CN204126582U - Sleeve pipe can't harm reshaper - Google Patents
Sleeve pipe can't harm reshaper Download PDFInfo
- Publication number
- CN204126582U CN204126582U CN201420568638.0U CN201420568638U CN204126582U CN 204126582 U CN204126582 U CN 204126582U CN 201420568638 U CN201420568638 U CN 201420568638U CN 204126582 U CN204126582 U CN 204126582U
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- CN
- China
- Prior art keywords
- central axis
- sleeve
- sleeve pipe
- screwed connection
- conical surface
- 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
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Abstract
The utility model relates to a kind of sleeve pipe and can't harm reshaper.It is characterized in that: described joint (1) upper end and sleeve (3) lower end screwed connection, conical surface central axis (2) is placed in joint (1) and sleeve (3) is inner, nylon jacket (5) sleeve (3) is equipped with, roller (6) is housed between nylon jacket (5) and conical surface central axis (2), conical surface central axis (2) upper end screwed connection central axis (14), sleeve (3) upper end screwed connection cylinder bucket (11); Stop collar (10), piston (12) are housed between cylinder bucket (11) and central axis (14), Compress Spring (9) is housed between central axis (14) and stop collar (10), central axis (14) top screwed connection hex nut (15), cylinder bucket (11) upper end screwed connection union.This sleeve pipe can't harm reshaper, can repair the casing damaged well of small deformation amount; Well workover can not injure the outer cement sheath of sleeve pipe simultaneously, and cost is few, avoids repairing well because of the damaged hidden danger brought of the outer cement sheath of sleeve pipe.
Description
technical field
The utility model relates to a kind of reshaper in oil well technical field, and particularly a kind of sleeve pipe can't harm reshaper.
Background technology
At present, being adopt pyriform reshaper to damage point by tubing string deadweight extruded sleeve to realize shaping object for the existing well workover technology of casing deformation well primarily of three kinds: one, is that one rushes expanding Training system; 2 polishing casing deformation points, make the latus rectum in sleeve pipe become large, then by the mode rigidized cover inside pipe wall of casing patching, realize shaping object; Three is change impaired sleeve pipe, takes out corrupted sleeve pipe, changes new casing.There is a lot of technological deficiency in existing shaping technique: it is slow to rush swollen shaping progress, longitudinally rushes that swollen easily to make sleeve pipe produce bending, also easily destroys cement sheath; Milling shaping makes casing wall thinning, strength reduction, also there is the risk of worn out sleeve pipe simultaneously; Take cover difficulty of construction large, the cycle is long, costly, and is not suitable for oil layer section reparation.
Summary of the invention
Technical problem to be solved in the utility model overcomes Problems existing in background technology, and provide a kind of sleeve pipe to can't harm reshaper, and this sleeve pipe can't harm reshaper, can repair the casing damaged well of small deformation amount; Well workover can not injure the outer cement sheath of sleeve pipe simultaneously, and cost is few, avoids repairing well because of the damaged hidden danger brought of the outer cement sheath of sleeve pipe.
The invention for solving the technical problem reaches by following technical scheme: this sleeve pipe can't harm reshaper, comprise joint, conical surface central axis, sleeve, described upper end of joint and the screwed connection of sleeve lower end, conical surface central axis is placed in joint and sleeve inner, sleeve is equipped with nylon jacket, between nylon jacket and conical surface central axis, roller is housed, conical surface central axis upper end screwed connection central axis, sleeve upper end screwed connection cylinder bucket; Stop collar, piston are housed between cylinder bucket and central axis, between central axis and stop collar, Compress Spring are housed, central axis top screwed connection hex nut, cylinder bucket upper end screwed connection union.
The utility model can have following beneficial effect compared with above-mentioned background technology: this sleeve pipe can't harm reshaper owing to adopting said structure, can process casing deformation amount less treat well workover, alleviate overhaul pressure; Routine work team can complete well workover task, while reducing task difficulty, save workover cost; Repeatedly can roll cover during shaping tool operation and damage point, reduce working procedure, improve well workover efficiency.
accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present utility model.
In figure: 1-joint, 2-conical surface central axis, 3-sleeve, 4-sealing ring, 5-nylon jacket, 6-roller, 7-polytetrafluoro pad, 8-spring pad, 9-Compress Spring, 10-stop collar, 11-cylinder bucket, 12-piston, 13-union, 14-central axis, 15-hex nut, 16-sealing ring.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, this sleeve pipe can't harm reshaper, comprise joint 1, conical surface central axis 2, sleeve 3, described joint 1 upper end and sleeve 3 lower end screwed connection, conical surface central axis 2 is placed in joint 1 and sleeve 3 is inner, sealing ring 4 is housed between conical surface central axis 2 lower end and joint 1, nylon jacket 5 sleeve 3 is equipped with, roller 6 is housed between nylon jacket 5 and conical surface central axis 2, conical surface central axis 2 upper end screwed connection central axis 14, polytetrafluoro pad 7 is housed between conical surface central axis 2 and central axis 14, sleeve 3 upper end screwed connection cylinder bucket 11, sleeve 3 and cylinder bucket 11 connecting portion end face are equipped with spring pad 8, stop collar 10, piston 12 are housed between cylinder bucket 11 and central axis 14, Compress Spring 9 is housed between central axis 14 and stop collar 10, central axis 14 top screwed connection hex nut 15, cylinder bucket 11 upper end screwed connection union 13.Sealing ring is equipped with between piston 12 and central axis 14, between piston 12 and cylinder bucket 11.
When this sleeve pipe can't harm reshaper down to cover damage position, sleeve 3 is hampered upward sliding, roller 6 is regained under the effect of conical surface central axis 2, shaping tool becomes minimum outer diameter, when damaging position by cover, promote lower sleeve 3 in the effect of Compress Spring 9 to reduce, roller 6 supports out, upper lifting pipe post.When instrument is carried be hampered time, suppressed by ground, sleeve 3 upward sliding again, reclaim roller, avoid reshaper to be stuck in sleeve pipe.
Claims (4)
1. a sleeve pipe can't harm reshaper, comprise joint (1), conical surface central axis (2), sleeve (3), it is characterized in that: described joint (1) upper end and sleeve (3) lower end screwed connection, conical surface central axis (2) is placed in joint (1) and sleeve (3) is inner, nylon jacket (5) sleeve (3) is equipped with, roller (6) is housed between nylon jacket (5) and conical surface central axis (2), conical surface central axis (2) upper end screwed connection central axis (14), sleeve (3) upper end screwed connection cylinder bucket (11); Stop collar (10), piston (12) are housed between cylinder bucket (11) and central axis (14), Compress Spring (9) is housed between central axis (14) and stop collar (10), central axis (14) top screwed connection hex nut (15), cylinder bucket (11) upper end screwed connection union (13).
2. sleeve pipe according to claim 1 can't harm reshaper, it is characterized in that: between described conical surface central axis (2) lower end and joint (1), sealing ring (4) is housed; Polytetrafluoro pad (7) is housed between conical surface central axis (2) and central axis (14).
3. sleeve pipe according to claim 1 can't harm reshaper, it is characterized in that: described sleeve (3) and cylinder bucket (11) connecting portion end face are equipped with spring pad (8).
4. sleeve pipe according to claim 1 can't harm reshaper, it is characterized in that: between described piston (12) and central axis (14), be equipped with sealing ring between piston (12) and cylinder bucket (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568638.0U CN204126582U (en) | 2014-09-29 | 2014-09-29 | Sleeve pipe can't harm reshaper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568638.0U CN204126582U (en) | 2014-09-29 | 2014-09-29 | Sleeve pipe can't harm reshaper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204126582U true CN204126582U (en) | 2015-01-28 |
Family
ID=52382949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420568638.0U Expired - Fee Related CN204126582U (en) | 2014-09-29 | 2014-09-29 | Sleeve pipe can't harm reshaper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204126582U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437591A (en) * | 2016-11-25 | 2017-02-22 | 中国石油大学(华东) | Hydraulic ball-type casing reshaping device |
| CN106761515A (en) * | 2017-02-19 | 2017-05-31 | 胜利油田胜兴集团有限责任公司 | A kind of superficial part set leakage external reinforcement repaiies set technique |
-
2014
- 2014-09-29 CN CN201420568638.0U patent/CN204126582U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437591A (en) * | 2016-11-25 | 2017-02-22 | 中国石油大学(华东) | Hydraulic ball-type casing reshaping device |
| CN106437591B (en) * | 2016-11-25 | 2018-09-04 | 中国石油大学(华东) | A kind of hydraulic pressure ball type truing device for sleeve pipes |
| CN106761515A (en) * | 2017-02-19 | 2017-05-31 | 胜利油田胜兴集团有限责任公司 | A kind of superficial part set leakage external reinforcement repaiies set technique |
| CN106761515B (en) * | 2017-02-19 | 2021-06-29 | 胜利油田胜兴集团有限责任公司 | Shallow sleeve leakage reinforcing and repairing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150128 Termination date: 20200929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |