CN102493774B - Hanger packer is general rotatablely sets releasing tool - Google Patents
Hanger packer is general rotatablely sets releasing tool Download PDFInfo
- Publication number
- CN102493774B CN102493774B CN201110425748.2A CN201110425748A CN102493774B CN 102493774 B CN102493774 B CN 102493774B CN 201110425748 A CN201110425748 A CN 201110425748A CN 102493774 B CN102493774 B CN 102493774B
- Authority
- CN
- China
- Prior art keywords
- ring
- hanger
- packer
- central tube
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention discloses that a kind of hanger packer is general rotatablely sets releasing tool, it is connected sealing shroud assembly with hanger packer forms by setting assembly of giving up, described in set assembly of giving up by hanging rotational release assembly and the envelope seal assembly that rises forms.This tool construction is simple and reliable, do not need to be threaded connection hanger or packer, can carry higher to draw, compressive load, comparatively high pulling torque can be used to drive tail pipe to rotate, there are machinery and hydraulic pressure two kinds of modes of giving up, any one can be adapted to by the hanger of hydraulic setting or packer, recyclable recycling.
Description
Technical field
The present invention relates to a kind of oil gas field completion and oil recovery gas production field, especially relate to that a kind of hanger packer is general rotatablely sets releasing tool.
Background technology
At present, in oil gas field Completion Operations especially in horizontal well, extended reach well Completion Operations, tail pipe is entered under often utilizing hanger to rotate, or need in process of production with top packer, a part of flow string to be suspended in sleeve pipe, under the tubing string that enters to hang or after packer setting completing to sit hanger, need to put aside from hanger or packer, running string proposes well head.But for various dissimilar hanger or packer, general way adopts different releasing gadgets, and releasing gadget is often designed to one with hanger or packer, once releasing gadget is generally passed into disuse after fulfiling assignment.And need that carrying is highlyer drawn, compressive load and can with drive tail pipe to rotate compared with high pulling torque and the hanger with multiple mode of giving up not only expensive, mechanism is complicated, process assembly and adjustment complex process, and poor universality, easily lost efficacy during lower well operations, thus limited promoting the use of of this hanger of giving up.
Summary of the invention
For the process characteristic of oil gas field completion Back-off Pipe String, the setting of recyclable recycling that the invention provides a kind of hanger packer general is given up.
For this reason, technical scheme of the present invention is as follows:
A kind of hanger packer is general rotatablely sets releasing tool, and it is connected sealing shroud assembly with hanger packer is formed by hanging setting assembly of giving up, and described hanging setting assembly of giving up seals seal assembly form by hanging rotational release assembly and rising.
Described suspension rotational release assembly comprises the 1st top connection (1), central tube (2), urceolus (3) and the 1st lower contact (17), described 1st top connection (1) is threaded with central tube, central tube (2) is threaded with the 1st lower contact (17), urceolus (3) is enclosed within central tube (2) outward, it is corresponding with the stepped step of urceolus (3) that 1st top connection (1) outside is provided with stepped step (18), urceolus (3) is fixedly connected with by shear pin (4) with the 1st top connection (1), urceolus (3) is formed the 1st hole (5), spring (6) is provided with in space between urceolus (3) and central tube (2), spring (6) lower end is provided with baffle ring (7), one moment of torsion lock dog (9) hold-down screw (8) is fixed on baffle ring (7), baffle ring (7) is embedded in groove (19) and can slides up and down, piston (11) is fixed on central tube (2) by shear pin (10), piston (11) screw thread is connected with piston bush (48), 1st lock ring (47) is enclosed within piston bush (48) lower inside, when piston bush (48) moves up, driven on support set (53) by the 1st lock ring (47) and move, support set (53) shear pin (46) is fixed on central tube (2), the 2nd lock ring (51) is had between support set (53) and central tube (2), gingival cyst of mucous gland in the newborn tooth (45) is formed at the correspondence position of central tube (2), 2nd lock ring (51) is connected by gingival cyst of mucous gland in the newborn tooth (45) with central tube (2), make the 2nd lock ring (51) can only on move and can not move down, lock dog (15) is fixed by connecting rod (13) and connecting rod cover (57), slip ring (54) is threaded with support set (53), guide rod (56) is welded on connecting rod cover (57), spring (55) is enclosed within guide rod (56) and be pressed in slip ring (54) outward, for stretching out of lock dog (15) provides resiliency supported.
Slipper seal structure and hydraulic sealing structure is formed between described piston bush (48) and central tube (2), described slipper seal structure comprises the 1st rigid support ring (32), the 1st flexible support ring (33), the 1st sealing ring (34), the 2nd flexible support ring (35) and the 2nd rigid support ring (36) that set gradually, urceolus (3) is formed the 3rd hole (37), when suppressing from the 3rd hole (37), described slipper seal structure promotes described piston (11) and moves up; Described hydraulic sealing structure comprises the 1st lock ring (38), the 3rd rigid support ring (39), the 3rd flexible support ring (40), the 2nd sealing ring (41), the 4th flexible support ring (42), the 4th rigid support ring (43) and the 2nd lock ring (44) that set gradually.
Seal head (21) on the described envelope seal assembly that rises, 2nd top connection (23) and the 2nd lower contact (31), described upper seal head (21) is threaded with suspension rotational release assembly the 1st lower contact (17), upper seal head (21) is provided with sealing ring (22), the diameter of sealing ring (22) should mate with latus rectum in hanger or packer, 2nd top connection (23) is threaded with upper seal head (21), 1st, 2 leather cups (25, 28) the 2nd top connection (23) is arranged on outward, and the rim of a bowl upward, 1st leather cup (25), the external diameter of the 2nd leather cup (28) mates with latus rectum in hanger or packer, 2nd top connection (23) is formed with the 2nd hole (24), the sealing of hole that rises of hanger or packer is aimed in 2nd hole (24), seat extension is carried out or the envelope that rises to hanger or packer, ball seat (30) is threaded connection and rises in the 2nd lower contact (31) of envelope seal assembly described.
Described hanger packer connects sealing shroud assembly and comprises upper seal bore (58) and lower seal cylinder (60), the lower end of lower seal cylinder (60) forms the 3rd lower contact (63), 3rd lower contact (63) is connected with hanger or packer with thread connecting mode, lower seal cylinder (60) inner side is provided with draw-in groove (62), the width of draw-in groove (62) is identical with the width of lock dog (15), the supporting surface (61) of draw-in groove coincide with seating surface (14) angle of lock dog (15), the interior latus rectum of lower seal cylinder (60) is identical with the maximum outside diameter of the 1st lower contact (17), lower seal cylinder (60) is provided with torsional channel (64), its width is identical with the width of moment of torsion lock dog (9).
Packer releasing tool of the present invention does not need to be threaded connection hanger or packer, can carry higher to draw, compressive load, comparatively high pulling torque can be used to drive tail pipe to rotate, there are machinery and hydraulic pressure two kinds of modes of giving up, any one can be suitable for by the hanger of hydraulic setting or packer, and recyclable recycling.It is simple and reliable for structure, frame for movement is independent, independent assembling, only need according to various casing size design inventive article series, do not need according to hanger or packer construction size design instrument series, do not affect hanger or packer original structure, on-the-spot and hanger or the direct socket connection of packer, reliably easy.
Accompanying drawing explanation
Fig. 1 is the rotatable structural representation setting assembly of giving up of the present invention;
Fig. 2 a is the amplification assumption diagram hanging rotational release assembly in Fig. 1;
Fig. 2 b rises in Fig. 1 to seal the amplification assumption diagram of seal assembly;
Fig. 3 is the enlarged drawing in I portion in Fig. 2 a;
Fig. 4 is the enlarged drawing in II portion in Fig. 2 a;
Fig. 5 is the rotatable structural representation setting hanger packer connection sealing shroud assembly in releasing tool of the present invention.
In figure: 1. the 1st top connection, 2. central tube, 3. urceolus, 4. shear pin, 5. the 1st hole, 6. spring, 7. baffle ring, 8. hold-down screw, 9. moment of torsion lock dog, 10. shear pin, 11. pistons, 13. connecting rods, 14. seating surfaces, 15. lock dogs, 16. guiding inclines, 17. the 1st lower contacts, 18. steps, 19. grooves, 20. conical surfaces, seal head on 21., 22. sealing rings, 23. the 2nd top connections, 24. the 2nd holes, 25. the 1st leather cups, 26. hypanthiums, 27. spacer rings, 28. the 2nd leather cups, 29. hypanthiums, 30. ball seats, 31. the 2nd lower contacts, 32. rigid support ring, 33. flexible support rings, 34. sealing rings, 35. flexible support rings, 36. rigid support ring, 37. the 3rd holes, 38. lock rings, 39. rigid support ring, 40. flexible support rings, 41. sealing rings, 42. flexible support rings, 43. rigid support ring, 44. lock rings, 45. gingival cyst of mucous gland in the newborn teeth, 46. shear pins, 47. the 1st lock rings, 48. piston bushs, 51. the 2nd lock rings, 53. support sets, 54. slip rings, 55. springs, 56. guide rods, 57. connecting rod covers, 58. upper seal bores, 59. upper surfaces, 60. lower seal cylinders, the supporting surface of 61. draw-in grooves, 62. draw-in grooves, 63. the 3rd lower contacts, 64. torsional channels.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
The general rotatable releasing tool that sets of hanger packer of the present invention to be connected sealing shroud assembly (hereinafter referred to as connection sealing shroud assembly) composition primarily of hanging setting assembly of giving up with hanger packer.
As shown in Figure 1 to 4, hanging setting gives up assembly primarily of suspension rotational release assembly and the envelope seal assembly composition that rises.
See Fig. 2 a, the 1st top connection 1 of hanging rotational release assembly is threaded with central tube 2, and central tube 2 is threaded with the 1st lower contact 17.Urceolus 3 is enclosed within outside central tube 2, and be provided with stepped step 18 outside the 1st top connection 1 corresponding with the stepped step of urceolus 3, urceolus 3 is fixedly connected with by shear pin 4 with the 1st top connection 1.Urceolus 3 is formed the 1st hole 5, in the space between urceolus 3 and central tube 2, is provided with spring 6, spring 6 lower end is provided with baffle ring 7.Moment of torsion lock dog 9 hold-down screw 8 is fixed on baffle ring 7, and baffle ring 7 is embedded in groove 19 and can slides up and down.Piston 11 is fixed on central tube 2 by shear pin 10.
See Fig. 4, piston 11 screw thread is connected with piston bush 48, and the 1st lock ring 47 is enclosed within piston bush 48 lower inside, and piston bush 48 moves up, and can be driven on support set 53 and move, but support set 53 can not be driven to move down by the 1st lock ring 47.Support set 53 shear pin 46 is fixed on central tube 2.The 251st is had between support set 53 and central tube 2, gingival cyst of mucous gland in the newborn tooth 45 is formed at the correspondence position of central tube 2,2nd lock ring 51 is connected by gingival cyst of mucous gland in the newborn tooth 45 with central tube 2, namely the 2nd lock ring 51 can only on move and can not move down, thus ensure support set 53 can only on move and can not move down.Lock dog 15 overlap 57 by connecting rod 13 and connecting rod to be fixed, and slip ring 54 is threaded with support set 53, and guide rod 56 is welded on connecting rod and overlaps on 57, and spring 55 to be enclosed within outside guide rod 56 and to be pressed in slip ring 54, for stretching out of lock dog 15 provides resiliency supported.
In Fig. 2 a, the enlarged drawing of I part is shown in Fig. 3.By the combination of the 1st rigid support ring 32, the 1st flexible support ring 33, the 1st sealing ring 34, the 2nd flexible support ring 35, the 2nd rigid support ring 36, slipper seal structure can be formed between piston bush 48 and central tube 2, suppress from the 3rd hole 37 and can promote piston 11 and move up.The combination of the 1st lock ring 38, the 3rd rigid support ring 39, the 3rd flexible support ring 40, the 2nd sealing ring 41, the 4th flexible support ring 42, the 4th rigid support ring 43, the 2nd lock ring 44, can form hydraulic packing between piston bush 48 and central tube 2, the 1st lock ring 38 prevents piston bush 48 from moving down.
See Fig. 2 b, the upper seal head 21 of the envelope that rises seal assembly is threaded with the lower contact 17 of suspension rotational release assembly the 1st, and upper seal head 21 is provided with sealing ring 22, and the diameter of sealing ring 22 should mate with latus rectum in hanger or packer.2nd top connection 23 is threaded with upper seal head 21,1st, 2 leather cups 25,28 are arranged on outside the 2nd top connection 23, and the rim of a bowl upward, the external diameter of the 1st leather cup 25, the 2nd leather cup 28 also mates with latus rectum in hanger or packer, utilize sealing ring 22 and the 1st leather cup 25, the 2nd leather cup 28 to rise between sealing of hole at hanger or packer and form sealing, the sealing of hole that rises of hanger or packer is aimed in 2nd hole 24, can carry out seat extension or the envelope that rises to hanger or packer.Ball seat 30 is threaded connection in the 2nd lower contact 31 of rising by envelope seal assembly.
See Fig. 5, hanger packer connects sealing shroud assembly and comprises upper seal bore 58 and lower seal cylinder 60.The lower end of lower seal cylinder 60 forms the 3rd lower contact the 63,3rd lower contact 63 and is connected with hanger or packer with thread connecting mode.Be provided with draw-in groove 62 inside lower seal cylinder 60, the width of draw-in groove 62 is identical with the width of lock dog 15, and the supporting surface 61 of draw-in groove coincide with seating surface 14 angle of lock dog 15, and the interior latus rectum of lower seal cylinder 60 is identical with the maximum outside diameter of the 1st lower contact 17.Lower seal cylinder 60 is provided with torsional channel 64, and its width is identical with the width of moment of torsion lock dog 9.
The present invention is when inserting lower seal cylinder 60, by the restriction of upper surface 59 internal diameter, form the clamping force to lock dog 15, the elastic force that lock dog 15 overcomes spring 55 is retracted, continue to insert, when lock dog 15 arrives draw-in groove 62, lock dog 15 loses outer chucking power, stretches out under the active force of spring 55 and the acting in conjunction of guiding incline 16.Now the conical surface 20 of the present invention is just to withstanding on end face 59, moment of torsion lock dog 9 just can carry out insertion snap fit with upper surface 59 and torsional channel 64, if moment of torsion lock dog 9 and torsional channel 64 misalignment, rotate to an angle a little, moment of torsion lock dog 9 inserts in torsional channel 64 under the effect of spring 6.At this moment, the present invention cannot extract out in lower seal cylinder 60, thus achieves docking of the present invention and hanger.
Now lock dog 15 is stuck in the draw-in groove 62 of lower seal cylinder, thus hangs on releasing tool of the present invention by hanger and tail pipe total weight, can bear and put forward load.When pressing down this instrument, set down weight by the stop of end face 59, thus has been delivered on hanger and tail pipe by the conical surface 20.When dextrorotation is of the present invention, step 18 transfers torque on urceolus 3, and groove 19 transfers torque on moment of torsion lock dog 9, and moment of torsion lock dog 9 drives torsional channel 64 to rotate, thus achieving the rotation of hanger and tail pipe, its maximum rotation torque can reach the maximum permission torsion strength of releasing tool urceolus.
Set and adopt different pressure differential with hydraulic releasing, directly to suppress in inventive article can realize setting.
Continue to improve pressure and carry out hydraulic releasing, hydraulic releasing can adopt tail pipe tubing string to build the pressure or stuff, and its general principle is identical.For stuff, utilize ball seat 30 to build the pressure, hydraulic pressure is applied on piston 11 through the 3rd hole 37, piston 11 moves up and cuts off shear pin 10 and shear pin 46, and drive on piston bush 48 and move, and then drive and lock dog 15 moves and retracts, carry inventive article now and can realize giving up.2nd lock ring 51 coordinates with gingival cyst of mucous gland in the newborn tooth 45, can only on move and can not move down, ensure lock dog 15 cannot again stretch out, guarantee to give up.
Machinery employing of giving up transfers weight of the present invention on lower seal cylinder 60, lock dog 15 is made no longer to hold tensional load, by left-handed 1/4 circle of the 1st top connection 1, cut off shear pin 4, the outside step 18 of the 1st top connection 1 falls from the step of urceolus, thus makes the 1st top connection 1 drive central tube 2 and the 1st lower contact 17 to fall, lock dog guiding incline 16 loses support, on carry instrument of the present invention lock dog 15 can be made to shrink, depart from the constraint of the 1st lower contact 17, realize giving up.
Claims (1)
1. a hanger packer is general rotatablely sets releasing tool, be connected sealing shroud assembly with hanger packer formed by hanging setting assembly of giving up, described hanging setting give up assembly by hang rotational release assembly and rise envelope seal assembly form, described suspension rotational release assembly comprises the 1st top connection (1), central tube (2), urceolus (3) and the 1st lower contact (17), described 1st top connection (1) is threaded with central tube, central tube (2) is threaded with the 1st lower contact (17), urceolus (3) is enclosed within central tube (2) outward, it is corresponding with the stepped step of urceolus (3) that 1st top connection (1) outside is provided with stepped step (18), urceolus (3) is fixedly connected with by shear pin (4) with the 1st top connection (1), urceolus (3) is formed the 1st hole (5), spring (6) is provided with in space between urceolus (3) and central tube (2), spring (6) lower end is provided with baffle ring (7), one moment of torsion lock dog (9) hold-down screw (8) is fixed on baffle ring (7), baffle ring (7) is embedded in groove (19) and can slides up and down, piston (11) is fixed on central tube (2) by shear pin (10), piston (11) screw thread is connected with piston bush (48), it is characterized in that: have the 1st lock ring (47) at the lower inside cover of described piston bush (48), when piston bush (48) moves up, driven on support set (53) by described 1st lock ring (47) and move, support set (53) shear pin (46) is fixed on central tube (2), the 2nd lock ring (51) is had between piston bush (48) and central tube (2), gingival cyst of mucous gland in the newborn tooth (45) is formed at the correspondence position of central tube (2), 2nd lock ring (51) is connected by gingival cyst of mucous gland in the newborn tooth (45) with central tube (2), make the 2nd lock ring (51) can only on move and can not move down, lock dog (15) is fixed by connecting rod (13) and connecting rod cover (57), slip ring (54) is threaded with support set (53), guide rod (56) is welded on connecting rod cover (57), spring (55) is enclosed within guide rod (56) and be pressed in slip ring (54) outward, for stretching out of lock dog (15) provides resiliency supported,
Slipper seal structure and hydraulic sealing structure is formed between described piston bush (48) and central tube (2), described slipper seal structure comprises the 1st rigid support ring (32), the 1st flexible support ring (33), the 1st sealing ring (34), the 2nd flexible support ring (35) and the 2nd rigid support ring (36) that set gradually, urceolus (3) is formed the 3rd hole (37), when suppressing from the 3rd hole (37), described slipper seal structure promotes described piston (11) and moves up; Described hydraulic sealing structure comprises the 1st lock ring (38), the 3rd rigid support ring (39), the 3rd flexible support ring (40), the 2nd sealing ring (41), the 4th flexible support ring (42), the 4th rigid support ring (43) and the 2nd lock ring (44) that set gradually;
The described envelope seal assembly that rises comprises seal head (21), 2nd top connection (23) and the 2nd lower contact (31), described upper seal head (21) is threaded with suspension rotational release assembly lower contact (17), upper seal head (21) is provided with sealing ring (22), the diameter of sealing ring (22) should mate with latus rectum in hanger or packer, 2nd top connection (23) is threaded with upper seal head (21), 1st, 2 leather cups (25, 28) the 2nd top connection (23) is arranged on outward, and the rim of a bowl upward, 1st leather cup (25), the external diameter of the 2nd leather cup (28) all mates with latus rectum in hanger or packer, 2nd top connection 23 is formed with the 2nd hole (24), the sealing of hole that rises of hanger or packer is aimed in 2nd hole (24), seat extension is carried out or the envelope that rises to hanger or packer, ball seat (30) is threaded connection and rises in the lower contact (31) of envelope seal assembly described,
Described hanger packer connects sealing shroud assembly and comprises upper seal bore (58) and lower seal cylinder (60), the lower end of lower seal cylinder (60) forms the 3rd lower contact (63), 3rd lower contact (63) is connected with hanger or packer with thread connecting mode, lower seal cylinder (60) inner side is provided with draw-in groove (62), the width of draw-in groove (62) is identical with the width of lock dog (15), the supporting surface (61) of draw-in groove coincide with seating surface (14) angle of lock dog (15), the interior latus rectum of lower seal cylinder (60) is identical with the maximum outside diameter of the 1st lower contact (17), lower seal cylinder (60) is provided with torsional channel (64), its width is identical with the width of moment of torsion lock dog (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110425748.2A CN102493774B (en) | 2011-12-19 | 2011-12-19 | Hanger packer is general rotatablely sets releasing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110425748.2A CN102493774B (en) | 2011-12-19 | 2011-12-19 | Hanger packer is general rotatablely sets releasing tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102493774A CN102493774A (en) | 2012-06-13 |
| CN102493774B true CN102493774B (en) | 2015-08-19 |
Family
ID=46185627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110425748.2A Expired - Fee Related CN102493774B (en) | 2011-12-19 | 2011-12-19 | Hanger packer is general rotatablely sets releasing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102493774B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603615B (en) * | 2013-11-07 | 2016-06-08 | 安东石油技术（集团）有限公司 | A kind of releasing tool |
| CN105525884B (en) * | 2014-09-28 | 2017-12-19 | 中国石油化工集团公司 | A kind of tubing string running tool with double relieving mechanisms |
| CN105756595B (en) * | 2014-12-17 | 2019-07-05 | 中国石油天然气股份有限公司 | Releasing tool |
| CN107288563B (en) * | 2016-03-31 | 2023-04-25 | 中国石油天然气股份有限公司 | Releasing tool |
| CN107299827B (en) * | 2016-04-15 | 2023-07-04 | 贵州航天凯山石油仪器有限公司 | Underground releasing method and device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4662453A (en) * | 1986-01-29 | 1987-05-05 | Halliburton Company | Liner screen tieback packer apparatus and method |
| US4911237A (en) * | 1989-03-16 | 1990-03-27 | Baker Hughes Incorporated | Running tool for liner hanger |
| US6318472B1 (en) * | 1999-05-28 | 2001-11-20 | Halliburton Energy Services, Inc. | Hydraulic set liner hanger setting mechanism and method |
| CN1657188A (en) * | 2005-02-23 | 2005-08-24 | 东营凯维石油科技有限责任公司 | Leak-proof well-washing device |
| CN2736529Y (en) * | 2004-10-01 | 2005-10-26 | 中国石化胜利油田有限公司采油工艺研究院 | Sand proof packing tool |
| CN201439099U (en) * | 2009-07-20 | 2010-04-21 | 中冶赛迪工程技术股份有限公司 | Tape leading device with steel slitter edge |
-
2011
- 2011-12-19 CN CN201110425748.2A patent/CN102493774B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4662453A (en) * | 1986-01-29 | 1987-05-05 | Halliburton Company | Liner screen tieback packer apparatus and method |
| US4911237A (en) * | 1989-03-16 | 1990-03-27 | Baker Hughes Incorporated | Running tool for liner hanger |
| US6318472B1 (en) * | 1999-05-28 | 2001-11-20 | Halliburton Energy Services, Inc. | Hydraulic set liner hanger setting mechanism and method |
| CN2736529Y (en) * | 2004-10-01 | 2005-10-26 | 中国石化胜利油田有限公司采油工艺研究院 | Sand proof packing tool |
| CN1657188A (en) * | 2005-02-23 | 2005-08-24 | 东营凯维石油科技有限责任公司 | Leak-proof well-washing device |
| CN201439099U (en) * | 2009-07-20 | 2010-04-21 | 中冶赛迪工程技术股份有限公司 | Tape leading device with steel slitter edge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102493774A (en) | 2012-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102493774B (en) | Hanger packer is general rotatablely sets releasing tool | |
| CN101265789B (en) | Compound pressurized cyclone tail tube hanging packer | |
| CN101382052B (en) | Back-off packer | |
| CN105507836A (en) | Drilling liner hanger and string type well cementing system comprising same | |
| CN101358512B (en) | Rotary tail pipe hanger capable of respectively drilling and completing | |
| CN105781461A (en) | Hydraulic expandable liner hanger provided with double-safety releasing gadget | |
| CN202866705U (en) | Rotary setting release tool capable of being used by both hanger and packer | |
| CN102797429A (en) | Suspending releasing sand preventing completion packer | |
| CN201851058U (en) | Combined slip socket | |
| CN104790893A (en) | Feeding tool assembly for suspending packer used for horizontal well multi-sectional fracture | |
| CN202970603U (en) | Drilling liner hanger sealing box | |
| CN201650203U (en) | Double rubber-barrel isolation packer | |
| CN201068746Y (en) | Wellhead oil conduit stationary slip device | |
| CN201013269Y (en) | Lever-type hydraulic chuck | |
| CN203008833U (en) | Expansion type suspension device of screen pipe well completion | |
| CN202300303U (en) | Full-balanced compression-type step-by-step release packer | |
| CN204082086U (en) | A kind of recoverable hanging packer | |
| CN112228001B (en) | Packer with low setting force and low unsetting force | |
| CN201276995Y (en) | Tail pipe hanger with control lock | |
| CN202731772U (en) | Clamping claw and support ring control suspended type blowout prevention connecting-tripping device | |
| CN204225837U (en) | Built-in hydraulic cylinder-type swell packers | |
| CN201074589Y (en) | Multipurpose standing valve for oil-well pump | |
| CN204152458U (en) | Hydraulic control automatic power slips | |
| CN202706985U (en) | Hydraulic machinery integrated bridge plug | |
| CN203756092U (en) | Pressurized expansion mechanism for expansion hanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20171219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |