CN2517859Y - Salvageable screen pipe hookup - Google Patents
Salvageable screen pipe hookup Download PDFInfo
- Publication number
- CN2517859Y CN2517859Y CN 01271793 CN01271793U CN2517859Y CN 2517859 Y CN2517859 Y CN 2517859Y CN 01271793 CN01271793 CN 01271793 CN 01271793 U CN01271793 U CN 01271793U CN 2517859 Y CN2517859 Y CN 2517859Y
- Authority
- CN
- China
- Prior art keywords
- pressure ring
- lock
- cone
- cylindrical surface
- external cylindrical
- 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 - Lifetime
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- Earth Drilling (AREA)
Abstract
The utility model discloses a salvageable screen pipe hanger which is provided with a transferring and sealing device and an anchoring device, and the utility model solves the technical problem of clamping a well. A left end locking block 13 arranged in an inner chamber of a right cone central pipe 10, and a shear pin 14 are locked and connected with a releasing sub 1. A right end inverse buckled oil pipe forms screw connection with a safety joint 22, and the outer part of the oil pipe is orderly attached to a slip 20 and a slip cover 19. A left cone 12 locks and presses a lock block 11 which is locked and connected with a right compression ring 9, and a lock spring 16 is arranged in a ring groove between the lock block 11 and the right compression ring 9. A shear pin 17 is fixedly connected with a press lock block 13 in a lock sleeve 18, and externally supports an open lock at the right end of the right compression ring 9, and the open lock is locked and connected with the left cone 12. A shear pin 3 is fixedly connected with a jam release joint 2, and locks and presses a lock block 5 which is locked and connected with a left compression ring 6 and is embedded in a slide block 4. Slide blocks 7 are embedded into an inner longitudinal groove at the left end of a left compression ring 6 and an outer groove of the right cone central tube 10, and a sealing and isolating cylinder 8 is arranged in the ring groove arranged between the left compression ring 6 and the right compression ring 9. The utility model is suitable for a suspension screen pipe of an oil steam well.
Description
Technical field the utility model belongs to oily vapour field downhole tool, particularly a kind of salvagable screen pipe hanger of sand control treatment.
Background technology is present, and used screen pipe hanger overcomes soft or hard resistance ability in the process of going into the well both at home and abroad, and application life is short, deblocking difficulty when producing the sand card, operating cost height.
The summary of the invention the purpose of this utility model is to overcome above technical deficiency, and a kind of resistance that resists is provided, not the salvagable screen pipe hanger of Ka Jing.
Task of the present utility model is, the salvagable screen pipe hanger is lost hand joint right-hand member left-hand thread tubing round thread attachment security joint continuously by right cone central tube inner chamber left end lock, the outside articulates slips cover, slips, left cone, right pressure ring, left pressure ring, unfreezing joint successively, shear pin is connected, and lock tube is locked the pressure lock dog and right pressure ring right-end openings is locked, annular groove dress packing tube between left side pressure ring and right pressure ring, vertical guide groove embeds guide runner in outer guide groove of unfreezing joint and the left cone, and interior vertically guide groove of left pressure ring and the outer guide groove of right cone central tube are embedded in the guide runner formation.
Its operating principle: when seat did not seal state, the lock dog lock was lost hand protection shear pin continuously, overcomes improper putting aside; Slips cover, left cone, right pressure ring, left pressure ring articulate successively, and the lock dog lock connects right pressure ring, overcome the seat envelope misoperation that is hampered; During the seat envelope, snap action back lock dog release is carried out the seat envelope and is separated with giving up; Seat is honored as a queen, and snap keeps duty; During unfreezing, on propose the release of unfreezing joint lock dog, articulate left pressure ring, right pressure ring, left cone, slips cover, the unfreezing of right cone central tube successively; During sand card screen casing, change the unfreezing joint clockwise, drive left pressure ring successively through guide runner, right cone central tube rotate with safety joint move back deduction of points from.
The utlity model has following characteristics: one, anti-resistance ability is strong, does not have mechanical sliding phenomenon, no improper putting aside when being hampered in the way of going into the well; Its two, on carry and putting aside, can adjust a seal pressure as required; Its three, during screen casing sand card, clockwise the tube post can move back deduction of points from, Ka Jing not with safety joint.
Description of drawings specifies with embodiment below in conjunction with accompanying drawing.
Fig. 1 shows salvagable screen pipe hanger structure chart.
Among the figure: the 1-back-off sub; 2-unfreezing joint; The 3-shear pin; The 4-guide runner; The 5-lock dog; 6-left side pressure ring; The 7-guide runner; The 8-packer accessory; The right pressure ring of 9-; The right cone central tube of 10-; The 11-lock dog; 12-left side cone; The 13-lock dog; The 14-shear pin; The 15-steel ball; The 16-snap; The 17-shear pin; The 18-lock tube; 19-slips cover; The 20-slips; The 21-spring; The 22-safety joint
The specific embodiment is with reference to accompanying drawing 1, the salvagable screen pipe hanger, by right cone central tube 10 inner chamber left end lock dogs 13 and shear pin 14 interlocking back-off subs 1, back-off sub 1 right-hand member inner chamber is steel ball 15 sealing cones, right cone 10 right-hand member left-hand thread tubing round thread attachment security joints 22, left side cone 12 inner cylinder faces and right cone central tube 10 external cylindrical surface ring cavities are embedded in lock tube 18, by the right cone central tube of shear pin 17 lockings 10 external cylindrical surfaces, lock tube 18 inner cylinder faces lock is pressed lock dog 13, left end external cylindrical surface and right pressure ring 9 articulate, right pressure ring 9 right-hand member inner cylinder faces have annular groove, be embedded in snap 16, move with left cone 12 screw threads by snap 16 and to be connected, right pressure ring 9 is by the right cone central tube 10 of lock dog 11 lockings, left side cone 12 left end inner cylinder faces lock is pressed lock dog 11, external cylindrical surface and right pressure ring 9 articulate, right pressure ring 9 left end inner cylinder faces and left pressure ring 6 external cylindrical surfaces articulate, left side pressure ring 6 external cylindrical surfaces are installed packer accessory 8, packer accessory 8 right-hand members are by the left end shoulder location of right pressure ring 9, left side pressure ring 6 left end inner cylinder faces have vertical guide groove and unfreezing joint 2 external cylindrical surface guide grooves are embedded in guide runner 4, left side pressure ring 6 is by the right cone central tube of lock dog 5 lockings 10 left ends, unfreezing joint 2 right-hand members lock is pressed lock dog 5, connect left pressure ring 6 by shear pin 3, left pressure ring 6 inner cylinder faces have vertical guide groove and right cone central tube 10 external cylindrical surface guide grooves are embedded in guide runner 7.
The salvagable screen pipe hanger course of work, safety joint 22 connects screen casing, back-off sub 1 connect tubing string go into the well arrive desired location after, drop into steel ball 15, connecting line, inject highly pressurised liquid, liquid stream promotion lock tube 18 is cut off shear pin 17 and is moved to right, lock dog 13 and the release of right pressure ring right-end openings lock, liquid stream continues to push away lock tube 18 and moves to right and push away left cone 12 and move to right, push away slips 20 and radially shift out and be anchored on the well inwall, lock dog 11 releases, liquid stream pushes away the right pressure ring 9 extruding packer accessory 8 that moves to left and its diameter is increased be close to well inwall upper sealing ring cover space, snap 16 right pressure ring 9 of locking and left cones 12, lay down flow stream pressure, propose tubing string pulling back-off sub 1 and move to left and cut off shear pin 14, back-off sub 1 and steel ball 15 propose outside the wells.When the cycle of finishing the work is pulled salvagable screen pipe hanger and screen casing out in well, being lowered to tubing string in well docks with unfreezing joint 2, upper lifting pipe post pulling unfreezing joint 2 is cut off shear pin 3, lock dog 5 releases, continue the upper lifting pipe post, unfreezing joint 2 is hung left pressure ring 6 and is moved to left, packing tube 8 is removed the squeezed state deblocking, articulate right pressure ring 9, left cone 12, slips cover 19 successively, right cone central tube 10, slips 20 is radially withdrawn and is removed grappling, on carry tubing string, salvagable screen pipe hanger and screen casing are proposed outside the well.When being buried by long-pending sand, screen casing carries when being obstructed, clockwise tube post, unfreezing joint 2 drives left cone 6 through guide runner 4, through guide runner 7 drive right cone central tube 10 and safety joint 22 move back deduction of points from, continue to carry tubing string the salvagable screen pipe hanger proposed outside the well.
The salvagable screen pipe hanger is applicable to that oily vapour well hangs screen casing.
Claims (1)
1, a kind of salvagable screen pipe hanger, have the seal apparatus of sending and anchoring device, it is characterized in that, right cone central tube (10) inner chamber left end lock dog (13) and shear pin (14) interlocking back-off sub (1), back-off sub (1) right-hand member inner chamber is steel ball (a 15) sealing cone, right cone (10) right-hand member left-hand thread tubing round thread attachment security joint (22), left side cone (12) inner cylinder face and right cone central tube (10) external cylindrical surface ring cavity are embedded in lock tube (18), by right cone central tube (10) external cylindrical surface of shear pin (17) locking, lock tube (18) inner cylinder face lock is pressed lock dog (13), left end external cylindrical surface and right pressure ring (9) articulate, right pressure ring (9) right-hand member inner cylinder face has annular groove, be embedded in snap (16), move with left cone (12) screw thread by snap (16) and to be connected, right pressure ring (9) is by the right cone central tube (10) of lock dog (11) locking, left side cone (12) left end inner cylinder face lock is pressed lock dog (11), external cylindrical surface and right pressure ring (9) articulate, right pressure ring (9) left end inner cylinder face and left pressure ring (6) external cylindrical surface articulate, left side pressure ring (6) external cylindrical surface is installed packer accessory (8), packer accessory (8) right-hand member is by the left end shoulder location of right pressure ring (9), left side pressure ring (6) left end inner cylinder face has vertical guide groove and unfreezing joint (2) external cylindrical surface guide groove is embedded in guide runner (4), left side pressure ring (6) is by right cone central tube (10) left end of lock dog (5) locking, unfreezing joint (2) right-hand member lock is pressed lock dog (5), connect left pressure ring (6) by shear pin (3), left pressure ring (6) inner cylinder face has vertical guide groove and right cone central tube (10) external cylindrical surface guide groove is embedded in guide runner (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01271793 CN2517859Y (en) | 2001-11-27 | 2001-11-27 | Salvageable screen pipe hookup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01271793 CN2517859Y (en) | 2001-11-27 | 2001-11-27 | Salvageable screen pipe hookup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2517859Y true CN2517859Y (en) | 2002-10-23 |
Family
ID=33677144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01271793 Expired - Lifetime CN2517859Y (en) | 2001-11-27 | 2001-11-27 | Salvageable screen pipe hookup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2517859Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392633B (en) * | 2007-09-21 | 2012-07-18 | 中国石油天然气集团公司 | Mechanical and hydraulic double-acting expansion sieve tube hanger |
| CN107288586A (en) * | 2017-07-26 | 2017-10-24 | 左青山 | A kind of telescopic type sand control screen and method |
| 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 |
| CN110017110A (en) * | 2018-01-08 | 2019-07-16 | 中国石油化工股份有限公司 | A kind of embedded slips extension hanger |
| CN110424911A (en) * | 2019-08-12 | 2019-11-08 | 李剑 | Portable one-way conduction repeats the screen pipe completion system and application method of efficient well-flushing |
-
2001
- 2001-11-27 CN CN 01271793 patent/CN2517859Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392633B (en) * | 2007-09-21 | 2012-07-18 | 中国石油天然气集团公司 | Mechanical and hydraulic double-acting expansion sieve tube hanger |
| 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 |
| 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 |
| 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 |
| CN110017110A (en) * | 2018-01-08 | 2019-07-16 | 中国石油化工股份有限公司 | A kind of embedded slips extension hanger |
| CN110017110B (en) * | 2018-01-08 | 2021-03-23 | 中国石油化工股份有限公司 | Embedded slip liner hanger |
| CN110424911A (en) * | 2019-08-12 | 2019-11-08 | 李剑 | Portable one-way conduction repeats the screen pipe completion system and application method of efficient well-flushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111127 Granted publication date: 20021023 |