dmitry F | Valve means |
| WO2000043634A2 (en) * | 1999-01-26 | 2000-07-27 | Schlumberger Technology Corporation | Method and apparatus for formation isolation in a well |
| CN2448924Y (en) * | 2000-06-20 | 2001-09-19 | 中国航天科技集团公司第四研究院第四十一所 | Downhole autoamtic control liquid sampling valve |
| CN2476640Y (en) * | 2001-04-23 | 2002-02-13 | 王佐 | Underground plugging device |
| CN102635329A (en) * | 2012-03-30 | 2012-08-15 | 西南石油大学 | Novel double-seal arrow-shaped check valve |
| CN104533335A (en) * | 2014-12-16 | 2015-04-22 | 中国海洋石油总公司 | Integrated oil and gas reservoir protection tool assembly |
| CN105696964A (en) * | 2015-09-28 | 2016-06-22 | 梁伟成 | Blowout prevention protection packer |
| CN106460484A (en) * | 2013-11-19 | 2017-02-22 | 瑟瑞恩派特石油代理服务有限公司 | Check valve with inertial mass for progressive cavity pumps |
| CN106703771A (en) * | 2017-01-16 | 2017-05-24 | 丹东纳泰石油机械有限公司 | Lifting device for petroleum production vane pump of petroleum well |
-
2017
- 2017-09-12 CN CN201710822108.2A patent/CN107829710B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4470464A (en) * | 1980-07-17 | 1984-09-11 | Baldenko Dmitry F | Valve means |
| WO2000043634A2 (en) * | 1999-01-26 | 2000-07-27 | Schlumberger Technology Corporation | Method and apparatus for formation isolation in a well |
| CN2448924Y (en) * | 2000-06-20 | 2001-09-19 | 中国航天科技集团公司第四研究院第四十一所 | Downhole autoamtic control liquid sampling valve |
| CN2476640Y (en) * | 2001-04-23 | 2002-02-13 | 王佐 | Underground plugging device |
| CN102635329A (en) * | 2012-03-30 | 2012-08-15 | 西南石油大学 | Novel double-seal arrow-shaped check valve |
| CN106460484A (en) * | 2013-11-19 | 2017-02-22 | 瑟瑞恩派特石油代理服务有限公司 | Check valve with inertial mass for progressive cavity pumps |
| CN104533335A (en) * | 2014-12-16 | 2015-04-22 | 中国海洋石油总公司 | Integrated oil and gas reservoir protection tool assembly |
| CN105696964A (en) * | 2015-09-28 | 2016-06-22 | 梁伟成 | Blowout prevention protection packer |
| CN106703771A (en) * | 2017-01-16 | 2017-05-24 | 丹东纳泰石油机械有限公司 | Lifting device for petroleum production vane pump of petroleum well |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086947A (en) * | 2017-11-27 | 2018-05-29 | 中国海洋石油集团有限公司 | For the downhole safety instrument of concentric tube column |
| CN108086947B (en) * | 2017-11-27 | 2020-04-17 | 中国海洋石油集团有限公司 | Downhole safety tool for concentric tubing strings |
| CN112302545A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Downhole small tubing device and tubing string |
| CN112302545B (en) * | 2019-07-29 | 2023-01-31 | 中国石油化工股份有限公司 | Underground small oil pipe device and pipe column |
| CN111101893A (en) * | 2019-12-28 | 2020-05-05 | 中海油能源发展股份有限公司 | Safety valve of underground oil well pump |
| CN111101893B (en) * | 2019-12-28 | 2021-12-14 | 中海油能源发展股份有限公司 | Safety valve of underground oil well pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107829710B (en) | 2019-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102979495B (en) | Many bunches of Limited entry fracturing tubing strings of open-hole horizontal well and fracturing process thereof | |
| CN207017952U (en) | A kind of new regulatable underground gas-liquid separation lifting technology tubing string in sea | |
| CN101864921A (en) | Well completion and oil production string of horizontal well and well completion and oil production processes thereof | |
| CN109736737B (en) | Method for snubbing tripping of reservoir gas drilling well | |
| CN207080207U (en) | A kind of oil field is every excavating technology tubing string | |
| CN201241664Y (en) | Pipe column for jet pump oil extraction and water injection integrated process | |
| CN201778730U (en) | Vertical subsea production tree | |
| CN101975041B (en) | Well cementing method for avoiding coal bed and device thereof | |
| CN104141470A (en) | Pore-forming and sealing method for hydraulic fracturing borehole casing section in underground coal mine | |
| CN107829710A (en) | A kind of ring-type valve plate type downhole safety device | |
| CN105804680A (en) | Under-pressure well repairing working device and method of oil-gas field | |
| CN110107251A (en) | A kind of frac-pack crossover tool | |
| US10036226B2 (en) | Early production system for deep water application | |
| CN205605156U (en) | Workover device is pressed in oil gas field area | |
| CN107023259B (en) | A kind of well system based on double-wall drill pipe | |
| CN105545264B (en) | A kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string | |
| CN209163779U (en) | A kind of hydraulic packing linker | |
| CN217925808U (en) | Horizontal well sectional profile control tubular column system | |
| GB2588029A (en) | Annular controlled safety valve system and method | |
| US20180258730A1 (en) | Integrated rotating control device and gas handling system for a marine drilling system | |
| CN206487435U (en) | The totally-enclosed brill plug device of high pressure shallow-layer | |
| CN206329307U (en) | New water injection through tubing and casing back flushing packer | |
| CN212958583U (en) | Layered gas injection and layered fracturing pipe column | |
| CN206158663U (en) | Minor diameter double -piston ground liquid accuse compression packer | |
| CN202338290U (en) | Gas lifting and completion Integrated tubular column with dual packers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: China Oilfield Services Limited Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant before: China National Offshore Oil Corporation Applicant before: China Oilfield Services Limited |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |