CN116624123A - Underground sealing rubber cylinder for oil and gas field - Google Patents
Underground sealing rubber cylinder for oil and gas field Download PDFInfo
- Publication number
- CN116624123A CN116624123A CN202310749295.1A CN202310749295A CN116624123A CN 116624123 A CN116624123 A CN 116624123A CN 202310749295 A CN202310749295 A CN 202310749295A CN 116624123 A CN116624123 A CN 116624123A
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- Prior art keywords
- ring
- fixedly connected
- circular wall
- rubber cylinder
- groove
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- 238000007789 sealing Methods 0.000 title claims abstract description 50
- 238000001125 extrusion Methods 0.000 claims abstract description 15
- 238000012856 packing Methods 0.000 claims description 36
- 239000000835 fiber Substances 0.000 claims description 10
- 239000003921 oil Substances 0.000 description 9
- 239000010779 crude oil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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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)
- Gasket Seals (AREA)
Abstract
The invention discloses an underground sealing rubber cylinder for an oil-gas field, which has the technical scheme that: the positioning device comprises a positioning ring, wherein the top surface of the positioning ring is provided with a first adjusting ring, and the bottom surface of the positioning ring is provided with a second adjusting ring; the two extrusion rings are respectively and fixedly connected with the outer circular wall surface of the first adjusting ring and the outer circular wall surface of the second adjusting ring, the bottom surface of the extrusion ring is fixedly connected with an inner rubber cylinder, and the outer circular wall surface of the inner rubber cylinder is fixedly connected with an outer rubber cylinder; the connecting component is arranged on the top surface of the positioning ring and used for connecting the first adjusting ring with the positioning ring; the fixing component is arranged on the top surface of the first adjusting ring, and is movably sleeved with the limiting groove through the limiting block, so that the connecting rod is prevented from moving out of the connecting groove, and the sealing performance and the high-pressure resistance of the whole sealing rubber barrel are further ensured through the conical surface arranged after one side of the conical surface is completely contacted with the outer surface of the inner rubber barrel.
Description
Technical Field
The invention relates to the technical field of sealing rubber barrels, in particular to an underground sealing rubber barrel for an oil-gas field.
Background
The packer is a downhole tool commonly used in oil field crude oil extraction and water injection processes. The annular space between the oil pipe and the casing pipe is separated by a sealing rubber cylinder so as to be convenient for exploiting crude oil of different stratum and injecting high-pressure water into specific stratum to drive the crude oil to flow (commonly called seat seal), the packer is provided with an elastic sealing element, annular spaces between pipe columns of various sizes and the well bore and between the pipe columns are sealed by the elastic sealing element to isolate a production zone so as to control the production and the injection of liquid, the downhole tool of the casing pipe is protected, and the packer mainly comprises a central pipe, a piston, a cone, slips, sealing elements and the like, wherein the sealing elements are key elements of the packer and play a role in sealing annular space. The sealing element can be divided into three types of leather cup, rubber cylinder and capsule according to the structural principle, and the leather cup packer commonly used in oil fields is self-sealing.
For example, chinese patent with publication No. CN114542006a, a sealing rubber assembly and a packer are proposed, the assembly includes a middle rubber and two side rubber, the middle rubber and the side rubber are both cylindrical and coaxially arranged, the two side rubber are symmetrically arranged at two ends of the middle rubber, and the two side rubber are respectively abutted with two ends of the middle rubber, when in use, the sealing rubber is put into a casing under a well, then under the action of pushing force, a compression ring moves towards a guide ring, the side rubber and the middle rubber are driven to deform, an annular space between the casing and a central shaft is fully sealed, the side rubber is an auxiliary seal, the two side rubber can share the pulling force (i.e. the pushing and pulling force of the side rubber along the axial direction of the central shaft) of the middle rubber, the contact stress of the sealing rubber assembly and the casing is improved, the deformation degree of the middle rubber can be reduced, and then the effective sealing under the high-pressure working condition is realized, but the sealing rubber is realized under the short-stage sealing rubber due to the fact that the sealing rubber is in the practical packer, and the sealing rubber is compressed by the length of the well is worse.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an underground sealing rubber cylinder for an oil-gas field, and solves the problem that the sealing effect is poor under high pressure due to the fact that the rubber cylinder is extruded to realize the sealing of an annular space.
The technical aim of the invention is realized by the following technical scheme:
an oil and gas field downhole packing element, comprising: the positioning device comprises a positioning ring, wherein the top surface of the positioning ring is provided with a first adjusting ring, and the bottom surface of the positioning ring is provided with a second adjusting ring; the two extrusion rings are respectively and fixedly connected with the outer circular wall surface of the first adjusting ring and the outer circular wall surface of the second adjusting ring, the bottom surface of the extrusion ring is fixedly connected with an inner rubber cylinder, and the outer circular wall surface of the inner rubber cylinder is fixedly connected with an outer rubber cylinder; the connecting component is arranged on the top surface of the positioning ring and used for connecting the first adjusting ring with the positioning ring; the fixing component is arranged on the top surface of the first adjusting ring and used for fixing the first adjusting ring.
Through adopting above-mentioned technical scheme, through setting up coupling assembling, coupling assembling can with first adjusting ring with the holding ring is connected to make first adjusting ring can remove at the top surface of holding ring.
Preferably, the connection assembly includes: the connecting grooves are respectively arranged on the top surface and the bottom surface of the positioning ring, connecting rods are fixedly connected to the bottom end of the first adjusting ring and the top end of the second adjusting ring, and the connecting rods are movably sleeved with the connecting grooves; the grid baffle ring is fixedly connected to the outer circular wall surface of the positioning ring, and the top end of the grid baffle ring is fixedly connected with the bottom end of the inner rubber cylinder; and the limiting piece is arranged in the connecting groove and used for limiting the connecting rod.
Through adopting above-mentioned technical scheme, through setting up the connective bar, establish together the back through connective bar and spread groove activity cover to make first adjusting ring and second adjusting ring can remove at the top and the bottom of holding ring respectively.
Preferably, the limiting member includes: the two limiting grooves are formed in the inner circular wall surface of the connecting groove, the two limiting blocks are fixedly connected with the outer circular wall surface of the connecting rod, and the limiting blocks and the limiting grooves are movably sleeved together; the conical surface is arranged at the bottom end of the outer rubber cylinder.
Through adopting above-mentioned technical scheme, through setting up the stopper, establish together the back through stopper and spacing groove activity cover to avoid the connective bar to shift out the inside of spread groove.
Preferably, the inner circular wall surface of the outer rubber cylinder is provided with a fixing groove, and the inside of the fixing groove is fixedly connected with a fiber woven net.
Through adopting above-mentioned technical scheme, through setting up the conical surface, after one side of conical surface and the surface of interior packing element contact completely to further ensure the leakproofness and the high pressure resistant ability of whole packing element.
Preferably, the fixing assembly includes: the first connecting ring is fixedly connected to the top end of the first adjusting ring, and the bottom end of the second adjusting ring is fixedly connected with the second connecting ring; the pushing end connector is arranged at the top end of the first connecting ring, and the bottom surface of the second connecting ring is provided with a fixed end connector; the connecting piece is arranged on the top surface of the pushing end connector and is used for connecting the first connecting ring with the pushing end connector.
Through adopting above-mentioned technical scheme, through setting up the pushing end and connect, after the staff connects the pushing end of pushing end and packer to be connected, with the stiff end of stiff end and packer again after being connected to be convenient for install the solid fixed ring later stage.
Preferably, the connecting member includes: the two through holes are respectively formed at the top end of the pushing end connector and the top end of the fixed end connector, and the inner circular wall surface of the through holes is provided with a mounting groove; the two mounting rings are respectively and fixedly connected with the inner circular wall surface of the first connecting ring and the inner circular wall surface of the second connecting ring, the inner circular wall surface of the mounting groove is provided with a positioning groove, the first connecting ring is movably sleeved with the positioning groove, the inner circular wall surface of the first connecting ring and the inner circular of the second connecting ring are fixedly connected with extrusion blocks, the outer circular wall surface of the mounting ring is provided with first threads, the inner circular wall surface of the mounting groove is provided with second threads, and the first threads are in threaded connection with the second threads.
Through adopting above-mentioned technical scheme, through setting up first adjusting ring, after the promotion end of packer drives first adjusting ring through the promotion end joint and removes to make first adjusting ring can remove at the top surface of holding ring, extrude interior packing element and outer packing element, make interior packing element and outer packing element cooperation use, can seal the packer, thereby the staff of being convenient for use the packer later stage to the exploitation of crude oil in the oil field.
Preferably, the top surface inside the positioning groove is provided with a sealing groove, the inner movable sleeve of the sealing groove is provided with a sealing gasket, the top end of the first connecting ring and the bottom end of the second connecting ring are provided with a placing groove, and the inner movable sleeve of the placing groove is provided with a sealing ring.
Through adopting above-mentioned technical scheme, through setting up the fiber mesh grid, the fiber mesh grid can reduce the deformation degree of outer packing element, increases the area of contact of outer packing element, and then realizes the effective seal under the high temperature high pressure operating mode.
Preferably, the bottom of the extrusion ring and the top and bottom surfaces of the grid baffle ring are fixedly connected with a fixing ring, and the bottom of the fixing ring is fixedly connected with a protection ring.
Through adopting above-mentioned technical scheme, through setting up the collar, after the collar is fixed in the inside of mounting groove, sealed pad and sealing washer cooperation use this moment can seal the inside of first go-between and constant head tank.
In summary, the invention has the following advantages:
through setting up the pushing end and connect, after the staff connects the pushing end with the pushing end of packer and is connected, connect the stiff end with the stiff end of packer again after, through setting up first adjusting ring, after the pushing end of packer drives first adjusting ring through the pushing end and removes, thereby make first adjusting ring can remove at the top surface of holding ring, extrude interior packing element and outer packing element, make interior packing element and outer packing element cooperation use, can seal the packer, thereby the staff of being convenient for uses the packer later stage to exploitation crude oil in the oil field, through setting up the connective bar, establish together after through connective bar and spread groove movable sleeve, thereby make first adjusting ring and second adjusting ring can remove respectively in the top and the bottom of holding ring, through setting up the stopper, establish together after through stopper and spread groove movable sleeve, thereby avoid the connective bar to shift out the inside of spread groove, through setting up the conical surface, after one side and the surface of interior packing element contact completely, thereby further ensure the leakproofness and the high pressure resistance of whole sealed packing element.
Through setting up check and keep off the ring, check keeps off the ring and can keep off two interior packing elements, through setting up the fiber woven mesh, the fiber woven mesh can reduce the deformation degree of outer packing element, increase the area of contact of outer packing element, and then realize effective sealing under the high temperature high pressure operating mode, through setting up the collar, after the inside at the mounting groove is fixed to the collar, sealing washer and sealing washer cooperation use this moment, can seal the inside of first go-between and constant head tank, through setting up the protection ring, the protection ring can protect outer packing element.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of the construction of the check ring of the present invention;
FIG. 3 is a schematic cross-sectional view of a retaining ring of the present invention;
FIG. 4 is a schematic view of a partial enlarged structure of FIG. 3A;
FIG. 5 is a schematic cross-sectional view of the inner liner of the present invention;
FIG. 6 is a schematic cross-sectional view of a push-on end fitting of the present invention;
FIG. 7 is a schematic cross-sectional view of the extrusion block of the present invention.
Reference numerals: 1. a positioning ring; 2. a first adjusting ring; 3. a second adjusting ring; 4. a pressing ring; 5. an inner rubber cylinder; 6. an outer rubber cylinder; 7. a connecting groove; 8. a connecting rod; 9. a grid baffle ring; 10. a limit groove; 11. a limiting block; 12. a fixing groove; 13. a fiber woven mesh; 14. a first connection ring; 15. a second connecting ring; 16. pushing the end connector; 17. a fixed end joint; 18. a through hole; 19. a mounting groove; 20. a mounting ring; 21. a positioning groove; 22. extruding a block; 23. a first thread; 24. a second thread; 25. sealing grooves; 26. a sealing gasket; 27. a placement groove; 28. a seal ring; 29. a fixing ring; 30. a protective ring; 31. and (5) a conical surface.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the oil and gas field underground sealing rubber cylinder comprises a positioning ring 1, the top surface of the positioning ring 1 is provided with a first adjusting ring 2, the bottom surface of the positioning ring 1 is provided with a second adjusting ring 3, the outer circular wall surface of the first adjusting ring 2 and the outer circular wall surface of the second adjusting ring 3 are fixedly connected with an extrusion ring 4, the bottom surface of the extrusion ring 4 is fixedly connected with an inner rubber cylinder 5, the outer circular wall surface of the inner rubber cylinder 5 is fixedly connected with an outer rubber cylinder 6, the top surface of the positioning ring 1 is provided with a connecting component for connecting the first adjusting ring 2 with the positioning ring 1, the top surface of the first adjusting ring 2 is provided with a fixing component for fixing the first adjusting ring 2, the connecting component comprises a plurality of connecting grooves 7, the plurality of connecting grooves 7 are respectively arranged on the top surface and the bottom surface of the positioning ring 1, the bottom end of the first adjusting ring 2 and the top end of the second adjusting ring 3 are fixedly connected with a connecting rod 8, the connecting rod 8 and the connecting grooves 7 are movably sleeved together, the outer circular wall surface of the positioning ring 1 is fixedly connected with an outer circular wall surface of the outer rubber cylinder 9, the top end 9 of the positioning ring 9 is fixedly connected with the inner rubber cylinder 9, and the inner stop bars 9 are fixedly connected with the inner stop bars 5, and stop bars are arranged inside the stop bars 9, and stop bars are arranged inside the stop bars and can be fixedly connected with stop bars, and stop bars 9.
Example two
Based on the above embodiment 1, referring to fig. 2, fig. 3, fig. 4 and fig. 5, the limiting member includes two limiting grooves 10, two limiting grooves 10 are all offered on the interior circular wall surface of the connecting groove 7, two limiting blocks 11 of the outer circular wall surface fixedly connected with of the connecting rod 8, limiting block 11 is established together with limiting groove 10 movable sleeve, conical surface 31 has been offered to the bottom of outer packing element 6, fixed slot 12 has been offered to the interior circular wall surface of outer packing element 6, the inside fixedly connected with fibre woven mesh 13 of fixed slot 12, the fixed subassembly includes first go-between 14, first go-between 14 fixed connection is on the top of first adjusting ring 2, the bottom fixedly connected with second go-between 15 of second adjusting ring 3, the top of first go-between 14 is provided with pushing end joint 16, the bottom of second go-between 15 is provided with stiff end joint 17, the top surface of pushing end joint 16 is provided with the connecting piece for with first connecting ring 14 and pushing end joint 16 connect, through setting up first adjusting ring 2, the pushing end when the packer drives first adjusting ring 2 through pushing end joint 16 and removes first adjusting ring 2, thereby can carry out the seal with the inner packing element 5 in the inner packing element 5, make the inner packing element 5 can be carried out with the inner packing element 5 in the inner packing element of the sealing sleeve, make the inner packing element 5 is convenient for carrying out.
Example III
Based on the above embodiment 1 or 2, referring to fig. 1, 3, 6 and 7, the connecting member includes two through holes 18, the two through holes 18 are respectively formed at the top end of the push end fitting 16 and the top end of the fixed end fitting 17, the inner circular wall of the through hole 18 is formed with a mounting groove 19, the inner circular wall of the first connecting ring 14 and the inner circular wall of the second connecting ring 15 are fixedly connected with a mounting ring 20, the inner circular wall of the mounting groove 19 is formed with a positioning groove 21, the first connecting ring 14 and the positioning groove 21 are movably sleeved together, the inner circular wall of the first connecting ring 14 and the inner circular of the second connecting ring 15 are fixedly connected with an extrusion block 22, the outer circular wall of the mounting ring 20 is formed with a first thread 23, the inner circular wall of the mounting groove 19 is formed with a second thread 24, the first screw thread 23 is in the same place with the equal fixedly connected with solid fixed ring 29 of second screw thread 24 threaded connection of second screw thread, seal groove 25 has been seted up to the inside top surface of constant head tank 21, seal groove 25's inside movable sleeve is equipped with sealed pad 26, standing groove 27 has all been seted up to the top of first go-between 14 and the bottom of second go-between 15, standing groove 27's inside movable sleeve is equipped with sealing washer 28, the bottom of extrusion ring 4 and the top surface and the bottom surface of check ring 9 all fixedly connected with solid fixed ring 29, gu fixed ring 29's bottom fixedly connected with guard ring 30, through setting up collar 20, after collar 20 is fixed in the inside of mounting groove 19, sealed pad 26 and sealing washer 28 cooperation use this moment, can seal the inside of first go-between 14 and constant head tank 21.
Working principle: referring to fig. 1-7, when in use, by arranging the pushing end connector 16, after a worker connects the pushing end connector 16 with the pushing end of the packer, and then connects the fixed end connector 17 with the fixed end of the packer, by arranging the first adjusting ring 2, after the pushing end of the packer drives the first adjusting ring 2 to move through the pushing end connector 16, the first adjusting ring 2 can move on the top surface of the positioning ring 1, the inner rubber tube 5 and the outer rubber tube 6 are extruded, the inner rubber tube 5 and the outer rubber tube 6 are matched for use, the packer can be sealed, thus the worker can conveniently use the packer to extract crude oil in an oil field at a later stage, by arranging the connecting rod 8, after movably sleeved with the connecting groove 7 through the connecting rod 8, the first adjusting ring 2 and the second adjusting ring 3 can respectively move on the top end and the bottom end of the positioning ring 1, by arranging the limiting block 11 and the limiting groove 10, the connecting rod 8 is prevented from moving out of the inside the connecting groove 7, and the whole conical surface 31 can be completely contacted with the conical surface 31 after the whole conical surface is completely sealed by arranging the limiting block 11;
through setting up check ring 9, check ring 9 can keep off two interior packing element 5, through setting up fiber woven mesh 13, fiber woven mesh 13 can reduce the deformation degree of outer packing element 6, increase the area of contact of outer packing element 6, and then realize effective sealing under the high temperature high pressure operating mode, through setting up collar 20, after collar 20 is fixed in the inside of mounting groove 19, sealing washer 26 and sealing washer 28 cooperation use this moment, can seal the inside of first go-between 14 and constant head tank 21, through setting up guard ring 30, guard ring 30 can protect outer packing element 6.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The oil gas field is sealed packing element in pit, its characterized in that includes:
the positioning device comprises a positioning ring (1), wherein a first adjusting ring (2) is arranged on the top surface of the positioning ring (1), and a second adjusting ring (3) is arranged on the bottom surface of the positioning ring (1);
the two extrusion rings (4) are respectively and fixedly connected with the outer circular wall surface of the first adjusting ring (2) and the outer circular wall surface of the second adjusting ring (3), the bottom surface of the extrusion ring (4) is fixedly connected with an inner rubber cylinder (5), and the outer circular wall surface of the inner rubber cylinder (5) is fixedly connected with an outer rubber cylinder (6);
the connecting component is arranged on the top surface of the positioning ring (1) and is used for connecting the first adjusting ring (2) with the positioning ring (1);
the fixing component is arranged on the top surface of the first adjusting ring (2) and used for fixing the first adjusting ring (2).
2. The field downhole packing element of claim 1, wherein the connection assembly comprises:
the connecting grooves (7) are respectively formed in the top surface and the bottom surface of the positioning ring (1), connecting rods (8) are fixedly connected to the bottom end of the first adjusting ring (2) and the top end of the second adjusting ring (3), and the connecting rods (8) are movably sleeved with the connecting grooves (7);
the check ring (9), the said check ring (9) is fixedly connected to the external circular wall surface of the said locating ring (1), the top of the said check ring (9) is fixedly connected with bottom of the said inner rubber cylinder (5);
the limiting piece is arranged in the connecting groove (7) and used for limiting the connecting rod (8).
3. The oil and gas field downhole packing element of claim 2, wherein the stop comprises:
the two limiting grooves (10) are formed in the inner circular wall surface of the connecting groove (7), two limiting blocks (11) are fixedly connected to the outer circular wall surface of the connecting rod (8), and the limiting blocks (11) and the limiting grooves (10) are movably sleeved together;
the conical surface (31), the conical surface (31) is arranged at the bottom end of the outer rubber cylinder (6).
4. The underground sealing rubber cylinder for oil and gas fields according to claim 1, wherein the inner circular wall surface of the outer rubber cylinder (6) is provided with a fixing groove (12), and a fiber woven net (13) is fixedly connected inside the fixing groove (12).
5. The field downhole packing element of claim 1, wherein the securing assembly comprises:
the first connecting ring (14), the first connecting ring (14) is fixedly connected to the top end of the first adjusting ring (2), and the bottom end of the second adjusting ring (3) is fixedly connected with a second connecting ring (15);
the pushing end connector (16), the pushing end connector (16) is arranged at the top end of the first connecting ring (14), and the bottom surface of the second connecting ring (15) is provided with a fixed end connector (17);
the connecting piece is arranged on the top surface of the pushing end connector (16) and is used for connecting the first connecting ring (14) with the pushing end connector (16).
6. The field wellbore packing element of claim 5, wherein the connection comprises:
the two through holes (18) are respectively formed in the top end of the pushing end connector (16) and the top end of the fixed end connector (17), and the inner circular wall surface of the through hole (18) is provided with a mounting groove (19);
the two mounting rings (20), two the mounting ring (20) are in respectively fixed connection the interior circular wall of first go-between (14) with the interior circular of second go-between (15), constant head tank (21) have been seted up to the interior circular wall of mounting groove (19), first go-between (14) with constant head tank (21) movable sleeve establishes together, the interior circular wall of first go-between (14) with the interior circular of second go-between (15) is all fixedly connected with extrusion piece (22), first screw thread (23) have been seted up to the outer circular wall of mounting ring (20), second screw thread (24) have been seted up to the interior circular wall of mounting groove (19), first screw thread (23) with second screw thread (24) threaded connection together.
7. The underground sealing rubber cylinder for oil and gas fields according to claim 6, wherein the top surface inside the positioning groove (21) is provided with a sealing groove (25), a sealing gasket (26) is movably sleeved inside the sealing groove (25), the top end of the first connecting ring (14) and the bottom end of the second connecting ring (15) are provided with a placing groove (27), and a sealing ring (28) is movably sleeved inside the placing groove (27).
8. The underground sealing rubber cylinder for the oil and gas field according to claim 2, wherein the bottom end of the extrusion ring (4) and the top surface and the bottom surface of the check ring (9) are fixedly connected with a fixing ring (29), and the bottom end of the fixing ring (29) is fixedly connected with a protection ring (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310749295.1A CN116624123B (en) | 2023-06-25 | 2023-06-25 | Underground sealing rubber cylinder for oil and gas field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310749295.1A CN116624123B (en) | 2023-06-25 | 2023-06-25 | Underground sealing rubber cylinder for oil and gas field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116624123A true CN116624123A (en) | 2023-08-22 |
| CN116624123B CN116624123B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310749295.1A Active CN116624123B (en) | 2023-06-25 | 2023-06-25 | Underground sealing rubber cylinder for oil and gas field |
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| CN114542006A (en) * | 2020-11-26 | 2022-05-27 | 中国石油天然气集团有限公司 | Sealed cartridge assembly and packer of gluing |
| CN216788358U (en) * | 2022-03-09 | 2022-06-21 | 惠峰 | Outburst prevention device of packer rubber barrel for oil and gas field development |
-
2023
- 2023-06-25 CN CN202310749295.1A patent/CN116624123B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165307A (en) * | 2006-10-18 | 2008-04-23 | 刘宜贵 | Highly sealed compression packer |
| CN101942981A (en) * | 2010-10-23 | 2011-01-12 | 荆州市赛瑞能源技术有限公司 | Open hole packer with double rubber drums |
| CN203476279U (en) * | 2013-09-18 | 2014-03-12 | 西南石油大学 | Sealing device of oil well compression type external casing packer |
| CN110714735A (en) * | 2019-10-30 | 2020-01-21 | 南通市华业石油机械有限公司 | Rubber cylinder structure of packer and preparation method thereof |
| CN110984902A (en) * | 2019-12-21 | 2020-04-10 | 阜新驰宇石油机械有限公司 | Recoverable combination formula compression packing element protection machanism |
| CN114542006A (en) * | 2020-11-26 | 2022-05-27 | 中国石油天然气集团有限公司 | Sealed cartridge assembly and packer of gluing |
| CN216788358U (en) * | 2022-03-09 | 2022-06-21 | 惠峰 | Outburst prevention device of packer rubber barrel for oil and gas field development |
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| CN116624123B (en) | 2024-02-02 |
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