CN103293062A - Test detecting tool for compression-type packer rubber sleeves - Google Patents
Test detecting tool for compression-type packer rubber sleeves Download PDFInfo
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- CN103293062A CN103293062A CN2013101638180A CN201310163818A CN103293062A CN 103293062 A CN103293062 A CN 103293062A CN 2013101638180 A CN2013101638180 A CN 2013101638180A CN 201310163818 A CN201310163818 A CN 201310163818A CN 103293062 A CN103293062 A CN 103293062A
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Abstract
The invention discloses a test detecting tool for compression-type packer rubber sleeves. The test detecting tool comprises a center tube (1), a deblocking tube (24) and a canister-shaped hydraulic cylinder sleeve (10). The right end of the hydraulic cylinder sleeve (10) is in seal connection with the deblocking tube (24) by a canister-shaped connecting ring (16); a closed annular cavity (26) is formed between the hydraulic cylinder sleeve (10) and the center tube (1); a canister-shaped piston (13) and a measuring ring (11) which is sleeved outside the deblocking tube (24) are disposed in the annular cavity (26); the piston (13) can push a baffle ring (5), a piston rod (7) and the measuring ring (11) to slide along the axis of the center tube (1); and a through hole (27) is disposed on the sidewall of the deblocking tube (24) and between the piston (13) and the connecting ring (16). The test detecting tool of the compression-type packer rubber sleeves not only can detect a plurality types of packer rubber sleeves, but also has the advantages of simple detection mode, high efficiency, high accuracy, low cost and the like.
Description
Technical field
The present invention relates to a kind of test testing tool of the compression type packer tubling that in the oil field, uses.
Background technology
Packer is one of necessary tool in the petroleum production engineering of oil field, and packing element is the core component of packer.Therefore the sealing property of packing element is the key that guarantees the packer success.Conventional packer can be divided into two types of compression and expandings.For the packing element to packer detects, Chinese patent CN2580434Y, open October 15 2003 date, " packing element pressure testing device " disclosed, Chinese patent CN201372765Y on open Dec 30 2009 date, discloses " packing element test unit ".But there is the shortcoming that measuring accuracy is not high, use inconvenience etc. in above-mentioned packing element test unit.
Summary of the invention
In order to solve the technical matters of packing element test unit measuring accuracy difference in the prior art, the invention provides a kind of test testing tool of compression type packer tubling, the test testing tool of this compression type packer tubling not only can detect the packing element of a plurality of models, the utilization factor of raising instrument, saved and produced old, had more advantages such as detection mode is simple, reliable, accurate.
The present invention for the technical scheme that solves its technical matters employing is: a kind of test testing tool of compression type packer tubling, comprise pipe core, separate the fluid cylinder overcoat of tube sealing and tubular, the left end of separating tube sealing is fixedly sleeved in the right-hand member of pipe core, the fluid cylinder overcoat is sheathed on to be separated outside the tube sealing, the external diameter of pipe core is less than the internal diameter of fluid cylinder overcoat, the left end of fluid cylinder overcoat and the right-hand member that is set in described pipe core baffle ring butt outward, the right-hand member of fluid cylinder overcoat is connected with the deblocking seal of tube by the abutment ring of tubular, and the fluid cylinder overcoat is fixedlyed connected with abutment ring, form the toroidal cavity of sealing between fluid cylinder overcoat and the pipe core, be provided with the piston of tubular in the toroidal cavity and be sheathed on and separate the outer measurement ring of tube sealing, the left end of ring piston bar is sheathed on outside the right-hand member of pipe core, the external diameter of piston rod is less than the internal diameter of fluid cylinder overcoat, and piston rod is fixedlyed connected with baffle ring, the right-hand member of piston rod is fixedlyed connected with piston, piston can promote baffle ring, piston rod and measurement ring slide along the axis of pipe core, between piston and abutment ring, the sidewall of separating tube sealing is provided with through hole, in the pipe core of the right side of through hole, be provided with the seal head for sealing, the fixedly sleeved fixedly regulating ring of packing element that is useful on outside the left end of pipe core.
The internal diameter of measuring ring equals to separate the external diameter of tube sealing, measures ring and is the retaining ring, measures ring and is merely able to unidirectional slip from right to left.
In toroidal cavity, separate the outer push rod that is arranged with tubular of tube sealing, the left end of push rod and measurement ring butt, the right-hand member of push rod is fixedlyed connected with piston.
Between the left end of piston and fluid cylinder overcoat, the inside surface of fluid cylinder overcoat is provided with first raised ring, first raised ring and baffle ring between, piston rod is arranged with retaining ring outward, the internal diameter of retaining ring equals the external diameter of piston rod, the external diameter of retaining ring is less than the internal diameter of fluid cylinder overcoat, and retaining ring is the retaining ring, and retaining ring is merely able to unidirectional slip from right to left.
Separate the right-hand member of tube sealing for dividing the claw structure, be arranged with stay pipe in the right-hand member of solution tube sealing, the outside surface of the right-hand member of stay pipe is provided with second raised ring, the external diameter of second raised ring equals the internal diameter of branch claw structure, the left end of stay pipe is fixedlyed connected with seal head, the right-hand member of separating tube sealing is arranged with the fixed cover of tubular outward, the left end of fixed cover is fixedlyed connected with abutment ring, be provided with the 3rd raised ring in the fixed cover, the internal diameter of the 3rd raised ring and the outside surface that divides the claw structure are by being threaded, and stay pipe is connected by shear pin with the solution tube sealing.
The right-hand member of fixed cover is provided with plug, and plug is fixedlyed connected with fixed cover.
Between the left end of minute claw structure and fixed cover, separate the outer fixedly sleeved restraining position ring block of tube sealing, the external diameter of spacing ring is less than the internal diameter of fixed cover.
Between the left end of minute claw structure and stay pipe, the outside surface of stay pipe is provided with the 4th raised ring, and the 4th raised ring is connected by shear pin with the solution tube sealing.
Baffle ring is connected by shear pin with pipe core.
Between baffle ring and regulating ring, pipe core is arranged with a plurality of for the spacer ring of isolating packing element outward.
The invention has the beneficial effects as follows:
1, the test testing tool of this compression type packer tubling can realize that kit detects a plurality of model packing elements, the utilization factor height of instrument, and use cost is low.
2, the detection mode of the test testing tool of this compression type packer tubling is simple, reliable, accurate, does not have the dispute point.
3, the test testing tool of this compression type packer tubling not only can detect at normal temperatures, and can realize that 350 ℃ high temperature oil immersion detects.
Description of drawings
Be described in further detail below in conjunction with the test testing tool of accompanying drawing to compression type packer tubling of the present invention.
Fig. 1 is the structural representation of test testing tool of the present invention.
Fig. 2 is the structural representation at test testing tool right-hand member fixed cover of the present invention position.
Fig. 3 is the perspective view of separating tube sealing.
Wherein 1. pipe cores, 2. regulating ring, 3. packing element, 4. spacer ring, 5. baffle ring, 6. shear pin, 7. piston rod, 8. set collar, 9. retaining ring, 10. fluid cylinder overcoat, 101. first raised rings, 11. measure ring, 12. push rods, 13. pistons, 14. O-ring seal, 15. O-ring seals, 16. abutment rings, 17. O-ring seal, 18. fixed covers, 181. the 3rd raised rings, 19. O-ring seal, 20. seal heads, 21. shear pins, 22. spacing ring, 23. stay pipes, 231. second raised rings, 232. the 4th raised ring, 24. separate tube sealing, 241. fens claw structures, 25. plug, 26. toroidal cavities, 27. through holes.
Embodiment
Be elaborated below in conjunction with the test testing tool of accompanying drawing to compression type packer tubling of the present invention.A kind of test testing tool of compression type packer tubling, the test testing tool of described compression type packer tubling comprises pipe core 1, separate the fluid cylinder overcoat 10 of tube sealing 24 and tubular, the left end of separating tube sealing 24 is fixedly sleeved in the right-hand member of pipe core 1, fluid cylinder overcoat 10 is sheathed on to be separated outside the tube sealing 24, the external diameter of pipe core 1 is less than the internal diameter of fluid cylinder overcoat 10, the left end of fluid cylinder overcoat 10 and the right-hand member that is set in described pipe core 1 baffle ring 5 butts outward, the right-hand member of fluid cylinder overcoat 10 is tightly connected with solution tube sealing 24 by the abutment ring 16 of tubular, and fluid cylinder overcoat 10 is fixedlyed connected with abutment ring 16, form the toroidal cavity 26 of sealing between fluid cylinder overcoat 10 and the pipe core 1, be provided with the piston 13 of tubular in the toroidal cavity 26 and be sheathed on the measurement ring of separating outside the tube sealing 24 11, the left end of ring piston bar 7 is sheathed on outside the right-hand member of pipe core 1, the external diameter of piston rod 7 is less than the internal diameter of fluid cylinder overcoat 10, and piston rod 7 is fixedlyed connected with baffle ring 5, the right-hand member of piston rod 7 is fixedlyed connected with piston 13, piston 13 can promote baffle ring 5, piston rod 7 and measurement ring 11 slide along the axis of pipe core 1, between piston 13 and abutment ring 16, the sidewall of separating tube sealing 24 is provided with through hole 27, in the right side of through hole 27 pipe core 1, be provided with the seal head 20 for sealing, the fixedly sleeved fixedly regulating ring 2 of packing element 3 that is useful on outside the left end of pipe core 1, as shown in Figure 1.
During use packing element 3 to be measured is set in outside the pipe core 1 according to shown in Figure 1, test testing tool with this compression type packer tubling is connected in test pit or the test casing again, be connected by the left end of hydraulic pump with pipe core 1, apply certain pressure, liquid enters fluid cylinder overcoat 10 by through hole 27, separate tube sealing 24, in the closed chamber that piston 13 and abutment ring 16 form, hydraulic drive piston 13 also drives piston rod 7, measure ring 11 and shelves ring 5 to left movement, packing element 3 is also promoted to be moved to the left by shelves ring 5 simultaneously, be compressed to the tonnage of appointment up to packing element 3, voltage stabilizing 5min treats that packing element 3 sets fully.Can judge the sealing situation of the compression tonnage lower rubber cylinder 3 of appointment this moment, and the distance of sliding left before and after exerting pressure by measurement ring 11 can also draw compression distance and corresponding key indexs such as pressure-bearing situation under this compression tonnage.Compression tonnage and pressure-bearing data can be directly fluid cylinder area by the test testing tool of the manometric reading of hydraulic pump and this compression type packer tubling calculate.
The internal diameter of measuring ring 11 equals to separate the external diameter of tube sealing 24, and measuring ring 11 is the retaining ring, measures ring 11 and is merely able to unidirectional slip from right to left.The design of measuring ring 11 is in order accurately to measure the compression distance of compression packing element 3, measurement ring 11 back measuring accuracy to be set can to reach 1mm.And in toroidal cavity 26, separate the push rod that is arranged with tubular 12 outside the tube sealing 24, the left end of push rod 12 and measurement ring 11 butts, the right-hand member of push rod 12 is fixedlyed connected with piston 13.
Between the left end of piston 13 and fluid cylinder overcoat 10, the inside surface of fluid cylinder overcoat 10 is provided with first raised ring 101, first raised ring 101 and baffle ring 5 between, the piston rod 7 outer retaining rings 9 that are arranged with, the internal diameter of retaining ring 9 equals the external diameter of piston rod 7, the external diameter of retaining ring 9 is less than the internal diameter of fluid cylinder overcoat 10, and retaining ring 9 is the retaining ring, and retaining ring 9 is merely able to unidirectional slip from right to left.The design of retaining ring 9 has guaranteed that packing element 3 after compressed rollback does not take place, be applied with press and press down in, packing element 3 still can reach seal request.Between retaining ring 9 and baffle ring 5, also be provided with the set collar 8 for fixing and locking ring 9, set collar 8 is fixedlyed connected with fluid cylinder overcoat 10.
For the ease of after the pressure release packing element 3 being taken out and measures the sliding distance of ring 11, separate the right-hand member of tube sealing 24 for dividing claw structure 241, be arranged with stay pipe 23 in the right-hand member of solution tube sealing 24, the outside surface of the right-hand member of stay pipe 23 is provided with second raised ring 231, the external diameter of second raised ring 231 equals the internal diameter of branch claw structure 241, the left end of stay pipe 23 is fixedlyed connected with seal head 20, the right-hand member of separating tube sealing 24 is arranged with the fixed cover 18 of tubular outward, the left end of fixed cover 18 is fixedlyed connected with abutment ring 16, be provided with the 3rd raised ring 181 in the fixed cover 18, the internal diameter of the 3rd raised ring 181 and the outside surface that divides claw structure 241 are by being threaded, stay pipe 23 is connected by shear pin 21 with solution tube sealing 24, as Fig. 2, shown in Figure 3.When the needs deblocking, insert push rod from left to right in the left end of pipe core 1 and promote seal head 20 and stay pipe 23 is cut off part shear pin 21, and continue to move right, when second raised ring 231 separates with a minute claw structure 241, divide the screw thread of claw structure 241 outside surfaces will lose support, apply certain power the screw thread of branch claw structure 241 outside surfaces is connected with the internal thread disengagement of the inside surface of the 3rd raised ring 181.Thereby fixed cover 18, abutment ring 16, fluid cylinder overcoat 10, piston 13, push rod 12, piston rod 7 and shelves ring 5 are moved right together, then packing element 3 deblocking fully.
The right-hand member of fixed cover 18 is provided with plug 25, and plug 25 is fixedlyed connected with fixed cover 18.25 position-limiting actions of plug, when stay pipe 23 moved right the top to plug 25, seal head 20 and stay pipe 23 will no longer can continue to move right.
Between the left end of minute claw structure 241 and fixed cover 18, separate tube sealing 24 outer fixedly sleeved restraining position ring blocks 22, the external diameter of spacing ring 22 is less than the internal diameter of fixed cover 18.When deblocking, after abutment ring 16 pushed up spacing ring 22 to the right, fixed cover 18, abutment ring 16, fluid cylinder overcoat 10, piston 13, push rod 12, piston rod 7 and shelves ring 5 will no longer can continue to move right.
Between the left end of minute claw structure 241 and stay pipe 23, the outside surface of stay pipe 23 is provided with the 4th raised ring 232, the four raised rings 232 and is connected by shear pin 21 with solution tube sealing 24.
In addition, baffle ring 5 is connected by shear pin 6 with pipe core 1.Between baffle ring 5 and regulating ring 2, be arranged with a plurality of for the spacer rings 4 of isolating packing element 3 outside the pipe core 1.In order to realize that the test testing tool of this compression type packer tubling detects the purpose of multiple packing element, pipe core 1, regulating ring 2, spacer ring 4 and shelves ring 5 can be selected corresponding size according to packing element 3 different internal diameters.Can satisfy the detection of multiple model packing elements such as Y111, Y211, Y221, Y341, Y441, Y445, Y521 and Y541.
Be tightly connected by O-ring seal 14 between fluid cylinder overcoat 10 and the piston 13, separate between tube sealing 24 and the piston 13 and be tightly connected by O-ring seal 15, abutment ring 16 is conciliate tube sealing 24 with fluid cylinder overcoat 10 respectively by O-ring seal 17 and is tightly connected, and seal head 20 is tightly connected by O-ring seal 19 and solution tube sealing 24.Above-mentioned O-ring seal all adopts the fluorine cushion rubber, can guarantee no disclosure risk point under 350 ℃ high temperature, satisfies the operating mode of high temperature oil immersion, can realize that the packing element under the high temperature detects.
The course of work of the test testing tool of this compression type packer tubling is as follows:
The test testing tool of this compression type packer tubling is measured the initial position of ring 11 according to assembling record shown in Figure 1, test testing tool with this compression type packer tubling is connected in test pit or the test casing again, be connected with pipe core 1 by hydraulic pump, apply certain pressure, liquid enters described closed chamber by part through hole 27, and hydraulic drive piston 13 drives piston rod 7, push rod 12 and shelves ring 5 and cuts off part shear pin 6 to left movement.Shelves ring 5 promotes packing elements 3 and spacer ring 4 and is compressed to the tonnage of appointment up to packing element 3, can directly measure packing element by hydraulic pump and set tonnage and pressure-bearing data.Treat packing element test press and press down after, insert push rod from pipe core 1 left end and promote seal head 20 and stay pipe 23 and cut off shear pin 21 and continue to move right the top to part 25 plugs.Second raised ring 231 of stay pipe 23 separates with the branch claw structure 241 of separating tube sealing 24, after dividing claw structure 241 to lose support, branch claw structure 241 is thrown off with the 3rd raised ring 181 of fixed cover 18 to be connected, plug 25, fixed cover 18, abutment ring 16, fluid cylinder overcoat 10, piston 13, push rod 12, piston rod 7 and shelves ring 5 move right together then, withstand on the spacing ring 22 up to abutment ring 16.This moment three packing element 3 complete deblockings.Tripping out this test testing tool can carry out the outward appearance of packing element 3, takes this test testing tool apart and can learn the compression distance of packing element by the change in location of measuring ring 11, thereby reached the purpose that detects compression type packer tubling.
The above only is specific embodiments of the invention, can not limit the scope that invention is implemented with it, thus the displacement of its equivalent assemblies, or according to equivalent variations and modification that scope of patent protection of the present invention is done, all should still belong to the category that this patent is contained.
Claims (10)
1. the test testing tool of a compression type packer tubling, it is characterized in that: the test testing tool of described compression type packer tubling comprises pipe core (1), separate the fluid cylinder overcoat (10) of tube sealing (24) and tubular, the left end of separating tube sealing (24) is fixedly sleeved in the right-hand member of pipe core (1), fluid cylinder overcoat (10) is sheathed on to be separated outside the tube sealing (24), the external diameter of pipe core (1) is less than the internal diameter of fluid cylinder overcoat (10), the left end of fluid cylinder overcoat (10) and the right-hand member that is set in described pipe core (1) baffle ring (5) butt outward, the right-hand member of fluid cylinder overcoat (10) is tightly connected with solution tube sealing (24) by the abutment ring (16) of tubular, and fluid cylinder overcoat (10) is fixedlyed connected with abutment ring (16), form the toroidal cavity (26) of sealing between fluid cylinder overcoat (10) and the pipe core (1), be provided with the piston (13) of tubular in the toroidal cavity (26) and be sheathed on and separate the outer measurement ring (11) of tube sealing (24), the left end of ring piston bar (7) is sheathed on outside the right-hand member of pipe core (1), the external diameter of piston rod (7) is less than the internal diameter of fluid cylinder overcoat (10), and piston rod (7) is fixedlyed connected with baffle ring (5), the right-hand member of piston rod (7) is fixedlyed connected with piston (13), piston (13) can promote baffle ring (5), piston rod (7) and measurement ring (11) slide along the axis of pipe core (1), between piston (13) and abutment ring (16), the sidewall of separating tube sealing (24) is provided with through hole (27), in the right side pipe core (1) of through hole (27), be provided with the seal head (20) for sealing, the fixedly sleeved fixedly regulating ring (2) of packing element (3) that is useful on outside the left end of pipe core (1).
2. test testing tool according to claim 1 is characterized in that: the internal diameter of measuring ring (11) equals to separate the external diameter of tube sealing (24), and measuring ring (11) be the retaining ring, measures to encircle (11) and be merely able to unidirectional slip from right to left.
3. test testing tool according to claim 1, it is characterized in that: in toroidal cavity (26), separate the outer push rod that is arranged with tubular (12) of tube sealing (24), the left end of push rod (12) and measurement ring (11) butt, the right-hand member of push rod (12) is fixedlyed connected with piston (13).
4. test testing tool according to claim 1, it is characterized in that: between the left end of piston (13) and fluid cylinder overcoat (10), the inside surface of fluid cylinder overcoat (10) is provided with first raised ring (101), first raised ring (101) and baffle ring (5) between, the outer retaining ring (9) that is arranged with of piston rod (7), the internal diameter of retaining ring (9) equals the external diameter of piston rod (7), the external diameter of retaining ring (9) is less than the internal diameter of fluid cylinder overcoat (10), retaining ring (9) is the retaining ring, and retaining ring (9) is merely able to unidirectional slip from right to left.
5. test testing tool according to claim 1, it is characterized in that: separate the right-hand member of tube sealing (24) for dividing claw structure (241), be arranged with stay pipe (23) in the right-hand member of solution tube sealing (24), the outside surface of the right-hand member of stay pipe (23) is provided with second raised ring (231), the external diameter of second raised ring (231) equals the internal diameter of branch claw structure (241), the left end of stay pipe (23) is fixedlyed connected with seal head (20), the right-hand member of separating tube sealing (24) is arranged with the fixed cover (18) of tubular outward, the left end of fixed cover (18) is fixedlyed connected with abutment ring (16), be provided with the 3rd raised ring (181) in the fixed cover (18), the internal diameter of the 3rd raised ring (181) and the outside surface that divides claw structure (241) are by being threaded, and stay pipe (23) is connected by shear pin (21) with solution tube sealing (24).
6. test testing tool according to claim 5, it is characterized in that: the right-hand member of fixed cover (18) is provided with plug (25), and plug (25) is fixedlyed connected with fixed cover (18).
7. test testing tool according to claim 5, it is characterized in that: between the left end of minute claw structure (241) and fixed cover (18), separate the outer fixedly sleeved restraining position ring block (22) of tube sealing (24), the external diameter of spacing ring (22) is less than the internal diameter of fixed cover (18).
8. test testing tool according to claim 5, it is characterized in that: between the left end of minute claw structure (241) and stay pipe (23), the outside surface of stay pipe (23) is provided with the 4th raised ring (232), and the 4th raised ring (232) is connected by shear pin (21) with solution tube sealing (24).
9. test testing tool according to claim 1, it is characterized in that: baffle ring (5) is connected by shear pin (6) with pipe core (1).
10. test testing tool according to claim 1 is characterized in that: between baffle ring (5) and regulating ring (2), be arranged with a plurality of for the spacer rings (4) of isolating packing element (3) outside the pipe core (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310163818.0A CN103293062B (en) | 2013-05-07 | 2013-05-07 | Test detecting tool for compression-type packer rubber sleeves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310163818.0A CN103293062B (en) | 2013-05-07 | 2013-05-07 | Test detecting tool for compression-type packer rubber sleeves |
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| CN103293062A true CN103293062A (en) | 2013-09-11 |
| CN103293062B CN103293062B (en) | 2015-04-08 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103630349A (en) * | 2013-12-09 | 2014-03-12 | 武汉海王机电工程技术公司 | Testing device for compression packers |
| CN104458443A (en) * | 2013-09-25 | 2015-03-25 | 中国石油化工股份有限公司 | Interlaminar shear resistant strength testing method |
| CN104634514A (en) * | 2015-03-05 | 2015-05-20 | 中国海洋石油总公司 | Device for testing sealing performance of rubber cylinder assembly of packer |
| CN104749040A (en) * | 2015-03-03 | 2015-07-01 | 中国石油天然气股份有限公司 | Test detection device and method for high temperature packer rubber tube |
| CN105092108A (en) * | 2015-08-06 | 2015-11-25 | 东北石油大学 | Testing ring for measuring inner and outer radial contact stress of rubber sleeve |
| CN105092383A (en) * | 2014-05-23 | 2015-11-25 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Packer rubber setting visualization test apparatus |
| CN105372135A (en) * | 2015-12-07 | 2016-03-02 | 中国石油天然气股份有限公司 | Test detection tool for high temperature packer glue cylinder |
| CN104594848B (en) * | 2014-11-27 | 2017-06-13 | 中国石油天然气股份有限公司 | A kind of high temperature compressed formula packing element experiment setting tool |
| CN108287111A (en) * | 2017-01-09 | 2018-07-17 | 中国石油化工股份有限公司 | Device for the packing performance for detecting packing element |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104749040B (en) * | 2015-03-03 | 2018-04-06 | 中国石油天然气股份有限公司 | A kind of experiment detection device and method of high-temperature packer packing element |
| CN104634514A (en) * | 2015-03-05 | 2015-05-20 | 中国海洋石油总公司 | Device for testing sealing performance of rubber cylinder assembly of packer |
| CN105092108B (en) * | 2015-08-06 | 2017-08-25 | 东北石油大学 | The test wrapper of radial direction contact stress inside and outside a kind of measurable packing element |
| CN105092108A (en) * | 2015-08-06 | 2015-11-25 | 东北石油大学 | Testing ring for measuring inner and outer radial contact stress of rubber sleeve |
| CN105372135A (en) * | 2015-12-07 | 2016-03-02 | 中国石油天然气股份有限公司 | Test detection tool for high temperature packer glue cylinder |
| CN108287111A (en) * | 2017-01-09 | 2018-07-17 | 中国石油化工股份有限公司 | Device for the packing performance for detecting packing element |
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| CN103293062B (en) | 2015-04-08 |
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