CN104989306A - Releasable screen tube hanger - Google Patents
Releasable screen tube hanger Download PDFInfo
- Publication number
- CN104989306A CN104989306A CN201510476682.8A CN201510476682A CN104989306A CN 104989306 A CN104989306 A CN 104989306A CN 201510476682 A CN201510476682 A CN 201510476682A CN 104989306 A CN104989306 A CN 104989306A
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- giving
- wall
- piston cylinder
- boss
- deblocking
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- Mutual Connection Of Rods And Tubes (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention relates to the technical field of well completion of a screen tube at a horizontal segment of a horizontal well, especially to a releasable screen tube hanger An upper end of a piston cylinder is connected to an outer wall of an upper connector by a setting shear pin; a boss is arranged on the outer wall of the upper connector and sealing with an inner wall of the piston cylinder is realized by a sealing ring I; and a boss is arranged on the inner wall of the piston cylinder and sealing with the outer wall of the upper connector is realized by a sealing ring II. A connecting hole communicated with the space between the boss of the upper connector and the boss of the piston cylinder is formed in the side wall of the upper connector; and a pressure relief hole is formed in the side wall of the lower end of the boss of the piston cylinder. According to the invention, two releasing ways of hydraulic way and mechanical inverted buckling way are used; with the unique releasing mechanism, the seat hanging and setting become safe and reliable; the needed lifting releasing force is small; releasing can be realized safely and successfully; and an operational requirement of salvage of the hanger and tailpipe column during the subsequent well repairing work can be met. Defects that the lifting releasing load is heavy and the releasing is difficult to be done of the existing screen tube hanger can be overcome.
Description
Technical field:
The present invention relates to horizontal well horizontal segment screen pipe completion technique field, particularly one can deblocking screen pipe hanger.
Background technology:
Screen pipe hanger is used for the important tool of straight well, inclined shaft, extended reach well, horizontal well completion suspension tail pipe, screen casing, hangs in well-completing process be widely used at horizontal well sieve tube.The solution sealing mechanism of screen pipe hanger is the vitals of screen pipe hanger, the deblocking principle of conventional screen hanger be by under enter mate with hanger drag for lance, drag for hanger inwall, upper lifting pipe post, cut off the deblocking shear pin on hanger, hanger deblocking, propose screen pipe hanger.When this conventional screen hanger sets, set pressure compression packing element and directly act on slips and deblocking shear pin, very easily cause the direct deblocking of hanger when setting pressure reduction and being larger, cause hanger to sit extension, set inefficacy.In order to avoid this accident occurs, during design tool, usually adopt the shearing diameter and this mode of quantity raising deblocking load that increase deblocking shear pin to reduce this type of risk.But the raising of deblocking load also means carries deblocking load greatly, and deblocking difficulty, for follow-up workover treatment brings great risk simultaneously.
Summary of the invention:
The technical problem to be solved in the present invention is to provide one can deblocking screen pipe hanger, the arrangement achieves and adopt hydraulic pressure and mechanical back-off two kinds of modes of giving up, unique solution sealing mechanism makes seat hang, it is safe and reliable to set, on to put forward deblocking power little, deblocking safety smoothly, to the job requirements of salvaging hanger and tail pipe column when meeting later stage workover treatment.Overcome on existing screen pipe hanger and carry deblocking load greatly, the deficiency of deblocking difficulty.
The technical solution used in the present invention is: one can deblocking screen pipe hanger, comprises top connection, piston cylinder, central tube and lower contact, piston cylinder upper end is connected on top connection outer wall by setting shear pin, top connection outer wall is provided with boss and by sealing ring I and piston cylinder inner wall sealing, piston cylinder inwall is provided with boss and is sealed by sealing ring II and top connection outer wall, top connection sidewall has the intercommunicating pore be connected with space between top connection boss and piston cylinder boss, the sidewall of piston cylinder boss lower end has relief hole, top connection lower end outer wall is threaded pawl spring of giving up, top connection lower surface heads on support set of giving up, pawl spring of giving up to be connected on support set of giving up by shear pin of giving up and to be sealed by sealing ring III, pawl spring inwall of giving up is provided with the limited step matched with support set outer step of giving up, support set lower end inner wall of the giving up connection end, is blocked up and is sealed by sealing ring IV, support ring of giving up is locked in by locking nut gives up on support set, support ring of giving up struts pawl spring lower end of giving up, pawl spring lower end outside of giving up is connected with central tube left-hand thread, piston cylinder lower end props up retaining lock sleeve and mobile pressure ring, retaining locking is placed on mobile pressure ring upper end and is sleeved on outside central tube, mobile pressure ring lower end is provided with packing element, packing element, copper bowl, baffle ring, copper bowl, packing element, cone, bi-directional slip, slip spider is sleeved on central tube in turn, bi-directional slip arranges on slip spider, lock ring set upper side is connected with slip spider by pin for suppressing metal, lock ring cover lower end is connected on central tube by deblocking shear pin, central tube sidewall is provided with lock dog and locks lock ring cover by lock dog, central tube lower end connects variable buckle joint, variable buckle joint lower end connects lower contact, in variable buckle joint, step is provided with pressure ring, pressure ring upper end is provided with deblocking sliding sleeve, deblocking sliding sleeve lower end inner surface is provided with pawl gingival cyst of mucous gland in the newborn button, deblocking sliding sleeve external surface is provided with the groove matched with lock dog, the outer wall that deblocking sliding sleeve groove is upper and lower is all provided with seal.
45 degree of chamferings are provided with outside lock dog upper end.
The invention has the beneficial effects as follows: the present invention adopts hydraulic pressure and mechanical back-off two kinds of modes of giving up, unique solution sealing mechanism makes seat hang, it is safe and reliable to set, on to put forward deblocking power little, deblocking safety smoothly, to the job requirements of salvaging hanger and tail pipe column when meeting later stage workover treatment.
Accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of deblocking sliding sleeve.
Detailed description of the invention:
As shown in Figure 1 and Figure 2, one can deblocking screen pipe hanger, comprises top connection 1, piston cylinder 3, central tube 16 and lower contact 31, piston cylinder 3 upper end is connected on top connection 1 outer wall by setting shear pin 2, top connection 1 outer wall is provided with boss and by sealing ring I 4 and piston cylinder 3 inner wall sealing, piston cylinder 3 inwall is provided with boss and is sealed by sealing ring II 5 and top connection 1 outer wall, top connection 1 sidewall has the intercommunicating pore be connected with space between top connection 1 boss and piston cylinder 3 boss, the sidewall of piston cylinder 3 boss lower end has relief hole, top connection 1 lower end outer wall is threaded pawl spring 9 of giving up, top connection 1 lower surface heads on support set 8 of giving up, pawl spring 9 of giving up to be connected on support set 8 of giving up by shear pin 6 of giving up and to be sealed by sealing ring III 7, pawl spring 9 inwall of giving up is provided with the limited step matched with support set 8 outer step of giving up, support set 8 lower end inner wall of giving up is connected the end stifled 10 and is sealed by sealing ring IV 12, support ring 11 of giving up is locked in by locking nut 13 gives up on support set 8, support ring 11 of giving up struts pawl spring 9 lower end of giving up, pawl spring 9 lower end outside of giving up is connected with central tube 16 left-hand thread, piston cylinder 3 lower end props up retaining lock sleeve 14 and mobile pressure ring 15, retaining lock sleeve 14 is placed in mobile pressure ring 15 upper end and is sleeved on outside central tube 16, retaining lock sleeve 14 inner surface is provided with pawl gingival cyst of mucous gland in the newborn button, central tube 16 external surface is provided with the pawl gingival cyst of mucous gland in the newborn button matched with retaining lock sleeve 14, mobile pressure ring 15 lower end is provided with packing element 17, packing element 17, copper bowl 18, baffle ring 19, copper bowl 18, packing element 17, cone 20, bi-directional slip 21, slip spider 22 is sleeved on central tube 16 in turn, bi-directional slip 21 arranges on slip spider 22, cone 20 is provided with dovetail groove, bi-directional slip 21 closely offsets with the dovetail groove of cone 20, lock ring is overlapped 24 upper ends and is connected with slip spider 22 by pin for suppressing metal 23, lock ring overlaps 24 lower ends and is connected on central tube 16 by deblocking shear pin 27, central tube 16 sidewall is provided with lock dog 26 and locks lock ring cover 24 by lock dog 26, 45 degree of chamferings are provided with outside lock dog 26 upper end, central tube 16 lower end connects variable buckle joint 30, variable buckle joint 30 lower end connects lower contact 31, in variable buckle joint 30, step is provided with pressure ring 29, pressure ring 29 upper end is provided with deblocking sliding sleeve 28, deblocking sliding sleeve 28 lower end inner surface is provided with pawl gingival cyst of mucous gland in the newborn button, deblocking sliding sleeve 28 external surface is provided with the groove matched with lock dog 26, the outer wall that deblocking sliding sleeve 28 groove is upper and lower is all provided with seal 25.
Sit and hang, set: by under the present invention and tail pipe column after design attitude, in instrument, water filling is suppressed, pressure reaches 8MPa, set shear pin 2 to be cut off, piston cylinder 3 heads on retaining lock sleeve 14 successively, mobile pressure ring 15, packing element 17, cone 20 is descending along central tube 16, bi-directional slip 21 moves along the dovetail groove of cone 20, along with bi-directional slip 21 is expanded to maximum outside diameter, be stuck on internal surface of sleeve pipe, piston cylinder 3 starts to compress packing element 17, the stressed rear even inflation of upper and lower two packing elements, seal up the annular space between hanger and sleeve pipe, screen pipe hanger is sat and is hung, set process complete.
Give up: continue to suppress, shear pin 6 of giving up is cut off, and the outer step of support set 8 of giving up comes downwards to the limited step position of pawl spring 9 of giving up, support ring 11 of now giving up departs from the inner chamber of pawl spring 9 of giving up completely, pawl spring 9 of giving up shrinks, and departs from completely, realize hydraulic releasing with central tube 16.When hydraulic releasing failure, rotate forward and send into tubing string, pawl spring 9 of giving up rotates forward, and departs from completely with central tube 16, realizes mechanical back-off and gives up.
Deblocking: when later stage operation needs to salvage of the present invention, under enter Special fishing tool and deblocking sliding sleeve 28 and lock and carry, deblocking sliding sleeve 28 is up, lock dog 26 falls in the groove of deblocking sliding sleeve 28, and continuation is carried, and deblocking shear pin 27 is cut off, lock ring cover 24 loses support, packing element 17 and the stressed releasing of bi-directional slip 21, screen pipe hanger deblocking, continuation is carried the fishing that can carry out tail pipe column.
When the present invention sets, lock dog 26 and deblocking shear pin 27 bear shearing force simultaneously, ensure that screen pipe hanger seat is hung, it is safe and reliable to set.During deblocking of the present invention, lock dog 26 falls in deblocking sliding sleeve 28 groove, and only have deblocking shear pin 27 to bear shearing force, deblocking load is little, meets the job requirements that the later stage salvages hanger and tail pipe column.
Be understandable that, above about specific descriptions of the present invention, the technical scheme described by the embodiment of the present invention is only not limited to for illustration of the present invention, those of ordinary skill in the art is to be understood that, still can modify to the present invention or equivalent replacement, to reach identical technique effect; Needs are used, all within protection scope of the present invention as long as meet.
Claims (2)
1. can a deblocking screen pipe hanger, comprise top connection (1), piston cylinder (3), central tube (16) and lower contact (31), it is characterized in that: piston cylinder (3) upper end is connected on top connection (1) outer wall by setting shear pin (2), top connection (1) outer wall is provided with boss and by sealing ring I (4) and piston cylinder (3) inner wall sealing, piston cylinder (3) inwall is provided with boss and is sealed by sealing ring II (5) and top connection (1) outer wall, top connection (1) sidewall has the intercommunicating pore be connected with space between top connection (1) boss and piston cylinder (3) boss, the sidewall of piston cylinder (3) boss lower end has relief hole, top connection (1) lower end outer wall is threaded pawl spring (9) of giving up, top connection (1) lower surface heads on support set of giving up (8), pawl spring (9) of giving up is connected to support set of giving up (8) by shear pin of giving up (6) and goes up and pass through sealing ring III (7) sealing, pawl spring (9) inwall of giving up is provided with the limited step matched with support set of giving up (8) outer step, support set (8) lower end inner wall of giving up is connected the end stifled (10) and is sealed by sealing ring IV (12), support ring (11) of giving up is locked on support set of giving up (8) by locking nut (13), support ring (11) of giving up struts pawl spring of giving up (9) lower end, pawl spring (9) lower end outside of giving up is connected with central tube (16) left-hand thread, piston cylinder (3) lower end props up retaining lock sleeve (14) and mobile pressure ring (15), retaining lock sleeve (14) is placed in mobile pressure ring (15) upper end and is sleeved on central tube (16) outside, mobile pressure ring (15) lower end is provided with packing element (17), packing element (17), copper bowl (18), baffle ring (19), copper bowl (18), packing element (17), cone (20), bi-directional slip (21), slip spider (22) is sleeved on central tube (16) in turn, bi-directional slip (21) arranges on slip spider (22), lock ring cover (24) upper end is connected with slip spider (22) by pin for suppressing metal (23), lock ring cover (24) lower end is connected on central tube (16) by deblocking shear pin (27), central tube (16) sidewall be provided with lock dog (26) and lock lock ring cover (24) by lock dog (26), central tube (16) lower end connects variable buckle joint (30), variable buckle joint (30) lower end connects lower contact (31), variable buckle joint (30) interior step is provided with pressure ring (29), pressure ring (29) upper end is provided with deblocking sliding sleeve (28), deblocking sliding sleeve (28) lower end inner surface is provided with pawl gingival cyst of mucous gland in the newborn button, deblocking sliding sleeve (28) external surface is provided with the groove matched with lock dog (26), the outer wall that deblocking sliding sleeve (28) groove is upper and lower is all provided with seal (25).
2. according to according to claim 1 can deblocking screen pipe hanger, it is characterized in that: outside described lock dog (26) upper end, be provided with 45 degree of chamferings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476682.8A CN104989306B (en) | 2015-08-06 | 2015-08-06 | One kind can unseal screen pipe hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476682.8A CN104989306B (en) | 2015-08-06 | 2015-08-06 | One kind can unseal screen pipe hanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104989306A true CN104989306A (en) | 2015-10-21 |
| CN104989306B CN104989306B (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510476682.8A Active CN104989306B (en) | 2015-08-06 | 2015-08-06 | One kind can unseal screen pipe hanger |
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| CN (1) | CN104989306B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625954A (en) * | 2016-01-12 | 2016-06-01 | 中国石油大学(华东) | Safety device for intelligent well completion |
| CN105937382A (en) * | 2016-06-17 | 2016-09-14 | 中国石油天然气股份有限公司 | Hydraulic bi-directional slips type hanger |
| CN107288586A (en) * | 2017-07-26 | 2017-10-24 | 左青山 | A kind of telescopic type sand control screen and method |
| CN107387006A (en) * | 2017-07-03 | 2017-11-24 | 中国石油集团渤海钻探工程有限公司 | Running tool and the large diameter hanger for being provided with the running tool |
| CN107882514A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | Releasing type compensator |
| CN108060901A (en) * | 2017-11-22 | 2018-05-22 | 中国石油集团长城钻探工程有限公司 | A kind of releasing gadget for being used to wait hole diameters expansion sleeve bare hole padding instrument |
| CN109403896A (en) * | 2017-08-17 | 2019-03-01 | 中国石油化工股份有限公司 | Recyclable bidirectionally anchoring screen pipe hanger and recyclable bidirectionally anchoring screen system |
| CN111636862A (en) * | 2020-07-10 | 2020-09-08 | 北京同永亨科技有限公司 | Five-claw positioning hanger for well logging |
| CN112855026A (en) * | 2019-11-28 | 2021-05-28 | 中国石油天然气股份有限公司 | Screen pipe running tool |
| CN112943153A (en) * | 2019-12-11 | 2021-06-11 | 中国石油天然气股份有限公司 | Two-stage hydraulic cylinder type suspension device capable of being unsealed |
| CN107882514B (en) * | 2016-09-29 | 2024-05-24 | 中国石油化工股份有限公司 | Release type compensator |
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| US20030183396A1 (en) * | 2002-03-26 | 2003-10-02 | Adams Richard W. | Downhole gripping tool and method |
| CN201024941Y (en) * | 2007-04-04 | 2008-02-20 | 大港油田集团有限责任公司 | Sifting tube suspender |
| CN201420519Y (en) * | 2009-06-08 | 2010-03-10 | 阜新市石油工具厂 | Large drift diameter sieve tube hanger |
| CN202391368U (en) * | 2011-12-05 | 2012-08-22 | 潍坊市宇宏石油机械有限公司 | Screen pipe hanger for petroleum drilling |
| CN202882818U (en) * | 2012-10-25 | 2013-04-17 | 中国石油化工股份有限公司 | Self-seal-examining screen pipe hanger |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030183396A1 (en) * | 2002-03-26 | 2003-10-02 | Adams Richard W. | Downhole gripping tool and method |
| CN201024941Y (en) * | 2007-04-04 | 2008-02-20 | 大港油田集团有限责任公司 | Sifting tube suspender |
| CN201420519Y (en) * | 2009-06-08 | 2010-03-10 | 阜新市石油工具厂 | Large drift diameter sieve tube hanger |
| CN202391368U (en) * | 2011-12-05 | 2012-08-22 | 潍坊市宇宏石油机械有限公司 | Screen pipe hanger for petroleum drilling |
| CN202882818U (en) * | 2012-10-25 | 2013-04-17 | 中国石油化工股份有限公司 | Self-seal-examining screen pipe hanger |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625954A (en) * | 2016-01-12 | 2016-06-01 | 中国石油大学(华东) | Safety device for intelligent well completion |
| CN105937382A (en) * | 2016-06-17 | 2016-09-14 | 中国石油天然气股份有限公司 | Hydraulic bi-directional slips type hanger |
| CN105937382B (en) * | 2016-06-17 | 2018-11-16 | 中国石油天然气股份有限公司 | Hydraulic bidirectional slip-type hanger |
| CN107882514A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | Releasing type compensator |
| CN107882514B (en) * | 2016-09-29 | 2024-05-24 | 中国石油化工股份有限公司 | Release type compensator |
| CN107387006A (en) * | 2017-07-03 | 2017-11-24 | 中国石油集团渤海钻探工程有限公司 | Running tool and the large diameter hanger for being provided with the running tool |
| CN107288586A (en) * | 2017-07-26 | 2017-10-24 | 左青山 | A kind of telescopic type sand control screen and method |
| CN107288586B (en) * | 2017-07-26 | 2023-07-07 | 胜利油田康贝石油工程装备有限公司 | Retractable sand control screen pipe and method |
| CN109403896B (en) * | 2017-08-17 | 2021-03-23 | 中国石油化工股份有限公司 | Recoverable two-way anchoring screen pipe hanger and recoverable two-way anchoring screen pipe system |
| CN109403896A (en) * | 2017-08-17 | 2019-03-01 | 中国石油化工股份有限公司 | Recyclable bidirectionally anchoring screen pipe hanger and recyclable bidirectionally anchoring screen system |
| CN108060901B (en) * | 2017-11-22 | 2019-12-13 | 中国石油集团长城钻探工程有限公司 | Release mechanism for open hole patching tool of equal-well-diameter expansion casing |
| CN108060901A (en) * | 2017-11-22 | 2018-05-22 | 中国石油集团长城钻探工程有限公司 | A kind of releasing gadget for being used to wait hole diameters expansion sleeve bare hole padding instrument |
| CN112855026A (en) * | 2019-11-28 | 2021-05-28 | 中国石油天然气股份有限公司 | Screen pipe running tool |
| CN112943153A (en) * | 2019-12-11 | 2021-06-11 | 中国石油天然气股份有限公司 | Two-stage hydraulic cylinder type suspension device capable of being unsealed |
| CN112943153B (en) * | 2019-12-11 | 2022-10-04 | 中国石油天然气股份有限公司 | But deblocking doublestage hydraulic cylinder formula linkage |
| CN111636862A (en) * | 2020-07-10 | 2020-09-08 | 北京同永亨科技有限公司 | Five-claw positioning hanger for well logging |
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| CN104989306B (en) | 2017-07-21 |
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Effective date of registration: 20200928 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. Address before: 124010 Xinglongtai, Liaoning Province, oil street, No. 96, No. Patentee before: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. |