CN113494270B - Full-drift-diameter forced opening tool for underground safety valve - Google Patents
Full-drift-diameter forced opening tool for underground safety valve Download PDFInfo
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- CN113494270B CN113494270B CN202010197895.8A CN202010197895A CN113494270B CN 113494270 B CN113494270 B CN 113494270B CN 202010197895 A CN202010197895 A CN 202010197895A CN 113494270 B CN113494270 B CN 113494270B
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- wall
- head end
- assembly
- threaded connection
- sealing
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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-drift diameter forced opening tool for an underground safety valve, wherein the head end of an upper connecting sleeve is in threaded connection with a pressing assembly, the head end outer wall of a 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 protecting sleeve, a rubber cylinder assembly is sleeved outside the central pipe between the tail end of the upper protecting sleeve and the head end of a lower protecting sleeve, a supporting ring is sleeved outside the rubber cylinder assembly, the tail end outer wall of the lower protecting sleeve 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. The tool can open the valve under the condition that any part of the safety valve is not damaged, and the locking ring is convenient to detach, so that the tool is high in universality.
Description
Technical Field
The invention relates to the technical field of oilfield workover devices, in particular to a full-drift-diameter forced opening tool for an underground safety valve.
Background
The underground safety valves are basically installed in each production well of the offshore oil field, under the condition of high pressure, the sealing rings of the underground safety valves are easy to puncture, so that the hydraulic control system is relieved, the underground safety valves are closed and lose the safety protection effect, normal production of the oil field is affected, and steel wire testing and salvaging operation cannot be performed. Under the condition, the valve plate of the underground safety valve can be opened and locked only forcedly, so that the underground safety valve is in a permanent opening state, normal operation of oil gas production is ensured, and the underground safety valve is replaced when the well is to be repaired. Because offshore oil field uses the relief valve of many companies, and each relief valve is equipped with an opening tool, does not possess the commonality between the opening tool, and is higher to the positioning accuracy requirement, and some forced open tools have the risk of destroying the relief valve flow tube in the operation in-process, lead to the unable reuse of relief valve, increase manufacturing cost, perhaps have the difficult scheduling problem of locking ring after forced open tool opens the valve.
Disclosure of Invention
The invention overcomes the defects in the prior art, as the safety valves are various, each safety valve is required to be provided with an opening tool independently, the opening tools have no universality, the requirement on positioning precision is higher, the safety valve cannot be reused because part of the forced opening tools have the risk of damaging the flow tube of the safety valve in the operation process, the production cost is increased, and the full-diameter forced opening tool for the underground safety valve is provided, can be used for opening the valve under the condition of not damaging any part of the safety valve, is convenient to detach and has strong universality.
The aim of the invention is achieved by the following technical scheme.
The full-drift-diameter forced opening tool for the underground safety valve 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 and hermetically connected from top to bottom,
the extrusion supporting assembly comprises an upper connecting sleeve, a central tube, 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 outer wall of the head end of the 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 the upper sheath, a rubber cylinder assembly is sleeved on the outer side of the central tube between the tail end of the upper sheath and the head end of the lower sheath, a supporting ring is sleeved on the outer side of the rubber cylinder assembly, 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 head end of the central tube is provided with a pressure transmission hole for communicating the upper sheath and the rubber cylinder assembly.
The pressing assembly comprises an adjusting rod, a locking sleeve and a piston, wherein 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 piston is installed at the tail end of the adjusting rod through a shear pin, and the piston is used for controlling the opening/closing of a pressing channel.
And a limit nail is further arranged between the upper inner wall of the locking sleeve and the lower outer wall of the adjusting rod.
The sealing connection assembly comprises an upper joint, a sealing assembly and a compression ring, wherein the tail end inner wall of the upper joint is in threaded connection with the head end outer wall of the adjusting rod, a sealing limit step is arranged in the middle of the upper joint, and the sealing assembly is arranged between the sealing limit step and the compression ring.
The sealing assembly comprises an upper baffle ring, V-shaped rings, a lower baffle ring and a spacing ring, wherein the number of the upper baffle ring, the V-shaped rings and the lower baffle ring is 2, and the upper baffle ring, the V-shaped rings, the lower baffle ring, the spacing ring, the upper baffle ring, the V-shaped rings and the lower baffle ring are sequentially arranged from top to bottom.
The beneficial effects of the invention are as follows: the tool can freely adjust the length of the tool through the cooperation of the limiting step, the adjusting rod, the locking sleeve and the limiting nail, so that the supporting ring is accurately positioned at the valve plate; the tool is reasonable in design, any part of the safety valve can not 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 a porous foam metal material, the support ring of the C-shaped ring structure is easy to expand after being extruded, the support ring of the porous foam metal material is stable in shape after expansion, the support ring acts on the valve plate to enable the valve plate to be opened and permanently locked, and the support ring is convenient to detach when the safety valve is used again; the piston of the tool is fixed with the adjusting rod through the shear pin, and after the 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 diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the present invention disposed within an internal structure of a subsurface safety valve, wherein (a) is the upper structure of the subsurface safety valve and (b) is the lower structure of the subsurface safety valve;
FIG. 3 is a schematic diagram of the structure of the subsurface safety valve at the time of normal unlocking, wherein (a) is the upper structure of the subsurface safety valve and (b) is the lower structure of the subsurface safety valve;
in the figure: 1. an upper joint; 2. an upper baffle ring; v-shaped ring; 4. a lower baffle ring; 5. a spacer ring; 6. a compression ring; 7. an adjusting rod; 8. a locking sleeve; 9. a piston; 10. shearing nails; 11. an upper connecting sleeve; 12. a central tube; 13. a jacket is arranged; 14. a rubber cylinder assembly; 15. a support ring; 16. a lower sheath; 17. a lower connecting sleeve; 19. a limit nail; 101. a subsurface safety valve; 102. a valve plate.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
The technical scheme of the invention is further described by specific examples.
Example 1
The full-drift-diameter forced opening tool for the underground safety valve comprises a sealing connection assembly, a pressing assembly and an extrusion supporting assembly which are sequentially connected in a sealing manner 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 head end outer wall of the central tube 12 is in threaded connection with the head end inner wall of the upper connecting sleeve 11, the tail end inner wall of the upper connecting sleeve 11 is in threaded connection with the head end outer wall of the upper sheath 13, a rubber sleeve assembly 14 is sleeved outside 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 outside the rubber sleeve assembly 14, the tail end outer wall of the lower sheath 16 is in threaded connection with the head end inner wall of the lower connecting sleeve 17, and the tail end inner wall of the lower connecting sleeve 17 is in threaded connection with the tail end outer wall 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 pressing assembly comprises an adjusting rod 7, a locking sleeve 8 and a piston 9, wherein 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 part of the locking sleeve 8 is in threaded connection with the outer wall of the lower part of the adjusting rod 7, the piston 9 is arranged 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 a pressing 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, wherein the tail end inner wall of the upper joint 1 is in threaded connection with the head end outer wall of the adjusting rod 7, a sealing limit step is arranged in the middle of the upper joint 1, and the sealing assembly is arranged between the sealing limit step and the pressing ring 6.
The sealing assembly comprises an upper baffle ring 2, a V-shaped ring 3, a lower baffle ring 4 and a spacing ring 5, wherein the number of the upper baffle ring 2, the number of the V-shaped ring 3 and the number of the lower baffle ring 4 are 2, and the upper baffle ring 2, the V-shaped ring 3, the lower baffle ring 4, the spacing 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.
The device is sealed by adopting the sealing ring at all positions in threaded connection, so that the pressure relief problem is avoided when the device is used.
As shown in fig. 2 and 3, the limiting step of the upper joint 1 is matched with the safety valve to limit, the sealing assembly is matched with the sealing cylinder of the safety valve to seal, the adjusting rod 7 and the locking sleeve 8 are used for adjusting the tool length, the limiting nail 19 is used for limiting, the supporting ring 15 is accurately conveyed to the valve plate position of the underground safety valve, the oil pipe is pressurized, fluid enters the cavity in the tool through the pressurizing hole of the upper joint 1, after the pressure reaches a designed value, the shear pin 10 is sheared, the piston 9 moves downwards to form a pressurizing channel, the fluid enters the cavity formed by the upper connecting sleeve 11, the upper jacket 13 and the rubber cylinder assembly 14 through the pressurizing hole of the central tube 12 to continuously pressurize, the rubber cylinder assembly 14 is extruded by the fluid, the rubber cylinder assembly 14 is outwards expanded after being stressed to extrude the supporting ring 15, the supporting ring 15 acts on the valve plate of the safety valve, the valve plate is opened and is permanently locked, the production and testing channel is provided, the pressurizing is performed after the designed time, the rubber cylinder assembly 14 is depressurized, the fluid is separated from the supporting ring 15, and the whole-diameter forced opening tool of the underground safety valve is started, and the supporting ring 15 is left inside the underground safety valve.
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's 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 "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (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 foregoing detailed description of the invention has been presented for purposes of illustration and description, but is not intended to limit the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (6)
1. The utility model provides a full latus rectum forced opening instrument of safety valve in pit which characterized in that: the device 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 mode from top to bottom, the extrusion supporting assembly comprises an upper connecting sleeve, a central tube, an upper sheath, a lower sheath and a lower connecting sleeve, the head end of the upper connecting sleeve is in threaded connection with the pressing assembly, the outer wall of the head end of the 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 the upper sheath, a rubber cylinder assembly is sleeved on the outer side of the central tube between the tail end of the upper sheath and the head end of the lower sheath, a supporting ring is sleeved on 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 central tube is in threaded connection.
2. The tool of claim 1, wherein the tool comprises: and a pressure transmission hole is formed in the head end of the central tube.
3. The tool for forced opening of the full-bore of the subsurface safety valve according to claim 2, wherein: the pressing assembly comprises an adjusting rod, a locking sleeve and a piston, wherein 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 positive opening tool for a subsurface safety valve according to claim 3, wherein: and a limit nail is further arranged between the upper inner wall of the locking sleeve and the lower outer wall of the adjusting rod.
5. A full-bore positive opening tool for a subsurface safety valve according to claim 3, wherein: the sealing connection assembly comprises an upper joint, a sealing assembly and a compression ring, wherein the tail end inner wall of the upper joint is in threaded connection with the head end outer wall of the adjusting rod, a sealing limit step is arranged in the middle of the upper joint, and the sealing assembly is arranged between the sealing limit step and the compression ring.
6. The tool of claim 5, wherein: the sealing assembly comprises an upper baffle ring, V-shaped rings, a lower baffle ring and a spacing ring, wherein the number of the upper baffle ring, the V-shaped rings and the lower baffle ring is 2, and the upper baffle ring, the V-shaped rings, the lower baffle ring, the spacing ring, the upper baffle ring, the V-shaped rings and the lower baffle 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 CN113494270A (en) | 2021-10-12 |
| CN113494270B true 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN113494270B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2389606B (en) * | 2000-12-22 | 2005-06-29 | E2Tech Ltd | Method and apparatus for downhole remedial or repair operations |
| DE112016005583B4 (en) * | 2016-03-11 | 2023-05-25 | Halliburton Energy Services, Inc. | Underground safety valve with permanent element locked in the open position |
-
2020
- 2020-03-19 CN CN202010197895.8A patent/CN113494270B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113494270A (en) | 2021-10-12 |
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