CN203008849U - Tube external self-sealing stage collar device - Google Patents
Tube external self-sealing stage collar device Download PDFInfo
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- CN203008849U CN203008849U CN 201220537844 CN201220537844U CN203008849U CN 203008849 U CN203008849 U CN 203008849U CN 201220537844 CN201220537844 CN 201220537844 CN 201220537844 U CN201220537844 U CN 201220537844U CN 203008849 U CN203008849 U CN 203008849U
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- mounting groove
- slide block
- sizing collar
- sliding sleeve
- lock valve
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Abstract
The utility model relates to the technical field of oil and gas well cementing operation, in particular to a tube external self-sealing stage collar device which comprises a stage collar body, a hole-closing device and a packer. The packer is fixedly installed on the lower portion of the stage collar body and can expand outward under a certain pressure, an inner cavity is formed in the middle of the stage collar body, an inner cavity is formed in the middle of the packer, and the lower end of the inner cavity of the stage collar body is communicated with the upper end of the inner cavity of the packer. At least one circulation hole is formed in the lower portion of the stage collar body along the circumference. The tube external self-sealing stage collar device is reasonable and compact in structure and convenient to use, enables a rubber sleeve to expand, the stage collar body to open and close holes through the matched use of a sliding sleeve, a hole-closing seat, a hole-opening seat, a unit sliding block, the rubber sleeve and a locking valve, and therefore the purposes of halfway well cementation, stage well cementation and formation packing are achieved. The tube external self-sealing stage collar device has the advantages of being high in reliability and short in time of well cementation, operation is convenient, the working efficiency is improved, and the potential safety hazard is reduced.
Description
Technical field
The utility model relates to oil gas well cementing operation operation technique field, is the outer self-sealing sizing collar device of a kind of pipe.
Background technology
The half way well shaft fixing technology generally adopts the pipe string combination of screen casing, external packer of pipe, short sleeve, sizing collar and bunch tube at present, the use of external packer of pipe and sizing collar is the key of half way well cementation, mainly has following problem in the use procedure of instrument: (1) needs two cover tool combinations could realize the half way well cementation; (2) the bad or inoperative cement paste that causes of the setting effect of external packer of pipe enters oil reservoir well section, affects the later stage pilot production; (3) sizing collar shifts to an earlier date perforate, causes the external packer of pipe can't be setting; Close in Kong Shiguan and have dead space, cause sizing collar close Kong Buyan or close the hole hypertonia, cause spraining and press Hou Ning, increased construction risk.
Summary of the invention
The utility model provides a kind of pipe outer self-sealing sizing collar device, has overcome the deficiency of above-mentioned prior art, its can effectively solve existing apparatus need to combine could the half way well cementation and external packer of pipe unreliable and have a problem of potential safety hazard.
The technical solution of the utility model realizes by following measures: the outer self-sealing sizing collar device of a kind of pipe comprises the sizing collar body, closes aperture apparatus and packing device; Be installed with the packing device that can outwards expand under certain pressure in the bottom of sizing collar body, there is inner chamber at middle part at the sizing collar body, there is inner chamber at middle part at packing device, the inner chamber upper end of the inner chamber lower end of sizing collar body and packing device is connected, and along circumference, at least one circulation port is arranged in the bottom of sizing collar body; Closing the upper outside of aperture apparatus and the upper inside wall of sizing collar body is fixed together by at least one hole, pass pin, the bottom of closing aperture apparatus is sleeved on the bottom of sizing collar body, in the bottom of closing aperture apparatus, the inlet opening corresponding with circulation port arranged, the aperture apparatus inboard, pass that is positioned at inlet opening below is fixedly connected with the monomer slide block by at least one perforate pin, and it is inboard that the top of monomer slide block is sleeved on the middle part of closing aperture apparatus.
The below is the further optimization and/or improvements to above-mentioned utility model technical scheme:
above-mentioned pass aperture apparatus comprises sliding sleeve, Guan Kongzuo, slide block and perforate seat, there are at least two slide block installing holes on top at sliding sleeve along circumference, the slide block mounting groove corresponding with the slide block installing hole arranged on the inwall of sizing collar body, slide block is arranged in slide block installing hole and slide block mounting groove, the bottom of slide block mounting groove is inclined-plane wide at the top and narrow at the bottom, the lower outside of slide block is inclined-plane wide at the top and narrow at the bottom, at the upper inner of sliding sleeve relevant hole seat, lower inside at Guan Kongzuo is fixed with the bruising piece, close the hole seat, sliding sleeve and sizing collar body close the hole pin by at least one and are fixed together, there is the slide block release groove in the outside, middle part at Guan Kongzuo, the lower outside face that closes the hole seat holds out against on the slide block inner face, there is step inboard, middle part at sliding sleeve, in the bottom of sliding sleeve, the inlet opening corresponding with circulation port arranged, there is the jump ring mounting groove in the outside that is positioned at the sliding sleeve of inlet opening below and jump ring is installed, the sliding sleeve inboard that is positioned at inlet opening below is installed with the perforate seat, inboard at the perforate seat is fixedly connected with the monomer slide block by at least one perforate pin, and the top of monomer slide block is sleeved on the inboard, middle part of sliding sleeve.
above-mentioned packing device comprises separator body, packing element and lock valve, there is inner chamber at middle part at the separator body, upper inner at the separator body has annular groove, the inboard, upper end of the lower outside of sizing collar body and separator body is fixedly installed togather, there is annular packing element mounting groove in the outside, middle part at the separator body, fixing seal is equipped with one deck packing element at least in annular packing element mounting groove, gapped between the middle part medial surface of packing element and the inner face of annular packing element mounting groove, the lock valve mounting groove that left and right directions is arranged on the top of separator body, fixing seal is equipped with lock valve in the lock valve mounting groove, the motion bar that stretches out is to the right arranged on lock valve, motion bar is positioned at the middle part of lock valve mounting groove, be installed with at the right-hand member of motion bar the right part that piston and sealing shroud are contained in the lock valve mounting groove, first passage with the intracavity inter-connection of the middle part of lock valve mounting groove and separator body is arranged on the top of separator body, the second channel that is connected with the middle part inner face of the middle part of lock valve mounting groove and annular packing element mounting groove is arranged on the separator body, be installed with the unlatching pin on the external port of second channel, the third channel that is connected with the middle part inner face of the right side of lock valve mounting groove and annular packing element mounting groove is arranged on the separator body.
There is the anti-rotation groove of at least one above-below direction in the above-mentioned outside, middle part at sliding sleeve along circumference, be fixed with stop pin on the sizing collar body, and the inner of stop pin is positioned at the bottom of anti-rotation groove.
Internal thread or external screw thread can be arranged at above-mentioned top at the sizing collar body, in the lower end of separator body, internal thread or external screw thread are arranged.
Can be fixedly installed togather by screw thread between above-mentioned perforate seat and sliding sleeve, be fixedly installed togather by screw thread between sizing collar body and separator body, on the left part inwall of lock valve mounting groove, internal thread is arranged, lock valve is arranged in the lock valve mounting groove by the screw thread fixing seal.
Can there be respectively the sealing ring mounting groove in the above-mentioned outside, upper and lower at Guan Kongzuo and sealing ring is installed, there is at least one sealing ring mounting groove in the outside, middle part at sliding sleeve and sealing ring is installed, there is the sealing ring mounting groove in the sliding sleeve outside that is positioned at circulation port below and sealing ring is installed, the sealing ring mounting groove is arranged in the outside of perforate seat and sealing ring is installed, upper outside at the monomer slide block has the sealing ring mounting groove and sealing ring is installed, and at least one sealing ring mounting groove is arranged and sealing ring is installed at the lower outside of monomer slide block.
The utility model reasonable and compact in structure, easy to use, by being used in conjunction with of sliding sleeve, Guan Kongzuo, perforate seat, monomer slide block, packing element and lock valve, make that packing element expands, thereby the perforate of sizing collar body and sizing collar body close the purpose that half way well cementation, fraclional well cementing and packing stratum are realized in the hole, have reliability height and short characteristics of well cementation time, facilitate operation, improved operating efficiency, reduced potential safety hazard.
Description of drawings
Accompanying drawing 1 is looked the half section structural representation for the master of the utility model most preferred embodiment.
Accompanying drawing 2 is analysed and observe the perspective structure schematic diagram for the amplification at the A place of accompanying drawing 1.
Accompanying drawing 3 is looked the half section structural representation for the master of impacting seat.
Accompanying drawing 4 is looked the half section structural representation for the master of flexible plug.
Accompanying drawing 5 is looked the half section structural representation for the master of closing stopple.
coding in accompanying drawing is respectively: 1 is the sizing collar body, 2 is circulation port, 3 for closing the hole pin, 4 is inlet opening, 5 are the perforate pin, 6 is the monomer slide block, 7 is sliding sleeve, 8 is Guan Kongzuo, 9 is slide block, 10 are the perforate seat, 11 is the slide block mounting groove, 12 are the bruising piece, 13 is the slide block release groove, 14 is step, 15 is jump ring, 16 is the separator body, 17 is packing element, 18 is lock valve, 19 is annular groove, 20 is the lock valve mounting groove, 21 is motion bar, 22 is piston, 23 is first passage, 24 is second channel, 25 for opening pin, 26 is third channel, 27 is anti-rotation groove, 28 is stop pin, 29 is sealing ring, 30 is impacting seat, 31 is flexible plug, 32 for closing stopple.
The specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
In the utility model, for convenience of description, the description of the relative position relation of each parts is all that the Butut mode according to Figure of description 1 is described, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing, the utility model is further described:
As shown in Figure 1, the outer self-sealing sizing collar device of this pipe comprises sizing collar body 1, closes aperture apparatus and packing device; Be installed with the packing device that can outwards expand under certain pressure in the bottom of sizing collar body 1, there is inner chamber at middle part at sizing collar body 1, there is inner chamber at middle part at packing device, the inner chamber upper end of the inner chamber lower end of sizing collar body 1 and packing device is connected, and along circumference, at least one circulation port 2 is arranged in the bottom of sizing collar body 1; Closing the upper outside of aperture apparatus and the upper inside wall of sizing collar body 1 is fixed together by at least one hole, pass pin 3, the bottom of closing aperture apparatus is sleeved on the bottom of sizing collar body 1, in the bottom of closing aperture apparatus, the inlet opening corresponding with circulation port 24 arranged, the aperture apparatus inboard, pass that is positioned at inlet opening 4 belows is fixedly connected with monomer slide block 6 by at least one perforate pin 5, and it is inboard that the top of monomer slide block 6 is sleeved on the middle part of closing aperture apparatus.Circulation port 2 is preferably four; Close hole pin 3 and be preferably eight; Perforate pin 5 is preferably eight.
Can according to actual needs, the outer self-sealing sizing collar device of above-mentioned pipe be made further optimization and/or improvements:
as shown in Figure 1, closing aperture apparatus comprises sliding sleeve 7, closes hole seat 8, slide block 9 and perforate seat 10, there are at least two slide block installing holes on top at sliding sleeve 7 along circumference, the slide block mounting groove 11 corresponding with the slide block installing hole arranged on the inwall of sizing collar body 1, slide block 9 is arranged in slide block installing hole and slide block mounting groove 11, the bottom of slide block mounting groove 11 is inclined-plane wide at the top and narrow at the bottom, the lower outside of slide block 9 is inclined-plane wide at the top and narrow at the bottom, at the upper inner of sliding sleeve 7 relevant hole seat 8, be fixed with bruising piece 12 in the lower inside of closing hole seat 8, close hole seat 8, sliding sleeve 7 and sizing collar body 1 close hole pin 3 by at least one and are fixed together, in the outside, middle part of closing hole seat 8, slide block release groove 13 is arranged, the lower outside face that closes hole seat 8 holds out against on slide block 9 inner faces, there is step 14 inboard, middle part at sliding sleeve 7, the inlet opening corresponding with circulation port 24 arranged in the bottom of sliding sleeve 7, there is the jump ring mounting groove in the outside that is positioned at the sliding sleeve 7 of inlet opening 4 belows and jump ring 15 is installed, sliding sleeve 7 inboards that are positioned at inlet opening 4 belows are installed with perforate seat 10, inboard at perforate seat 10 is fixedly connected with monomer slide block 6 by at least one perforate pin 5, and the top of monomer slide block 6 is sleeved on the inboard, middle part of sliding sleeve 7.
as shown in accompanying drawing 1,2, packing device comprises separator body 16, packing element 17 and lock valve 18, there is inner chamber at middle part at separator body 16, upper inner at separator body 16 has annular groove 19, the inboard, upper end of the lower outside of sizing collar body 1 and separator body 16 is fixedly installed togather, there is annular packing element mounting groove in the outside, middle part at separator body 16, fixing seal is equipped with one deck packing element 17 at least in annular packing element mounting groove, gapped between the middle part medial surface of packing element 17 and the inner face of annular packing element mounting groove, the lock valve mounting groove 20 that left and right directions is arranged on the top of separator body 16, at the interior fixing seal of lock valve mounting groove 20, lock valve 18 is installed, the motion bar 21 that stretches out is to the right arranged on lock valve 18, motion bar 21 is positioned at the middle part of lock valve mounting groove 20, be installed with at the right-hand member of motion bar 21 right part that piston 22 and sealing shroud are contained in lock valve mounting groove 20, first passage 23 with the intracavity inter-connection of the middle part of lock valve mounting groove 20 and separator body 16 is arranged on the top of separator body 16, the second channel 24 that is connected with the middle part inner face of the middle part of lock valve mounting groove 20 and annular packing element mounting groove is arranged on separator body 16, be installed with on the external port of second channel 24 and open pin 25, the third channel 26 that is connected with the middle part inner face of the right side of lock valve mounting groove 20 and annular packing element mounting groove is arranged on separator body 16.Like this, annular groove 19 is convenient in closing the hole process jump ring 15 and is displaced downwardly to annular groove 19 places with sliding sleeve 7 and flicks, and has prevented that sliding sleeve 7 from moving up.
As shown in Figure 1, in the outside, middle part of sliding sleeve 7, the anti-rotation groove 27 of at least one above-below direction is arranged along circumference, be fixed with stop pin 28 on sizing collar body 1, the inner of stop pin 28 is positioned at the bottom of anti-rotation groove 27.Like this, anti-rotation groove 27 and stop pin 28 play the along the circumferential direction rotation in the downslide process of anti-anti-skid sheath 7.
As shown in Figure 1, on the top of sizing collar body 1, internal thread or external screw thread are arranged, in the lower end of separator body 16, internal thread or external screw thread are arranged.Like this, internal thread or external screw thread are convenient to installation and removal.
As shown in accompanying drawing 1,2, be fixedly installed togather by screw thread between perforate seat 10 and sliding sleeve 7, be fixedly installed togather by screw thread between sizing collar body 1 and separator body 16, on the left part inwall of lock valve mounting groove 20, internal thread is arranged, lock valve 18 is arranged in lock valve mounting groove 20 by the screw thread fixing seal.Like this, be convenient to installation and removal between perforate seat 10 and sliding sleeve 7; Be convenient to the installation and removal between sizing collar body 1 and separator body 16; Be convenient to the installation and removal of lock valve 18.
as shown in Figure 1, the sealing ring mounting groove is arranged respectively and sealing ring 29 is installed in the outside, upper and lower of closing hole seat 8, there is at least one sealing ring mounting groove in the outside, middle part at sliding sleeve 7 and sealing ring 29 is installed, there is the sealing ring mounting groove in sliding sleeve 7 outsides that are positioned at inlet opening 4 belows and sealing ring 29 are installed, the sealing ring mounting groove is arranged in the outside of perforate seat 10 and sealing ring 29 is installed, upper outside at monomer slide block 6 has the sealing ring mounting groove and sealing ring 29 is installed, lower outside at monomer slide block 6 has at least one sealing ring mounting groove and sealing ring 29 is installed.Like this, be convenient to sealing.
Above technical characterictic has consisted of most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, satisfies the demand of different situations.
the use procedure of the utility model most preferred embodiment: during casing job, impacting seat 30 and top of the present utility model are fixedly installed togather, bottom of the present utility model and casing string are fixedly installed togather, be lowered to the predetermined position of horizontal cementing or straight well well cementation, in the cementing head of then flexible plug 31 being packed into, after well-flushing is adjusted mud property, open backing pin and discharge flexible plug 31, continue to pump into mud, flexible plug 31 comes downwards to bruising behind impacting seat 30 positions, mud liquid in the inner chamber of the inner chamber of sizing collar body 1 and separator body 16 enters in lock valve mounting groove 20 and enters in second channel 24 by first passage 23, the mud hydraulic coupling continues to rise, opening pin 25 when pressure reaches the pressure of cutting off unlatching pin 25 cuts off, mud liquid enters in packing element 17, the outside swollen envelope of packing element 17, pressure continues to raise, mud liquid enters third channel 26, pushing piston 22 moves from right to left together with motion bar 21, after piston 22 arrives the middle part of lock valve mounting groove 20, second channel 24 is blocked, stop for mud liquid, the outer packing of pipe this moment is completed.
Continue to be forced into perforate pressure, mud liquid extruding monomer slide block 6, perforate pin 5 between monomer slide block 6 and perforate seat 10 is cut off, monomer slide block 6 moves down and is stuck on the upper surface of perforate seat 10, this moment, mud liquid circulated on top of the present utility model by inlet opening 4 and circulation port 2, completed the perforate operation.
termination of pumping, to close stopple 32 packs in cementing head, begin cementing job after connecting pipeline, after pumping into the prepad fluid and cement paste of design flow, open rubber plug of cementing head, begin for slurry, close stopple 32 to the bruising piece 12 places bruising of closing hole seat 8 for starching to scheduled volume, after reaching the setting pressure of closing hole pin 3, cut off and close hole pin 3, hole, pass seat 8 enters in slide block release groove 13 after moving down and making slide block 9 break away from slide block mounting grooves 11 and slide block installing hole, close the upper surface of the lower surface extruding step 14 of hole seat 8, make and close hole seat 8, slide block 9, sliding sleeve 7, perforate seat 10 and monomer slide block 6 continue to move down together, until the lower surface of sliding sleeve 7 is stuck on the bottom face of annular groove 19, jump ring 10 entered in annular groove 19 and flicked this moment, complete and close the hole operation.The utility model can be with the upper-lower section packing of annular space, and the mud liquid that pumps into enters annular space top by inlet opening 4 and circulation port 2, and can't enter the bottom annular space, thereby completes the half way well cementation; For fraclional well cementing, consolidate need to wash out the cement paste of circulation port 2 upper ends after one-level, carry out again the secondary well cementation after solidifying Deng the bottom cement paste, so can waste a large amount of time, use the utility model to complete the rear packing annular space upper-lower section of one-level well cementation, can directly carry out the secondary well cementation, save a large amount of well cementation time; When horizontal cementing and fraclional well cementing, can reduce head of liquid, prevent leakage, avoid annular space cement paste after solid completion to sink and the pollution of oil layer section, ensure the recovery ratio of Oil/gas Well.Impacting seat 30, flexible plug 31 and pass stopple 32 are existing public device.
Claims (10)
1. the outer self-sealing sizing collar device of pipe, is characterized in that comprising the sizing collar body, close aperture apparatus and packing device; Be installed with the packing device that can outwards expand under certain pressure in the bottom of sizing collar body, there is inner chamber at middle part at the sizing collar body, there is inner chamber at middle part at packing device, the inner chamber upper end of the inner chamber lower end of sizing collar body and packing device is connected, and along circumference, at least one circulation port is arranged in the bottom of sizing collar body; Closing the upper outside of aperture apparatus and the upper inside wall of sizing collar body is fixed together by at least one hole, pass pin, the bottom of closing aperture apparatus is sleeved on the bottom of sizing collar body, in the bottom of closing aperture apparatus, the inlet opening corresponding with circulation port arranged, the aperture apparatus inboard, pass that is positioned at inlet opening below is fixedly connected with the monomer slide block by at least one perforate pin, and it is inboard that the top of monomer slide block is sleeved on the middle part of closing aperture apparatus.
2. the outer self-sealing sizing collar device of pipe according to claim 1, is characterized in that closing aperture apparatus and comprise sliding sleeve, Guan Kongzuo, slide block and perforate seat, there are at least two slide block installing holes on top at sliding sleeve along circumference, the slide block mounting groove corresponding with the slide block installing hole arranged on the inwall of sizing collar body, slide block is arranged in slide block installing hole and slide block mounting groove, the bottom of slide block mounting groove is inclined-plane wide at the top and narrow at the bottom, the lower outside of slide block is inclined-plane wide at the top and narrow at the bottom, at the upper inner of sliding sleeve relevant hole seat, lower inside at Guan Kongzuo is fixed with the bruising piece, close the hole seat, sliding sleeve and sizing collar body close the hole pin by at least one and are fixed together, there is the slide block release groove in the outside, middle part at Guan Kongzuo, the lower outside face that closes the hole seat holds out against on the slide block inner face, there is step inboard, middle part at sliding sleeve, in the bottom of sliding sleeve, the inlet opening corresponding with circulation port arranged, there is the jump ring mounting groove in the outside that is positioned at the sliding sleeve of inlet opening below and jump ring is installed, the sliding sleeve inboard that is positioned at inlet opening below is installed with the perforate seat, inboard at the perforate seat is fixedly connected with the monomer slide block by at least one perforate pin, and the top of monomer slide block is sleeved on the inboard, middle part of sliding sleeve.
3. the outer self-sealing sizing collar device of pipe according to claim 1 and 2, is characterized in that packing device comprises separator body, packing element and lock valve, there is inner chamber at middle part at the separator body, upper inner at the separator body has annular groove, the inboard, upper end of the lower outside of sizing collar body and separator body is fixedly installed togather, there is annular packing element mounting groove in the outside, middle part at the separator body, fixing seal is equipped with one deck packing element at least in annular packing element mounting groove, gapped between the middle part medial surface of packing element and the inner face of annular packing element mounting groove, the lock valve mounting groove that left and right directions is arranged on the top of separator body, fixing seal is equipped with lock valve in the lock valve mounting groove, the motion bar that stretches out is to the right arranged on lock valve, motion bar is positioned at the middle part of lock valve mounting groove, be installed with at the right-hand member of motion bar the right part that piston and sealing shroud are contained in the lock valve mounting groove, first passage with the intracavity inter-connection of the middle part of lock valve mounting groove and separator body is arranged on the top of separator body, the second channel that is connected with the middle part inner face of the middle part of lock valve mounting groove and annular packing element mounting groove is arranged on the separator body, be installed with the unlatching pin on the external port of second channel, the third channel that is connected with the middle part inner face of the right side of lock valve mounting groove and annular packing element mounting groove is arranged on the separator body.
4. the outer self-sealing sizing collar device of pipe according to claim 2, is characterized in that there is the anti-rotation groove of at least one above-below direction in the outside, middle part of sliding sleeve along circumference, is fixed with stop pin on the sizing collar body, and the inner of stop pin is positioned at the bottom of anti-rotation groove.
5. the outer self-sealing sizing collar device of pipe according to claim 3, is characterized in that there is the anti-rotation groove of at least one above-below direction in the outside, middle part of sliding sleeve along circumference, is fixed with stop pin on the sizing collar body, and the inner of stop pin is positioned at the bottom of anti-rotation groove.
6. the outer self-sealing sizing collar device of pipe according to claim 3, is characterized in that internal thread or external screw thread are arranged at the top of sizing collar body, in the lower end of separator body, internal thread or external screw thread arranged.
7. the outer self-sealing sizing collar device of pipe according to claim 5, is characterized in that internal thread or external screw thread are arranged at the top of sizing collar body, in the lower end of separator body, internal thread or external screw thread arranged.
8. the outer self-sealing sizing collar device of pipe according to claim 3, it is characterized in that being fixedly installed togather by screw thread between perforate seat and sliding sleeve, be fixedly installed togather by screw thread between sizing collar body and separator body, on the left part inwall of lock valve mounting groove, internal thread is arranged, lock valve is arranged in the lock valve mounting groove by the screw thread fixing seal.
9. the outer self-sealing sizing collar device of pipe according to claim 7, it is characterized in that being fixedly installed togather by screw thread between perforate seat and sliding sleeve, be fixedly installed togather by screw thread between sizing collar body and separator body, on the left part inwall of lock valve mounting groove, internal thread is arranged, lock valve is arranged in the lock valve mounting groove by the screw thread fixing seal.
10. the outer self-sealing sizing collar device of pipe according to claim 9, there is respectively the sealing ring mounting groove in the outside, upper and lower that it is characterized in that Guan Kongzuo and sealing ring is installed, there is at least one sealing ring mounting groove in the outside, middle part at sliding sleeve and sealing ring is installed, there is the sealing ring mounting groove in the sliding sleeve outside that is positioned at circulation port below and sealing ring is installed, the sealing ring mounting groove is arranged in the outside of perforate seat and sealing ring is installed, upper outside at the monomer slide block has the sealing ring mounting groove and sealing ring is installed, lower outside at the monomer slide block has at least one sealing ring mounting groove and sealing ring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220537844 CN203008849U (en) | 2012-10-21 | 2012-10-21 | Tube external self-sealing stage collar device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220537844 CN203008849U (en) | 2012-10-21 | 2012-10-21 | Tube external self-sealing stage collar device |
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| Publication Number | Publication Date |
|---|---|
| CN203008849U true CN203008849U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220537844 Expired - Fee Related CN203008849U (en) | 2012-10-21 | 2012-10-21 | Tube external self-sealing stage collar device |
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| Country | Link |
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| CN (1) | CN203008849U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670323A (en) * | 2013-12-06 | 2014-03-26 | 中国石油集团长城钻探工程有限公司 | Well completion device of thief formation |
| CN103883279A (en) * | 2014-03-31 | 2014-06-25 | 新疆通奥油田技术服务有限公司 | Tubular column type fast well fixing cement paste solidifying device |
| CN104653149A (en) * | 2014-12-31 | 2015-05-27 | 天津安东石油机械制造有限公司 | Oil-gas well gas-seal stage collar and assembly method thereof |
| CN104929572A (en) * | 2015-05-26 | 2015-09-23 | 成都高普石油工程技术有限公司 | Method for cementing wells during petroleum exploration |
| CN108625815A (en) * | 2017-03-23 | 2018-10-09 | 中石化石油工程技术服务有限公司 | A kind of fill-type external packer of pipe |
-
2012
- 2012-10-21 CN CN 201220537844 patent/CN203008849U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670323A (en) * | 2013-12-06 | 2014-03-26 | 中国石油集团长城钻探工程有限公司 | Well completion device of thief formation |
| CN103670323B (en) * | 2013-12-06 | 2016-03-30 | 中国石油集团长城钻探工程有限公司 | Leakiness stratum completion system |
| CN103883279A (en) * | 2014-03-31 | 2014-06-25 | 新疆通奥油田技术服务有限公司 | Tubular column type fast well fixing cement paste solidifying device |
| CN103883279B (en) * | 2014-03-31 | 2016-07-06 | 新疆通奥油田技术服务有限公司 | A kind of tubular column shape cementing slurry quick solidification apparatus |
| CN104653149A (en) * | 2014-12-31 | 2015-05-27 | 天津安东石油机械制造有限公司 | Oil-gas well gas-seal stage collar and assembly method thereof |
| CN104929572A (en) * | 2015-05-26 | 2015-09-23 | 成都高普石油工程技术有限公司 | Method for cementing wells during petroleum exploration |
| CN108625815A (en) * | 2017-03-23 | 2018-10-09 | 中石化石油工程技术服务有限公司 | A kind of fill-type external packer of pipe |
| CN108625815B (en) * | 2017-03-23 | 2024-02-23 | 中石化石油工程技术服务有限公司 | Filling type external pipe packer |
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Granted publication date: 20130619 Termination date: 20201021 |