CN102116138A - Tapered release type tubing plug - Google Patents
Tapered release type tubing plug Download PDFInfo
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- CN102116138A CN102116138A CN2010106172959A CN201010617295A CN102116138A CN 102116138 A CN102116138 A CN 102116138A CN 2010106172959 A CN2010106172959 A CN 2010106172959A CN 201010617295 A CN201010617295 A CN 201010617295A CN 102116138 A CN102116138 A CN 102116138A
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- packing element
- taper
- glue tube
- auxiliary seal
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Abstract
The invention relates to the technical field of tubing plugs used in operation under pressure of oil-water-gas wells, in particular to a tapered release type tubing plug, which comprises a sliding block trip spear positioning device, an intermediate rod, a leather cup driving device and an upper positioning device, wherein the intermediate rod is fixedly mounted at the upper end of the sliding block trip spear positioning device, the leather cup driving device is fixedly mounted at the lower part on the outer side of the intermediate rod, and the upper positioning device is fixedly mounted at the upper end of the intermediate rod. The structure is reasonable and compact, the use is convenient, a left sliding block and a right sliding block can move downwards, protrude the outer side of a spear rod and be camped on the inner wall of a tubing by lifting upwards, and a tapered release packing element and an auxiliary sealing packing element are simultaneously propped open under the action of pulling force and clamped on the inner wall of the tubing, thereby playing a role in sealing the interior of the tubing, and having the characteristics of simple structure, low cost, safety, reliability, simplicity and high efficiency.
Description
Technical field
The present invention relates to the tubing plug technical field that profit gas well Operating Pressure is used, is a kind of taper releasing type tubing plug.
Background technology
Choked technique is the assurance that realizes Oil, Water, Gas well safety Operating Pressure in the oil pipe, also is simultaneously the bottleneck that restriction Operating Pressure technology is applied.Seal in the tubing string during for all kinds of Oil, Water, Gas well Operating Pressure, both at home and abroad higher, the poor reliability of tubing plug ubiquity complex structure, the cost that uses, awkward shortcoming, and the present domestic more slip-type blanking plug that is that uses, because the variation of tubing string internal pressure, the slip-type blanking plug has the following disadvantages in actual use: slips easily becomes flexible deblocking, poor reliability, has potential safety hazard, can not effectively guarantee the safe Operating Pressure of Oil, Water, Gas well.
Summary of the invention
The invention provides a kind of taper releasing type tubing plug, overcome the deficiency of above-mentioned prior art, the slips that its slip-type blanking plug that can effectively solve existing profit gas well Operating Pressure use exists easily becomes flexible deblocking, poor reliability, has the problem of potential safety hazard.
Technical scheme of the present invention realizes by following measure: a kind of taper releasing type tubing plug comprises that slide block drags for lance positioner, intermediate bar, leather cup drive unit and last positioner; The upper end that slide block drags for the lance positioner is installed with intermediate bar, and the outer lower portion of intermediate bar is installed with the leather cup drive unit, and the top of intermediate bar is installed with positioner.
Be further optimization and/or improvements below to the foregoing invention technical scheme:
Above-mentioned slide block drags for the lance positioner can comprise lance bar, left slide rail, right slide rail, left locking plate, right locking plate, left slider and right slide block; The left and right sides, middle part of lance bar has left cut mouth and right cut mouth respectively, the right flank of left cut mouth is the oblique left tilted surface of square neck to left down, the left surface of right cut mouth is the right tilted surface that tilts to the lower right, left side slide rail and right slide rail are fixedly mounted on left tilted surface and the right tilted surface by left locking plate and right locking plate respectively, on the slide rail of a left side left slider that can slide to left cut mouth bottom down and protrude lance bar left surface is installed, on the right slide rail the right slide block that can slide to right cut mouth bottom down and protrude lance bar right flank is installed, be distributed with left latch on the left surface of left slider, be distributed with right latch on the right flank of right slide block.
Above-mentioned leather cup drive unit can comprise that the fluid power that is no less than one drives leather cup, corresponding each fluid power in the outside, bottom of intermediate bar drives the leather cup lower end position and is fixed with the leather cup positive stop lug boss respectively, cup-shaped fluid power drives the upper end external diameter of leather cup greater than the lower end external diameter, the inner chamber of fluid power driving leather cup drives leather cup by fluid power upper end open is connected with fluid power driving leather cup outside, there is the leather cup installing hole at the middle part, lower surface that fluid power drives leather cup, each fluid power drives leather cup and is sleeved on the outside, intermediate bar bottom by the leather cup installing hole respectively, and the lower surface of each fluid power driving leather cup holds out against respectively on the upper surface of the leather cup positive stop lug boss of correspondence.
The above-mentioned positioner of going up can comprise connector, taper give up a packing element and an awl tube nut; The bottom of connector is fixedly mounted on intermediate bar top, and there is the joint limiting stand in the outside, middle part of connector, and there is joint screw thread in the connector outside of joint limiting stand top; Taper is given up the upper end external diameter of packing element greater than the lower end external diameter, the give up inner chamber of packing element of taper is connected by taper upper end open and the taper of the packing element packing element outside of giving up of giving up, there is an awl tube installing hole at the give up lower surface middle part of packing element of taper, the give up outer lower portion of packing element of taper has up big and down small awl tube locating surface, the taper packing element of giving up is sleeved on the connector outside by an awl tube installing hole, the give up lower surface of packing element of taper holds out against on the upper surface of joint limiting stand, there is nut bore at the middle part of awl tube nut and is fixedly mounted on the connector by joint screw thread, and the lower surface of awl tube nut is pressed on taper and gives up on the lower surface of packing element inner chamber.
Above-mentioned going up between positioner below and the intermediate bar top can have auxiliary sealing device, and auxiliary sealing device can comprise glue tube base and the auxiliary seal packing element that is no less than two; The cylinder base screw is arranged on the upper surface of glue tube base, and the upper outside of glue tube base has the cylinder base boss, and the cylinder base double-screw bolt is arranged at the bottom of glue tube base; Be positioned at the upper end that the cylinder base double-screw bolt of the glue tube base bottom of below is fixedly mounted on intermediate bar, the cylinder base double-screw bolt that is positioned at the glue tube base bottom of top is fixedly mounted on the cylinder base screw of the glue tube base that is positioned at the below, and the connector bottom is fixedly mounted on the cylinder base screw of the glue tube base that is positioned at the top; Be separately installed with the auxiliary seal packing element on each glue tube base, the lower end external diameter of auxiliary seal packing element that is down cup-shaped is greater than the upper end external diameter, the inner chamber of auxiliary seal packing element is connected with the outside of auxiliary seal packing element by the lower ending opening of auxiliary seal packing element, there is the packing element installing hole at the middle part, upper surface of auxiliary seal packing element, each auxiliary seal packing element is sleeved on the outside, middle part of place glue tube base respectively by the packing element installing hole, the upper surface of each auxiliary seal packing element holds out against respectively on the cylinder base boss lower surface of place glue tube base.
Can there be the king-rod external screw thread in the outside, bottom of above-mentioned intermediate bar, the king-rod screw is arranged on the upper surface of intermediate bar, there is lance bar screw the upper end of lance bar, the intermediate bar bottom is fixedly mounted on lance bar upper end by king-rod external screw thread and lance bar screw, and being positioned at, the cylinder base double-screw bolt of the glue tube base bottom of below is fixedly mounted on the intermediate bar screw.
Can there be the up big and down small guiding conical surface in the outside, bottom of above-mentioned lance bar, and can there be last connecting thread in the outside, upper end of connector.
Reasonable and compact in structure of the present invention, easy to use, its by on carry and left slider and right slide block moved down protrude the lance bar outside and be stuck on the inwall of oil pipe, give up packing element and auxiliary seal packing element of taper simultaneously strutting and is being stuck under the effect of pulling force on the inwall of oil pipe, play effect to the oil pipe inner sealing, have simple in structure, cost is low, the characteristics of safe and reliable, simple and effective.
Description of drawings
Accompanying drawing 1 is the main TV structure schematic diagram of most preferred embodiment of the present invention.
Accompanying drawing 2 is the left TV structure schematic diagram of accompanying drawing 1.
Coding in the accompanying drawing is respectively: 1 is intermediate bar, and 2 is the lance bar, and 3 is left slide rail, and 4 is right slide rail, 5 is left locking plate, and 6 is right locking plate, and 7 is left slider, and 8 is right slide block, 9 are the left cut mouth, and 10 are the right cut mouth, and 11 is left latch, and 12 is right latch, 13 for fluid power drives leather cup, and 14 is the leather cup positive stop lug boss, and 15 is connector, 16 are the taper packing element of giving up, and 17 are an awl tube locating surface, and 18 is glue tube base, 19 is the auxiliary seal packing element, and 20 is the cylinder base boss, and 21 are the guiding conical surface.
The specific embodiment
The present invention is not subjected to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
In the present invention, for convenience of description, the description of the relative position relation of each parts all is that the Butut mode according to Figure of description is described, as: upper and lower, about etc. the position relation be what to determine according to the Butut direction of Figure of description.
Below in conjunction with most preferred embodiment and accompanying drawing the present invention is further described:
Shown in accompanying drawing 1,2, this taper releasing type tubing plug comprises that slide block drags for lance positioner, intermediate bar 1, leather cup drive unit and last positioner; The upper end that slide block drags for the lance positioner is installed with intermediate bar 1, and the outer lower portion of intermediate bar 1 is installed with the leather cup drive unit, and the top of intermediate bar 1 is installed with positioner.
Can according to actual needs above-mentioned taper releasing type tubing plug be made further optimization and/or improvements:
Shown in accompanying drawing 1,2, slide block drags for the lance positioner and comprises lance bar 2, left slide rail 3, right slide rail 4, left locking plate 5, right locking plate 6, left slider 7 and right slide block 8; The left and right sides, middle part of lance bar 2 has left cut mouth 9 and right cut mouth 10 respectively, the right flank of left cut mouth 9 is the oblique left tilted surface of square neck to left down, the left surface of right cut mouth 10 is the right tilted surface that tilts to the lower right, left side slide rail 3 and right slide rail 4 are fixedly mounted on left tilted surface and the right tilted surface by left locking plate 5 and right locking plate 6 respectively, on the slide rail 3 of a left side left slider 7 that can slide to left cut mouth 9 bottoms down and protrude lance bar 2 left surfaces is installed, on the right slide rail 4 the right slide block 8 that can slide to right cut mouth 10 bottoms down and protrude lance bar 2 right flanks is installed, be distributed with left latch 11 on the left surface of left slider 7, be distributed with right latch 12 on the right flank of right slide block 8.Slide block drags for the lance positioner and is used for the present invention is fixed on tube inner wall, prevents that the present invention from moving upward under the effect of borehole pressure; By left latch 11 and right latch 12, left slider 7 and right slide block 8 can be clamped on respectively on the inner left wall and right side inwall of oil pipe.
As accompanying drawing 1, shown in 2, the leather cup drive unit comprises that the fluid power that is no less than one drives leather cup 13, corresponding each fluid power in the outside, bottom of intermediate bar 1 drives leather cup 13 lower end positions and is fixed with leather cup positive stop lug boss 14 respectively, cup-shaped fluid power drives the upper end external diameter of leather cup 13 greater than the lower end external diameter, the inner chamber of fluid power driving leather cup 13 drives leather cup 13 by fluid power upper end open is connected with fluid power driving leather cup 13 outsides, there is the leather cup installing hole at the middle part, lower surface that fluid power drives leather cup 13, each fluid power drives leather cup 13 and is sleeved on the outside, intermediate bar 1 bottom by the leather cup installing hole respectively, and the lower surface of each fluid power driving leather cup 13 holds out against respectively on the upper surface of the leather cup positive stop lug boss 14 of correspondence.Fluid power drives leather cup 13 under the effect of top hydraulic pressure, can produce down thrust, and the present invention's assigned address is downwards carried.
Shown in accompanying drawing 1,2, last positioner comprises connector 15, taper give up a packing element 16 and an awl tube nut; The bottom of connector 15 is fixedly mounted on intermediate bar 1 top, and there is the joint limiting stand in the outside, middle part of connector 15, and there is joint screw thread in the connector outside of joint limiting stand top; Taper is given up the upper end external diameter of packing element 16 greater than the lower end external diameter, the give up inner chamber of packing element 16 of taper is connected by taper upper end open and the taper of packing element 16 packing element 16 outsides of giving up of giving up, there is an awl tube installing hole at the give up lower surface middle part of packing element 16 of taper, the give up outer lower portion of packing element 16 of taper has up big and down small awl tube locating surface 17, the taper packing element 16 of giving up is sleeved on connector 15 outsides by an awl tube installing hole, the give up lower surface of packing element 16 of taper holds out against on the upper surface of joint limiting stand, there is nut bore at the middle part of awl tube nut and is fixedly mounted on the connector 15 by joint screw thread, and the lower surface of awl tube nut is pressed on taper and gives up on the lower surface of packing element 16 inner chambers.The taper packing element 16 of giving up can either seal to the oil pipe inner chamber, can drag for the lance positioner to intermediate bar 1, leather cup drive unit and the slide block of below again and play the suspension effect, be used for the present invention is fixed on tube inner wall, prevent that in work progress the present invention is subjected to move downward after interior head of liquid of well and the vibration.
Shown in accompanying drawing 1,2, between last positioner below and intermediate bar 1 top auxiliary sealing device is arranged, auxiliary sealing device comprises glue tube base 18 and the auxiliary seal packing element 19 that is no less than two; The cylinder base screw is arranged on the upper surface of glue tube base 18, and the upper outside of glue tube base 18 has cylinder base boss 20, and the cylinder base double-screw bolt is arranged at the bottom of glue tube base 18; Be positioned at the upper end that the cylinder base double-screw bolt of glue tube base 18 bottoms of below is fixedly mounted on intermediate bar 1, be positioned at the top glue tube base 18 bottoms the cylinder base double-screw bolt be fixedly mounted on the cylinder base screw of glue tube base 18 that is positioned at the below, connector 15 bottoms are fixedly mounted on the cylinder base screw of the glue tube base 18 that is positioned at the top; Be separately installed with auxiliary seal packing element 19 on each glue tube base 18, the lower end external diameter of auxiliary seal packing element 19 that is down cup-shaped is greater than the upper end external diameter, the inner chamber of auxiliary seal packing element 19 is connected with the outside of auxiliary seal packing element 19 by the lower ending opening of auxiliary seal packing element 19, there is the packing element installing hole at the middle part, upper surface of auxiliary seal packing element 19, each auxiliary seal packing element 19 is sleeved on the outside, middle part of place glue tube base 18 respectively by the packing element installing hole, the upper surface of each auxiliary seal packing element 19 holds out against respectively on cylinder base boss 20 lower surfaces of place glue tube base 18.Auxiliary seal packing element 19 can be at the taper further Seal Oil tube cavity of packing element 16 sealing back of giving up.
Shown in accompanying drawing 1,2, there is the king-rod external screw thread in the outside, bottom of intermediate bar 1, the king-rod screw is arranged on the upper surface of intermediate bar 1, there is lance bar screw the upper end of lance bar 2, intermediate bar 1 bottom is fixedly mounted on lance bar 2 upper ends by king-rod external screw thread and lance bar screw, and being positioned at, the cylinder base double-screw bolt of glue tube base 18 bottoms of below is fixedly mounted on the intermediate bar screw.
Shown in accompanying drawing 1,2, there is the up big and down small guiding conical surface 21 in the outside, the bottom of lance bar 2, and there is last connecting thread in the outside, upper end of connector 15.
Above technical characterictic has constituted most preferred embodiment of the present invention, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The course of work of most preferred embodiment of the present invention is: at first, by linkage the present invention is connected with bumper jar, weighted lever, steel wire or cable or little oil pipe; Secondly, by steel wire or cable or little oil pipe traction, pump truck is suppressed, and the 13 drive the present invention of fluid power driving leather cup move down into the assigned address in the oil pipe under the hydraulic thrust effect; Then, on propose the present invention, under the effect of borehole pressure and upper lifting force, left slider 7 and right slide block 8 move down along left slide rail 3 and right slide rail 4 respectively, until the inner chamber bottom that arrives left cut mouth 9 and right cut mouth 10, the left slider 7 and right slide block 8 outsides are protruded lance bar 2 outsides and are stuck on the tube inner wall, the present invention can't be moved upward, simultaneously, the taper packing element 16 of giving up struts under the hydraulic thrust effect of top, break away from bumper jar, weighted lever, steel wire or cable or little oil pipe and be stuck on the inwall of oil pipe, each auxiliary seal packing element 19 also struts under the hydraulic thrust effect respectively; At last, the present invention can't downwards and move downward, and is fixed on oil pipe inside and makes the oil pipe internal blocking, thereby sealing function is played in oil pipe inside.
Claims (10)
1. a taper releasing type tubing plug is characterized in that comprising that slide block drags for lance positioner, intermediate bar, leather cup drive unit and last positioner; The upper end that slide block drags for the lance positioner is installed with intermediate bar, and the outer lower portion of intermediate bar is installed with the leather cup drive unit, and the top of intermediate bar is installed with positioner.
2. taper releasing type tubing plug according to claim 1 is characterized in that slide block drags for the lance positioner and comprises lance bar, left slide rail, right slide rail, left locking plate, right locking plate, left slider and right slide block; The left and right sides, middle part of lance bar has left cut mouth and right cut mouth respectively, the right flank of left cut mouth is the oblique left tilted surface of square neck to left down, the left surface of right cut mouth is the right tilted surface that tilts to the lower right, left side slide rail and right slide rail are fixedly mounted on left tilted surface and the right tilted surface by left locking plate and right locking plate respectively, on the slide rail of a left side left slider that can slide to left cut mouth bottom down and protrude lance bar left surface is installed, on the right slide rail the right slide block that can slide to right cut mouth bottom down and protrude lance bar right flank is installed, be distributed with left latch on the left surface of left slider, be distributed with right latch on the right flank of right slide block.
3. taper releasing type tubing plug according to claim 1 and 2, it is characterized in that the leather cup drive unit comprises that the fluid power that is no less than one drives leather cup, corresponding each fluid power in the outside, bottom of intermediate bar drives the leather cup lower end position and is fixed with the leather cup positive stop lug boss respectively, cup-shaped fluid power drives the upper end external diameter of leather cup greater than the lower end external diameter, the inner chamber of fluid power driving leather cup drives leather cup by fluid power upper end open is connected with fluid power driving leather cup outside, there is the leather cup installing hole at the middle part, lower surface that fluid power drives leather cup, each fluid power drives leather cup and is sleeved on the outside, intermediate bar bottom by the leather cup installing hole respectively, and the lower surface of each fluid power driving leather cup holds out against respectively on the upper surface of the leather cup positive stop lug boss of correspondence.
4. taper releasing type tubing plug according to claim 1 and 2 is characterized in that positioner comprises connector, taper give up a packing element and an awl tube nut; The bottom of connector is fixedly mounted on intermediate bar top, and there is the joint limiting stand in the outside, middle part of connector, and there is joint screw thread in the connector outside of joint limiting stand top; Taper is given up the upper end external diameter of packing element greater than the lower end external diameter, the give up inner chamber of packing element of taper is connected by taper upper end open and the taper of the packing element packing element outside of giving up of giving up, there is an awl tube installing hole at the give up lower surface middle part of packing element of taper, the give up outer lower portion of packing element of taper has up big and down small awl tube locating surface, the taper packing element of giving up is sleeved on the connector outside by an awl tube installing hole, the give up lower surface of packing element of taper holds out against on the upper surface of joint limiting stand, there is nut bore at the middle part of awl tube nut and is fixedly mounted on the connector by joint screw thread, and the lower surface of awl tube nut is pressed on taper and gives up on the lower surface of packing element inner chamber.
5. taper releasing type tubing plug according to claim 3 is characterized in that positioner comprises connector, taper give up a packing element and an awl tube nut; The bottom of connector is fixedly mounted on intermediate bar top, and there is the joint limiting stand in the outside, middle part of connector, and there is joint screw thread in the connector outside of joint limiting stand top; Taper is given up the upper end external diameter of packing element greater than the lower end external diameter, the give up inner chamber of packing element of taper is connected by taper upper end open and the taper of the packing element packing element outside of giving up of giving up, there is an awl tube installing hole at the give up lower surface middle part of packing element of taper, the give up outer lower portion of packing element of taper has up big and down small awl tube locating surface, the taper packing element of giving up is sleeved on the connector outside by an awl tube installing hole, the give up lower surface of packing element of taper holds out against on the upper surface of joint limiting stand, there is nut bore at the middle part of awl tube nut and is fixedly mounted on the connector by joint screw thread, and the lower surface of awl tube nut is pressed on taper and gives up on the lower surface of packing element inner chamber.
6. taper releasing type tubing plug according to claim 1 and 2 is characterized in that between positioner below and the intermediate bar top auxiliary sealing device being arranged, and auxiliary sealing device comprises glue tube base and the auxiliary seal packing element that is no less than two; The cylinder base screw is arranged on the upper surface of glue tube base, and the upper outside of glue tube base has the cylinder base boss, and the cylinder base double-screw bolt is arranged at the bottom of glue tube base; Be positioned at the upper end that the cylinder base double-screw bolt of the glue tube base bottom of below is fixedly mounted on intermediate bar, the cylinder base double-screw bolt that is positioned at the glue tube base bottom of top is fixedly mounted on the cylinder base screw of the glue tube base that is positioned at the below, and the connector bottom is fixedly mounted on the cylinder base screw of the glue tube base that is positioned at the top; Be separately installed with the auxiliary seal packing element on each glue tube base, the lower end external diameter of auxiliary seal packing element that is down cup-shaped is greater than the upper end external diameter, the inner chamber of auxiliary seal packing element is connected with the outside of auxiliary seal packing element by the lower ending opening of auxiliary seal packing element, there is the packing element installing hole at the middle part, upper surface of auxiliary seal packing element, each auxiliary seal packing element is sleeved on the outside, middle part of place glue tube base respectively by the packing element installing hole, the upper surface of each auxiliary seal packing element holds out against respectively on the cylinder base boss lower surface of place glue tube base.
7. taper releasing type tubing plug according to claim 4 is characterized in that between positioner below and the intermediate bar top auxiliary sealing device being arranged, and auxiliary sealing device comprises glue tube base and the auxiliary seal packing element that is no less than two; The cylinder base screw is arranged on the upper surface of glue tube base, and the upper outside of glue tube base has the cylinder base boss, and the cylinder base double-screw bolt is arranged at the bottom of glue tube base; Be positioned at the upper end that the cylinder base double-screw bolt of the glue tube base bottom of below is fixedly mounted on intermediate bar, the cylinder base double-screw bolt that is positioned at the glue tube base bottom of top is fixedly mounted on the cylinder base screw of the glue tube base that is positioned at the below, and the connector bottom is fixedly mounted on the cylinder base screw of the glue tube base that is positioned at the top; Be separately installed with the auxiliary seal packing element on each glue tube base, the lower end external diameter of auxiliary seal packing element that is down cup-shaped is greater than the upper end external diameter, the inner chamber of auxiliary seal packing element is connected with the outside of auxiliary seal packing element by the lower ending opening of auxiliary seal packing element, there is the packing element installing hole at the middle part, upper surface of auxiliary seal packing element, each auxiliary seal packing element is sleeved on the outside, middle part of place glue tube base respectively by the packing element installing hole, the upper surface of each auxiliary seal packing element holds out against respectively on the cylinder base boss lower surface of place glue tube base.
8. taper releasing type tubing plug according to claim 5 is characterized in that between positioner below and the intermediate bar top auxiliary sealing device being arranged, and auxiliary sealing device comprises glue tube base and the auxiliary seal packing element that is no less than two; The cylinder base screw is arranged on the upper surface of glue tube base, and the upper outside of glue tube base has the cylinder base boss, and the cylinder base double-screw bolt is arranged at the bottom of glue tube base; Be positioned at the upper end that the cylinder base double-screw bolt of the glue tube base bottom of below is fixedly mounted on intermediate bar, the cylinder base double-screw bolt that is positioned at the glue tube base bottom of top is fixedly mounted on the cylinder base screw of the glue tube base that is positioned at the below, and the connector bottom is fixedly mounted on the cylinder base screw of the glue tube base that is positioned at the top; Be separately installed with the auxiliary seal packing element on each glue tube base, the lower end external diameter of auxiliary seal packing element that is down cup-shaped is greater than the upper end external diameter, the inner chamber of auxiliary seal packing element is connected with the outside of auxiliary seal packing element by the lower ending opening of auxiliary seal packing element, there is the packing element installing hole at the middle part, upper surface of auxiliary seal packing element, each auxiliary seal packing element is sleeved on the outside, middle part of place glue tube base respectively by the packing element installing hole, the upper surface of each auxiliary seal packing element holds out against respectively on the cylinder base boss lower surface of place glue tube base.
9. taper releasing type tubing plug according to claim 8, there is the king-rod external screw thread in the outside, bottom that it is characterized in that intermediate bar, the king-rod screw is arranged on the upper surface of intermediate bar, there is lance bar screw the upper end of lance bar, the intermediate bar bottom is fixedly mounted on lance bar upper end by king-rod external screw thread and lance bar screw, and being positioned at, the cylinder base double-screw bolt of the glue tube base bottom of below is fixedly mounted on the intermediate bar screw.
10. taper releasing type tubing plug according to claim 9 is characterized in that there is the up big and down small guiding conical surface in the outside, bottom of lance bar, and there is last connecting thread in the outside, upper end of connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010617295.9A CN102116138B (en) | 2010-12-31 | 2010-12-31 | Tapered release type tubing plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010617295.9A CN102116138B (en) | 2010-12-31 | 2010-12-31 | Tapered release type tubing plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102116138A true CN102116138A (en) | 2011-07-06 |
| CN102116138B CN102116138B (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010617295.9A Active CN102116138B (en) | 2010-12-31 | 2010-12-31 | Tapered release type tubing plug |
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| Country | Link |
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| CN (1) | CN102116138B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102953910A (en) * | 2012-11-15 | 2013-03-06 | 中国石油集团西部钻探工程有限公司 | Hydraulic propeller for fishing spear |
| CN108716374A (en) * | 2018-03-28 | 2018-10-30 | 中海油能源发展股份有限公司 | A kind of special running tool of well completion packer blanking plug |
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| US6050336A (en) * | 1996-10-25 | 2000-04-18 | Baker Hughes Incorporated | Method and apparatus to isolate a specific zone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953910A (en) * | 2012-11-15 | 2013-03-06 | 中国石油集团西部钻探工程有限公司 | Hydraulic propeller for fishing spear |
| CN108716374A (en) * | 2018-03-28 | 2018-10-30 | 中海油能源发展股份有限公司 | A kind of special running tool of well completion packer blanking plug |
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| Publication number | Publication date |
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| CN102116138B (en) | 2014-01-01 |
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