CN113863889A - A general pilot production instrument for oil reservoir shutoff - Google Patents
A general pilot production instrument for oil reservoir shutoff Download PDFInfo
- Publication number
- CN113863889A CN113863889A CN202111132396.1A CN202111132396A CN113863889A CN 113863889 A CN113863889 A CN 113863889A CN 202111132396 A CN202111132396 A CN 202111132396A CN 113863889 A CN113863889 A CN 113863889A
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- ring
- protective sheath
- central tube
- tube
- packing element
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims abstract description 47
- 238000012856 packing Methods 0.000 claims abstract description 45
- 238000004804 winding Methods 0.000 claims abstract description 8
- 230000006978 adaptation Effects 0.000 claims description 8
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006386 memory function Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- 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
-
- 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
- E21B47/00—Survey of boreholes or wells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Geophysics (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of oilfield instruments and discloses a general pilot production tool for oil layer plugging, which comprises an upper joint, a first central pipe, a second central pipe and a lower joint, wherein the middle part of the bottom of the upper joint is connected with one end of the first central pipe, and the other end of the first central pipe is movably connected with the second central pipe. This a general trial production instrument for oil reservoir shutoff, through the setting of each part among the protective structure, the rotation of gear can drive the rotation wheel of being connected with it and rotate, the rotation of rotating the wheel makes the stay cord winding of being connected with it take turns to or take turns the separation with rotating, the stay cord winding is when rotating on taking turns, stay cord pulling protective sheath removes, the protective sheath can separate with the packing element gradually, the compression of the packing element of being convenient for, otherwise, the stay cord is less than the resilience force of spring to the pulling force of protective sheath and pushes away the thrust of protective sheath, the resilience force of spring promotes the protective sheath and removes, the protective sheath can remove the outside to the packing element, protect the packing element.
Description
Technical Field
The invention relates to the technical field of oil field instruments, in particular to a general trial production tool for plugging an oil layer.
Background
The pilot production is a whole working process for further evaluating the economy of reserves, exploring the main process of oil and gas exploitation and determining a development scheme after the pilot production and before the development scheme is determined, dynamic parameters of reservoirs such as yield, pressure, liquidity and the like are obtained for a long time by a certain technical method for a single well, the pilot production is the continuation of the pilot production and is an important link for connecting exploration and development work, and packers are needed to separate mutually influenced oil layers in the pilot production process of an oil field, so that the purposes of mutual independence, mutual noninterference and respective best effort among the layers are achieved.
The structure of the packer generally comprises a setting mechanism, a rubber cylinder assembly and a central tube, wherein a setting piston is arranged in the setting mechanism, a setting hole is arranged on the central tube corresponding to the setting piston, when setting is carried out, pressure is applied to the central tube, the pressure is transmitted to a pressure bearing surface of the setting piston through the setting hole, so that the setting piston is pushed to move, the setting mechanism is started, and then acting force is applied to the rubber cylinder in the rubber cylinder assembly, the rubber cylinder deforms and expands outwards under the action of the acting force, so that the packing effect of the packer is completed, however, the rubber cylinder of the packer is subjected to friction and scraping with a well wall after entering a well, early damage is formed, after the rubber cylinder is extruded and reaches a certain pressure, the rubber cylinder breakage phenomenon easily occurs, the using effect of the packer is influenced, and the resilience of the rubber cylinder is reduced due to deformation caused by the fracturing of the rubber cylinder, when the packer is used for deblocking, the rubber sleeve scrapes the well wall easily, so that the rubber sleeve is seriously damaged, and subsequent underground operation can be influenced.
Disclosure of Invention
Aiming at the defects of the conventional trial production tool for plugging an oil layer, the invention provides the general trial production tool for plugging the oil layer, which has the advantages that a protection structure is arranged outside a rubber cylinder, the rubber cylinder can be prevented from rubbing with a well wall in the moving process in the well, the service life of the rubber cylinder is prolonged, and the like, and the problems in the background art are solved.
The invention provides the following technical scheme: a general pilot production tool for plugging an oil layer comprises an upper joint, a first central tube, a second central tube and a lower joint, wherein the middle part of the bottom of the upper joint is connected with one end of the first central tube, the other end of the first central tube is movably connected with the second central tube, the other end of the second central tube is movably connected with the top end of an inner cavity of the lower joint, the outer ring of the bottom end of the first central tube and the outer ring of the top end of the second central tube are both movably connected with fixing rings, the two fixing rings are connected through a rubber tube, the outer ring of the top end of the first central tube and the outer ring of the bottom end of the second central tube are both connected with a toothed ring, the outer rings of the first central tube and the second central tube are both provided with protection structures, each protection structure comprises a limiting ring and a protection sleeve, the limiting ring is positioned on the inner sides of the toothed ring and the fixing rings, and the fixing rings are in contact with one end of the limiting ring, the other end of spacing ring evenly is equipped with the gear, gear and ring gear meshing, the other end swing joint of gear has the rotation wheel, the outer lane winding of rotating the wheel has the stay cord, the protective sheath has been cup jointed in the outer lane activity of spacing ring, the packing element is connected with the inner chamber adaptation of protective sheath, the other end and the protective sheath of stay cord are connected, the other end of spacing ring evenly is equipped with the spring, the other end and the protective sheath of spring are connected.
Preferably, the bottom of first center tube is connected with the extension pipe, the inner chamber swing joint of extension pipe and second center tube, just evenly be equipped with the rectangular channel on the lateral wall of extension pipe, the top of second center tube evenly is equipped with the rectangular rod, the other end of rectangular rod extends to the inner chamber of first center tube in through the rectangular channel, just rectangular rod and rectangular channel adaptation, the top of rectangular rod is connected with the bottom of holding ring, the internal surface of extension pipe is equipped with the internal thread, the internal diameter and the external diameter homogeneous phase of first center tube and second center tube are the same.
Preferably, the top of lower clutch inner chamber is connected with the screwed pipe, the top of screwed pipe extends to the middle part of second center tube inner chamber, just the surface on screwed pipe top is equipped with and prolongs the external screw thread of interior screw thread adaptation on the pipe.
Preferably, the length of protective sheath is half of packing element length, the length of spacing ring is the same with the length of protective sheath, evenly be equipped with the spring groove on the lateral wall in the protective sheath outside, the other end of spring and the interior wall connection in spring groove, the stay cord is located the middle part of spring inner chamber, just the other end and the interior wall connection in spring groove of stay cord.
Preferably, the outer surface of the rubber cylinder is wrapped by a titanium alloy wire mesh, the inner diameter of the rubber cylinder is the same as the outer diameter of the gear ring, and the inner cavity of the rubber cylinder is filled with inert gas.
Preferably, the gear is connected with the limiting ring through a supporting rod, a supporting rod is connected to the middle of the other end of the gear, the other end of the supporting rod is connected with the rotating wheel, and the rotating wheel is I-shaped.
Compared with the prior general trial production tool for plugging an oil layer, the invention has the following beneficial effects:
1. this a general trial production instrument for oil reservoir shutoff, through the setting of each part among the protective structure, the rotation of gear can drive the rotation wheel of being connected with it and rotate, the rotation of rotating the wheel makes the stay cord winding of being connected with it take turns to or take turns the separation with rotating, the stay cord winding is when rotating on taking turns, stay cord pulling protective sheath removes, the protective sheath can separate with the packing element gradually, the compression of the packing element of being convenient for, otherwise, the stay cord is less than the resilience force of spring to the pulling force of protective sheath and pushes away the thrust of protective sheath, the resilience force of spring promotes the protective sheath and removes, the protective sheath can remove the outside to the packing element, protect the packing element.
2. This a general trial production instrument for oil reservoir shutoff, setting through the titanium alloy silk screen, the wearability of packing element has been increased, the life of packing element has been improved, and the titanium alloy silk screen has the memory function, when removing the restriction to the packing element, the packing element can expand automatically, the protective sheath of being convenient for removes to the outside of packing element, protect the packing element, setting through the screwed pipe, when the packing element contacts with the wall of a well under the effect of pressure, rotate the lower clutch, lower clutch drives the screwed pipe and rotates, the screwed pipe can be in the same place by threaded connection with the extension pipe, the position of fixed extension pipe, make the packing element can remain the state of compression throughout, the use of the packer of being convenient for.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1 according to the present invention;
FIG. 3 is an enlarged schematic view of the structural protection structure of the present invention;
FIG. 4 is a schematic view of the connection of a first base pipe to a second base pipe in accordance with the present invention;
FIG. 5 is a schematic diagram of the structure protection structure and the rubber cylinder being separated.
In the figure: 1. an upper joint; 2. a first center tube; 3. a second center tube; 4. a lower joint; 5. a protective structure; 6. a fixing ring; 7. a rubber cylinder; 8. a toothed ring; 9. a gear; 10. a rotating wheel; 11. pulling a rope; 12. a limiting ring; 13. a protective sleeve; 14. lengthening a pipe; 15. a threaded pipe; 16. a positioning ring; 17. a rectangular bar; 18. a spring; 19. a support rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2 and 3, a general pilot production tool for plugging an oil layer comprises an upper joint 1, a first central tube 2, a second central tube 3 and a lower joint 4, wherein the middle part of the bottom of the upper joint 1 is connected with one end of the first central tube 2, the other end of the first central tube 2 is movably connected with the second central tube 3, the other end of the second central tube 3 is movably connected with the top end of an inner cavity of the lower joint 4, the rotation of the second central tube 3 is facilitated by the arrangement of the movable connection of the second central tube 3 and the lower joint 4, fixing rings 6 are movably connected with the outer ring at the bottom end of the first central tube 2 and the outer ring at the top end of the second central tube 3, the two fixing rings 6 are connected through a rubber cylinder 7, the outer ring at the top end of the first central tube 2 and the outer ring at the bottom end of the second central tube 3 are both connected with a toothed ring 8, the outer rings of the first central tube 2 and the second central tube 3 are both provided with a protection structure 5, the limiting ring 12 is movably connected with the first central tube 2 or the second central tube 3, the protection structure 5 comprises a limiting ring 12 and a protection sleeve 13, the limiting ring 12 is positioned at the inner sides of the toothed ring 8 and the fixing ring 6, the fixing ring 6 is contacted with one end of the limiting ring 12, the other end of the limiting ring 12 is uniformly provided with a gear 9, the gear 9 is meshed with the toothed ring 8, the other end of the gear 9 is movably connected with a rotating wheel 10, the outer ring of the rotating wheel 10 is wound with a pull rope 11, the outer ring of the limiting ring 12 is movably sleeved with the protection sleeve 13, the protection sleeve 13 can isolate the packing element 7 from the well wall through the arrangement of the protection sleeve 13, the packing element is prevented from rubbing against the packing element 7 under the lower part or in the recovery process, the service life of the packing element 7 is influenced, the inner cavity adaptation of the packing element 7 and the protection sleeve 13 is prevented, the other end of the pull rope 11 is connected with the protection sleeve 13, the other end of the limiting ring 12 is uniformly provided with a spring 18, the other end and the protective sheath 13 of spring 18 are connected, through the setting of each part in protection architecture 5, the rotation of gear 9 can drive the rotation wheel 10 of being connected with it and rotate, the rotation that rotates wheel 10 makes stay cord 11 winding of being connected with it on rotating wheel 10 or with rotating wheel 10 separation, stay cord 11 winding is when rotating wheel 10, stay cord 11 pulling protective sheath 13 removes, protective sheath 13 can separate with packing element 7 gradually, be convenient for the compression of packing element 7, on the contrary, stay cord 11 is less than the resilience force of spring 18 to protective sheath 13's pulling force to protective sheath 13 thrust to protective sheath 13, spring 18's resilience force promotes protective sheath 13 and removes, protective sheath 13 can remove to the outside of packing element 7, protection packing element 7.
Referring to fig. 4 and 5, the bottom of the first central tube 2 is connected with an elongated tube 14, the elongated tube 14 is movably connected with the inner cavity of the second central tube 3, a rectangular groove is uniformly formed in the side wall of the elongated tube 14, a rectangular rod 17 is uniformly arranged at the top of the second central tube 3, the other end of the rectangular rod 17 extends into the inner cavity of the first central tube 2 through the rectangular groove, the rectangular rod 17 is adapted to the rectangular groove, the first central tube 2 and the second central tube 3 can move relatively in the vertical direction through the arrangement of the rectangular groove and the rectangular rod 17, the first central tube 2 and the second central tube 3 cannot move relatively in the axial direction, the top of the rectangular rod 17 is connected with the bottom of a positioning ring 16, an internal thread is formed on the inner surface of the elongated tube 14, the inner diameter and the outer diameter of the first central tube 2 are the same as those of the second central tube 3, the positioning ring 16 can limit the distance of the relative movement between the first central tube 2 and the second central tube 3, preventing the first central tube 2 from separating from the second central tube 3.
The top of 4 inner chambers of lower clutch is connected with screwed pipe 15, the top of screwed pipe 15 extends to the middle part of 3 inner chambers of second center tubes, and the surface on screwed pipe 15 top is equipped with the external screw thread, internal thread and external screw thread adaptation, setting through screwed pipe 15, when packing element 7 under the effect of pressure with the wall of a well contact, screwed pipe 15 can be in the same place threaded connection with extension pipe 14, the position of fixed extension pipe 14, make packing element 7 can remain the state of compression throughout, the use of the packer of being convenient for.
The length of protective sheath 13 is half of packing element 7 length, and the length of spacing ring 12 is the same with protective sheath 13's length, evenly is equipped with the spring groove on the lateral wall in the protective sheath 13 outside, and the other end of spring 18 and the interior wall connection in spring groove, stay cord 11 are located the middle part of spring 18 inner chamber, and the other end of stay cord 11 and the interior wall connection in spring groove, through the setting in spring groove, the shrink of spring 18 of being convenient for.
The surface parcel of packing element 7 has the titanium alloy silk screen, setting through the titanium alloy silk screen, the wearability of packing element 7 has been increased, the life of packing element 7 has been improved, and the titanium alloy silk screen has the memory function, when removing the restriction to packing element 7, packing element 7 can expand automatically, the protective sheath 13 of being convenient for removes the outside to packing element 7, protection packing element 7, the internal diameter of packing element 7 is the same with the external diameter of ring gear 8, the inner chamber intussuseption of packing element 7 is filled with appropriate amount inert gas, fill inert gas through the inner chamber at packing element 7, the deformation of packing element 7 of being convenient for.
The gear 9 is connected with the limiting ring 12 through a support rod 19, a support rod is connected to the middle of the other end of the gear 9, the other end of the support rod is connected with the rotating wheel 10, the rotating wheel 10 is I-shaped, and the stay rope 11 can be prevented from being separated from the rotating wheel 10 through the arrangement of the rotating wheel 10 in shape, so that the stay rope 11 can be wound conveniently.
The working principle is as follows: when the tool is used, after the tool is moved to a proper position, when setting is needed, the upper joint 1 is driven to rotate by a pipe column, the upper joint 1 drives the first central pipe 2 connected with the upper joint to rotate, the first central pipe 2 drives the second central pipe 3 to rotate, the first central pipe 2 and the second central pipe 3 both drive the gear 9 connected with the upper joint to rotate, the gear 9 drives the rotating wheel 10 connected with the toothed ring 8 to rotate through the toothed ring 8 meshed with the gear 9, the rotating wheel 10 rotates to enable the pull rope 11 to be wound on the rotating wheel 10, the pulling force of the pull rope 11 on the protective sleeve 13 is greater than the acting force of the spring 18 on the protective sleeve 13, the protective sleeve 13 is far away from the rubber cylinder 7 under the pulling force of the pull rope 11, after the protective sleeve 13 is completely separated from the rubber cylinder 7, the upper joint 1 is pressed downwards, the upper joint 1 drives the fixing ring 6 connected with the upper joint to move downwards, the fixing ring 6 extrudes the rubber cylinder 7, the rubber cylinder 7 is compressed, the diameter of the rubber cylinder 7 is changed, axial motion takes place at the in-process that moves down for top connection 1, and top connection 1 drives extension pipe 14 and rotates, and when extension pipe 14 and screwed pipe 15 threaded connection, packing element 7 closely laminated with the wall of a well, this packer can seal the oil reservoir, the pilot production of the oil well of being convenient for.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A general trial production instrument for reservoir shutoff, includes top connection (1), first center tube (2), second center tube (3) and bottom connection (4), its characterized in that: the middle part of the bottom of the upper joint (1) is connected with one end of a first central tube (2), the other end of the first central tube (2) is movably connected with a second central tube (3), the other end of the second central tube (3) is movably connected with the top end of an inner cavity of a lower joint (4), the outer ring of the bottom end of the first central tube (2) and the outer ring of the top end of the second central tube (3) are both movably connected with fixing rings (6), the two fixing rings (6) are connected through a rubber sleeve (7), the outer ring of the top end of the first central tube (2) and the outer ring of the bottom end of the second central tube (3) are both connected with a toothed ring (8), the outer rings of the first central tube (2) and the second central tube (3) are both provided with a protection structure (5), the protection structure (5) comprises a limiting ring (12) and a protection sleeve (13), the limiting ring (12) is positioned at the inner sides of the toothed ring (8) and the fixing rings (6), just the one end contact of solid fixed ring (6) and spacing ring (12), the other end of spacing ring (12) evenly is equipped with gear (9), gear (9) and ring gear (8) meshing, the other end swing joint of gear (9) has rotation wheel (10), the outer lane winding of rotating wheel (10) has stay cord (11), protective sheath (13) have been cup jointed in the outer lane activity of spacing ring (12), the inner chamber adaptation of packing element (7) and protective sheath (13), the other end and the protective sheath (13) of stay cord (11) are connected, the other end of spacing ring (12) evenly is equipped with spring (18), the other end and the protective sheath (13) of spring (18) are connected.
2. A generic test production tool for plugging a reservoir according to claim 1 wherein: the bottom of first center tube (2) is connected with extension tube (14), the inner chamber swing joint of extension tube (14) and second center tube (3), just evenly be equipped with the rectangular channel on the lateral wall of extension tube (14), the top of second center tube (3) evenly is equipped with rectangle pole (17), the other end of rectangle pole (17) extends to the inner chamber of first center tube (2) through the rectangular channel in, just rectangle pole (17) and rectangular channel adaptation, the top of rectangle pole (17) is connected with the bottom of holding ring (16), the internal surface of extension tube (14) is equipped with the internal thread, the internal diameter and the external diameter of first center tube (2) and second center tube (3) are all the same.
3. A generic test production tool for plugging a reservoir according to claim 1 wherein: the top of lower clutch (4) inner chamber is connected with screwed pipe (15), the top of screwed pipe (15) extends to the middle part of second center tube (3) inner chamber, just the surface on screwed pipe (15) top is equipped with the external screw thread with interior screw thread adaptation on extension pipe (14).
4. A generic test production tool for plugging a reservoir according to claim 1 wherein: the length of protective sheath (13) is half of packing element (7) length, the length of spacing ring (12) is the same with the length of protective sheath (13), evenly be equipped with the spring groove on the lateral wall in protective sheath (13) outside, the other end and the inner wall connection in spring groove of spring (18), stay cord (11) are located the middle part of spring (18) inner chamber, just the other end and the inner wall connection in spring groove of stay cord (11).
5. A generic test production tool for plugging a reservoir according to claim 1 wherein: the outer surface of the rubber cylinder (7) is wrapped by a titanium alloy wire mesh, the inner diameter of the rubber cylinder (7) is the same as the outer diameter of the gear ring (8), and an inner cavity of the rubber cylinder (7) is filled with inert gas.
6. A generic test production tool for plugging a reservoir according to claim 1 wherein: the gear (9) is connected with the limiting ring (12) through a supporting rod (19), the middle of the other end of the gear (9) is connected with a supporting rod, the other end of the supporting rod is connected with a rotating wheel (10), and the rotating wheel (10) is I-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111132396.1A CN113863889A (en) | 2021-09-27 | 2021-09-27 | A general pilot production instrument for oil reservoir shutoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111132396.1A CN113863889A (en) | 2021-09-27 | 2021-09-27 | A general pilot production instrument for oil reservoir shutoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113863889A true CN113863889A (en) | 2021-12-31 |
Family
ID=78991003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111132396.1A Withdrawn CN113863889A (en) | 2021-09-27 | 2021-09-27 | A general pilot production instrument for oil reservoir shutoff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113863889A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163005A (en) * | 2022-06-15 | 2022-10-11 | 淮安市井神钻采机具有限公司 | oil pipe drain |
| CN116066033A (en) * | 2023-03-15 | 2023-05-05 | 山东巨辉石油科技有限公司 | Anti-blocking sand filtering pipe for oil well |
| CN117108240A (en) * | 2023-09-27 | 2023-11-24 | 武汉齐达康能源装备有限公司 | Fracturing open flow device |
| WO2025029270A1 (en) * | 2023-08-01 | 2025-02-06 | Halliburton Energy Services, Inc. | A sealing assembly employing a cylindrical protective sleeve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6364017B1 (en) * | 1999-02-23 | 2002-04-02 | Bj Services Company | Single trip perforate and gravel pack system |
| WO2016101374A1 (en) * | 2014-12-26 | 2016-06-30 | 杰瑞能源服务有限公司 | Bridge plug having large drift diameter and setting method thereof |
| CN206360679U (en) * | 2016-12-13 | 2017-07-28 | 中国石油化工股份有限公司 | Multichannel end is all-round to resilient support isolating seal device |
| CN113027367A (en) * | 2021-04-16 | 2021-06-25 | 张军 | Mechanical oil pipe anchor for stabilizing oil pipe |
| CN113153206A (en) * | 2021-04-16 | 2021-07-23 | 张军 | Down-hole wedged packer |
| CN113279724A (en) * | 2021-06-09 | 2021-08-20 | 门万龙 | Soluble bridge plug for oil well operation |
-
2021
- 2021-09-27 CN CN202111132396.1A patent/CN113863889A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6364017B1 (en) * | 1999-02-23 | 2002-04-02 | Bj Services Company | Single trip perforate and gravel pack system |
| WO2016101374A1 (en) * | 2014-12-26 | 2016-06-30 | 杰瑞能源服务有限公司 | Bridge plug having large drift diameter and setting method thereof |
| CN206360679U (en) * | 2016-12-13 | 2017-07-28 | 中国石油化工股份有限公司 | Multichannel end is all-round to resilient support isolating seal device |
| CN113027367A (en) * | 2021-04-16 | 2021-06-25 | 张军 | Mechanical oil pipe anchor for stabilizing oil pipe |
| CN113153206A (en) * | 2021-04-16 | 2021-07-23 | 张军 | Down-hole wedged packer |
| CN113279724A (en) * | 2021-06-09 | 2021-08-20 | 门万龙 | Soluble bridge plug for oil well operation |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163005A (en) * | 2022-06-15 | 2022-10-11 | 淮安市井神钻采机具有限公司 | oil pipe drain |
| CN116066033A (en) * | 2023-03-15 | 2023-05-05 | 山东巨辉石油科技有限公司 | Anti-blocking sand filtering pipe for oil well |
| WO2025029270A1 (en) * | 2023-08-01 | 2025-02-06 | Halliburton Energy Services, Inc. | A sealing assembly employing a cylindrical protective sleeve |
| US12326053B2 (en) | 2023-08-01 | 2025-06-10 | Halliburton Energy Services, Inc. | Sealing assembly employing a cylindrical protective sleeve |
| CN117108240A (en) * | 2023-09-27 | 2023-11-24 | 武汉齐达康能源装备有限公司 | Fracturing open flow device |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211231 |
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| WW01 | Invention patent application withdrawn after publication |