CN113494270A - Full-bore forced opening tool for underground safety valve - Google Patents
Full-bore forced opening tool for underground safety valve Download PDFInfo
- Publication number
- CN113494270A CN113494270A CN202010197895.8A CN202010197895A CN113494270A CN 113494270 A CN113494270 A CN 113494270A CN 202010197895 A CN202010197895 A CN 202010197895A CN 113494270 A CN113494270 A CN 113494270A
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- wall
- assembly
- ring
- threaded connection
- head end
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention provides a full-bore forced opening tool for an underground safety valve, wherein the head end of an upper connecting sleeve is in threaded connection with a pressurizing assembly, the outer wall of the head end of a central tube is in threaded connection with the inner wall of the head end of the upper connecting sleeve, the inner wall of the tail end of the upper connecting sleeve is in threaded connection with the outer wall of the head end of an upper sheath, the outer side of the central tube between the tail end of the upper sheath and the head end of a lower sheath is sleeved with a rubber cylinder assembly, the outer side of the rubber cylinder assembly is sleeved with a support ring, the outer wall of the tail end of the lower sheath is in threaded connection with the inner wall of the head end of the lower connecting sleeve, and the inner wall of the tail end of the lower connecting sleeve is in threaded connection with the outer wall of the tail end of the central tube. The tool can be used for opening the valve under the condition that any part of the safety valve is not damaged, the locking ring is convenient to detach, and the universality is high.
Description
Technical Field
The invention relates to the technical field of oil field well repairing devices, in particular to a full-drift-diameter forced opening tool for an underground safety valve.
Background
The underground safety valve is basically installed in each production well of the offshore oil field, the sealing ring is easy to puncture under the high-pressure condition of the underground safety valve, the pressure of a hydraulic control system is relieved, the underground safety valve is closed and loses the safety protection effect, the normal production of the oil well is influenced, and the steel wire test and fishing operation cannot be carried out. Under the condition, the valve plate of the underground safety valve can only be forcibly opened and locked, so that the underground safety valve is in a permanent opening state to ensure the normal production of oil and gas and replace the underground safety valve when well repair operation is to be carried out. Because offshore oil field uses the relief valve of many companies, and every relief valve is equipped with an opener, does not possess the commonality between the opener, and is higher to positioning accuracy requirement, and some strong opening tools have the risk of destroying the safety valve flow pipe in the operation process, leads to the relief valve to use once more, increases manufacturing cost, or has the difficult scheduling problem of dismantling of locked ring after opening the valve by force again.
Disclosure of Invention
The invention overcomes the defects in the prior art, the safety valves are various, each safety valve needs to be provided with an opening tool independently, the opening tools are not universal, the requirement on positioning precision is higher, the risk of damaging a flow pipe of the safety valve exists in the operation process of part of forced opening tools, the safety valves cannot be reused, the production cost is increased, and the full-diameter forced opening tool for the underground safety valves can be used for opening the valves without damaging any parts of the safety valves, and the locking ring is convenient to detach and strong in universality.
The purpose of the invention is realized by the following technical scheme.
A full-bore forced opening tool for an underground safety valve comprises a sealing connection assembly, a pressurizing assembly and an extrusion support assembly, wherein the sealing connection assembly, the pressurizing assembly and the extrusion support assembly are sequentially connected in a sealing manner from top to bottom,
the extrusion support assembly comprises an upper connecting sleeve, a central pipe, an upper sheath, a lower sheath and a lower connecting sleeve, wherein the head end of the upper connecting sleeve is in threaded connection with the pressing assembly, the head end outer wall of the central pipe is in threaded connection with the head end inner wall of the upper connecting sleeve, the tail end inner wall of the upper connecting sleeve is in threaded connection with the head end outer wall of the upper sheath, the tail end of the upper sheath is in threaded connection with the central pipe outside between the head ends of the lower sheath, a rubber sleeve assembly is sleeved on the outer side of the rubber sleeve assembly, a supporting ring is sleeved on the outer side of the lower sheath, the tail end outer wall of the lower sheath is in threaded connection with the head end inner wall of the lower connecting sleeve, and the tail end inner wall of the lower connecting sleeve is in threaded connection with the tail end outer wall of the central pipe.
And the head end of the central tube is provided with a pressure transfer hole for communicating the upper sheath with the rubber cylinder assembly.
The pressurizing assembly comprises an adjusting rod, a locking sleeve and a piston, the outer wall of the head end of the adjusting rod is in threaded connection with the sealing connection assembly, the inner wall of the upper portion of the locking sleeve is in threaded connection with the outer wall of the lower portion of the adjusting rod, the tail end of the adjusting rod is installed through a shear pin, and the piston is used for controlling the pressurizing channel to be opened or closed.
And a limit nail is also arranged between the inner wall of the upper part of the locking sleeve and the outer wall of the lower part of the adjusting rod.
The sealing connection assembly comprises an upper joint, a sealing assembly and a compression ring, the inner wall of the tail end of the upper joint is in threaded connection with the outer wall of the head end of the adjusting rod, a sealing limiting step is arranged in the middle of the upper joint, and the sealing assembly is installed between the sealing limiting step and the compression ring.
The sealing assembly comprises an upper blocking ring, a V-shaped ring, a lower blocking ring and a spacer ring, wherein the number of the upper blocking ring, the number of the lower blocking ring and the number of the lower blocking ring are 2, and the upper blocking ring, the V-shaped ring, the lower blocking ring, the spacer ring, the upper blocking ring, the V-shaped ring and the lower blocking ring are sequentially arranged from top to bottom.
The invention has the beneficial effects that: the tool can freely adjust the length of the tool through the matching of the limiting step, the adjusting rod, the locking sleeve and the limiting nail, so that the support ring is accurately positioned at the valve plate; the tool is reasonable in design, any part of the safety valve cannot be damaged in the process of opening the valve plate by the forced opening tool, and the safety valve can be directly used again; the support ring of the tool adopts a C-shaped ring structure and porous foam metal materials, the support ring of the C-shaped ring structure is easy to expand after being extruded, the shape of the support ring made of the porous foam metal materials is stable after the support ring is expanded, the support ring acts on the valve plate to open and permanently lock the valve plate, and the support ring is convenient to disassemble when the safety valve is used again; a piston of the tool is fixed with the adjusting rod through a shear pin, after an oil pipe is pressed to reach a design value, the shear pin is sheared off, and the piston moves downwards.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the safety valve of the present invention placed in a well, wherein (a) is the upper structure of the safety valve and (b) is the lower structure of the safety valve;
FIG. 3 is a schematic structural diagram of a normal unlocking timing of the downhole safety valve, wherein (a) is an upper structure of the downhole safety valve, and (b) is a lower structure of the downhole safety valve;
in the figure: 1. an upper joint; 2. an upper baffle ring; 3, a V-shaped ring; 4. a lower baffle ring; 5. a spacer ring; 6. pressing a ring; 7. adjusting a rod; 8. a locking sleeve; 9. a piston; 10. shearing the nails; 11. connecting sleeves are arranged; 12. a central tube; 13. putting a sheath; 14. a rubber cylinder assembly; 15. a support ring; 16. a lower sheath; 17. a lower connecting sleeve; 19. a limit pin; 101. a downhole safety valve; 102. a valve plate.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
The technical solution of the present invention is further illustrated by the following specific examples.
Example one
A full-bore forced opening tool for an underground safety valve comprises a sealing connection assembly, a pressurizing assembly and an extrusion support assembly, wherein the sealing connection assembly, the pressurizing assembly and the extrusion support assembly are sequentially connected in a sealing way from top to bottom,
the extrusion support assembly comprises an upper connecting sleeve 11, a central tube 12, an upper sheath 13, a lower sheath 16 and a lower connecting sleeve 17, wherein the head end of the upper connecting sleeve 11 is in threaded connection with the pressing assembly, the outer wall of the head end of the central tube 12 is in threaded connection with the inner wall of the head end of the upper connecting sleeve 11, the inner wall of the tail end of the upper connecting sleeve 11 is in threaded connection with the outer wall of the head end of the upper sheath 13, a rubber sleeve assembly 14 is sleeved on the outer side of the central tube 12 between the tail end of the upper sheath 13 and the head end of the lower sheath 16, a support ring 15 is sleeved on the outer side of the rubber sleeve assembly 14, the outer wall of the tail end of the lower sheath 16 is in threaded connection with the inner wall of the head end of the lower connecting sleeve 17, and the inner wall of the tail end of the lower connecting sleeve 17 is in threaded connection with the outer wall of the tail end of the central tube 12.
The head end of the central tube 12 is provided with a pressure transmission hole for communicating the upper sheath 13 and the rubber cylinder assembly 14.
Example two
On the basis of the first embodiment, the pressurizing assembly comprises an adjusting rod 7, a locking sleeve 8 and a piston 9, the outer wall of the head end of the adjusting rod 7 is in threaded connection with the sealing connection assembly, the inner wall of the upper portion of the locking sleeve 8 is in threaded connection with the outer wall of the lower portion of the adjusting rod 7, the piston 9 is installed at the tail end of the adjusting rod 7 through a shear pin 10, and the piston 9 is used for controlling the opening/closing of the pressurizing channel.
A limit nail 19 is also arranged between the upper inner wall of the locking sleeve 8 and the lower outer wall of the adjusting rod 7.
EXAMPLE III
On the basis of the second embodiment, the sealing connection assembly comprises an upper joint 1, a sealing assembly and a pressing ring 6, the inner wall of the tail end of the upper joint 1 is in threaded connection with the outer wall of the head end of the adjusting rod 7, a sealing limiting step is arranged in the middle of the upper joint 1, and the sealing assembly is arranged between the sealing limiting step and the pressing ring 6.
The seal assembly comprises an upper baffle ring 2, a V-shaped ring 3, a lower baffle ring 4 and a spacer ring 5, wherein the number of the upper baffle ring 2, the V-shaped ring 3 and the lower baffle ring 4 is 2, and the upper baffle ring 2, the V-shaped ring 3, the lower baffle ring 4, the spacer ring 5, the upper baffle ring 2, the V-shaped ring 3 and the lower baffle ring 4 are sequentially arranged from top to bottom.
Everywhere of this device threaded connection all adopts the sealing washer to seal it to take place the pressure release problem when using.
As shown in fig. 2 and 3, the limit step of the upper joint 1 is matched with the safety valve for limiting, the sealing assembly is matched with a sealing cylinder of the safety valve for sealing, the adjusting rod 7 and the locking sleeve 8 are used for adjusting the length of the tool, the limit nail 19 is used for limiting, the support ring 15 is accurately sent to the valve plate position of the downhole safety valve, the oil pipe is pressed, fluid enters the inner cavity of the tool through the pressing hole of the upper joint 1, the shear nail 10 is sheared after the pressure reaches the designed value, the piston 9 moves downwards to form a pressing channel, the fluid enters the cavity formed by the upper connecting sleeve 11, the upper sheath 13 and the rubber cylinder assembly 14 through the pressing hole of the central pipe 12 and continues to be pressed, the fluid presses the rubber cylinder assembly 14, the rubber cylinder assembly 14 expands outwards after being stressed to press the support ring 15, the support ring 15 acts on the valve plate of the safety valve to open and permanently lock the valve plate, a production and test channel is provided, and releasing pressure after the pressure reaches the design time, contracting the rubber sleeve assembly 14 to separate from the contact with the support ring 15, and leaving the support ring 15 in the underground safety valve after the underground safety valve full-bore forced opening tool is started.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The present invention has been described in detail, but the above description is only a preferred embodiment of the present invention, and is not to be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. The utility model provides a full latus rectum of relief valve in pit forces opening instrument which characterized in that: comprises a sealing connection assembly, a pressing assembly and an extrusion supporting assembly, wherein the sealing connection assembly, the pressing assembly and the extrusion supporting assembly are sequentially connected in a sealing way from top to bottom,
the extrusion support assembly comprises an upper connecting sleeve, a central pipe, an upper sheath, a lower sheath and a lower connecting sleeve, wherein the head end of the upper connecting sleeve is in threaded connection with the pressing assembly, the head end outer wall of the central pipe is in threaded connection with the head end inner wall of the upper connecting sleeve, the tail end inner wall of the upper connecting sleeve is in threaded connection with the head end outer wall of the upper sheath, the tail end of the upper sheath is in threaded connection with the central pipe outside between the head ends of the lower sheath, a rubber sleeve assembly is sleeved on the outer side of the rubber sleeve assembly, a supporting ring is sleeved on the outer side of the lower sheath, the tail end outer wall of the lower sheath is in threaded connection with the head end inner wall of the lower connecting sleeve, and the tail end inner wall of the lower connecting sleeve is in threaded connection with the tail end outer wall of the central pipe.
2. The full-bore forced opening tool for a downhole safety valve according to claim 1, wherein: and the head end of the central pipe is provided with a pressure transmission hole.
3. The full-bore forced opening tool for a downhole safety valve according to claim 2, wherein: the pressing assembly comprises an adjusting rod, a locking sleeve and a piston, the outer wall of the head end of the adjusting rod is in threaded connection with the sealing connection assembly, the inner wall of the upper portion of the locking sleeve is in threaded connection with the outer wall of the lower portion of the adjusting rod, and the piston is installed at the tail end of the adjusting rod through a shear pin.
4. A full-bore forced opening tool for a downhole safety valve according to claim 3, wherein: and a limit nail is also arranged between the inner wall of the upper part of the locking sleeve and the outer wall of the lower part of the adjusting rod.
5. The full-bore forced opening tool for a downhole safety valve according to claim 2, wherein: the sealing connection assembly comprises an upper joint, a sealing assembly and a compression ring, the inner wall of the tail end of the upper joint is in threaded connection with the outer wall of the head end of the adjusting rod, a sealing limiting step is arranged in the middle of the upper joint, and the sealing assembly is installed between the sealing limiting step and the compression ring.
6. The full-bore forced opening tool for a downhole safety valve according to claim 5, wherein: the sealing assembly comprises an upper blocking ring, a V-shaped ring, a lower blocking ring and a spacer ring, wherein the number of the upper blocking ring, the number of the lower blocking ring and the number of the lower blocking ring are 2, and the upper blocking ring, the V-shaped ring, the lower blocking ring, the spacer ring, the upper blocking ring, the V-shaped ring and the lower blocking ring are sequentially arranged from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010197895.8A CN113494270B (en) | 2020-03-19 | 2020-03-19 | Full-drift-diameter forced opening tool for underground safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010197895.8A CN113494270B (en) | 2020-03-19 | 2020-03-19 | Full-drift-diameter forced opening tool for underground safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113494270A true CN113494270A (en) | 2021-10-12 |
| CN113494270B CN113494270B (en) | 2023-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010197895.8A Active CN113494270B (en) | 2020-03-19 | 2020-03-19 | Full-drift-diameter forced opening tool for underground safety valve |
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| Country | Link |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040074640A1 (en) * | 2000-12-22 | 2004-04-22 | Anderton David Andrew | Method and apparatus |
| CN202165038U (en) * | 2011-07-08 | 2012-03-14 | 湖南唯科拓石油科技服务有限公司 | Tool for fault treatment of underground safety valve |
| CN205117286U (en) * | 2015-11-16 | 2016-03-30 | 中国海洋石油总公司 | Forcefully opening tool for subsurface safety valve |
| US20180334883A1 (en) * | 2016-03-11 | 2018-11-22 | Halliburton Energy Services, Inc. | Subsurface safety valve with permanent lock open feature |
| CN208669270U (en) * | 2018-08-06 | 2019-03-29 | 惟其信石油机械(天津)有限公司 | A kind of underground locking opener |
| CN208934656U (en) * | 2018-06-28 | 2019-06-04 | 托普威尔石油技术股份公司 | A kind of self-locking storm valve opening tool |
| CN209855751U (en) * | 2019-04-15 | 2019-12-27 | 上海优强石油科技有限公司 | Safety valve forced opening tool |
-
2020
- 2020-03-19 CN CN202010197895.8A patent/CN113494270B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040074640A1 (en) * | 2000-12-22 | 2004-04-22 | Anderton David Andrew | Method and apparatus |
| CN202165038U (en) * | 2011-07-08 | 2012-03-14 | 湖南唯科拓石油科技服务有限公司 | Tool for fault treatment of underground safety valve |
| CN205117286U (en) * | 2015-11-16 | 2016-03-30 | 中国海洋石油总公司 | Forcefully opening tool for subsurface safety valve |
| US20180334883A1 (en) * | 2016-03-11 | 2018-11-22 | Halliburton Energy Services, Inc. | Subsurface safety valve with permanent lock open feature |
| CN208934656U (en) * | 2018-06-28 | 2019-06-04 | 托普威尔石油技术股份公司 | A kind of self-locking storm valve opening tool |
| CN208669270U (en) * | 2018-08-06 | 2019-03-29 | 惟其信石油机械(天津)有限公司 | A kind of underground locking opener |
| CN209855751U (en) * | 2019-04-15 | 2019-12-27 | 上海优强石油科技有限公司 | Safety valve forced opening tool |
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| Publication number | Publication date |
|---|---|
| CN113494270B (en) | 2023-05-09 |
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