CN201125694Y - Reinforcement tools for casing patch - Google Patents
Reinforcement tools for casing patch Download PDFInfo
- Publication number
- CN201125694Y CN201125694Y CNU2007203093770U CN200720309377U CN201125694Y CN 201125694 Y CN201125694 Y CN 201125694Y CN U2007203093770 U CNU2007203093770 U CN U2007203093770U CN 200720309377 U CN200720309377 U CN 200720309377U CN 201125694 Y CN201125694 Y CN 201125694Y
- Authority
- CN
- China
- Prior art keywords
- expansion tube
- head
- universal joint
- universal
- adapter sleeve
- 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 tool used under the well of oil field, which belongs to the reinforced tool used in the casing patch. The utility model solves the problem that the existing patch tool has a small inside diameter, and mainly comprises a pull rod joint 1, a hydraulic anchor 2, a pull rod 3, an expansion tube 4, a shear pin 5, a sealing head 6, an universal joint 7, an universal connecting sleeve 8,a pressed short section 9, an expander probe 10 and a seal ring 11; the upper part and the lower part of the pull rod 3 are respectively connected with the pull rod joint 1 and the universal joint 7 by even buckles, after the lower end of the water power anchor 2 is connected with the sealing head 6, the hydraulic anchor 2 and the sealing head 6 is laid on the upper end of the prefabricated expanding part of the expansion tube 4. The tool is suitable for the patch reinforcement after a set variation well is shaped, and has advantages of having a big path, being easy to operate, having an accurate location of the expansion tube, and being safe to construct, etc.
Description
Technical field:
The utility model relates to the oil field downhole tool, belongs to a kind of reinforcing instrument that is used for casing patching.
Background technology:
Casing damaged well just can ordinary production through carrying out sealing and reinforcing after the milling shaping, though existing subsidy instrument subsidy back can reach production requirement on intensity and sealing, but latus rectum is little in it, so the necessary situation that works out a kind of in guaranteed strength and sealing, the instrument that latus rectum is bigger.Though the interior latus rectum of existing subsidy instrument reaches Φ 106mm, interior latus rectum still can't satisfy the requirement that conventional separate zone production instrument passes through.
Summary of the invention:
The purpose of this utility model provides the bigger a kind of reinforcing instrument that is used for casing patching of interior latus rectum that can make after the subsidy.
The utility model mainly by rod head, hydraulic anchor, pull bar, expansion tube, cut off pin, seal head, universal joint, universal adapter sleeve, compress pipe nipple, expand head and sealing ring form; Wherein pull bar connects with flat linking with rod head and universal joint respectively up and down, the hydraulic anchor lower end be positioned over the prefabricated hole enlargement part of expansion tube upper end after seal head links to each other, the hydraulic anchor upper step contacts with the expansion tube upper end, seal with sealing ring between seal head and the expansion tube, cut off pin with expansion positioning in the cotter slot of seal head, universal joint is with after universal adapter sleeve is connected, it is positioned in the expansion tube, compressing pipe nipple is connected with the head that expands with universal adapter sleeve respectively up and down, compressing pipe nipple is sealed by sealing ring between the head in expanding, it is bigger to compress pipe nipple middle part external diameter, and bloated head is positioned over the prefabricated hole enlargement part of expansion tube lower end.
The sphere design is adopted in the junction that connects universal joint and universal adapter sleeve.The Internal Spherical Surface design is adopted in the corresponding junction with universal joint of universal adapter sleeve.The head that expands adopts the sphere design with the expansion tube junction.
Compared with the prior art the utility model has following advantage:
(1), owing to adopt the subsides mode that expands from the top down to reinforce, instrument lower end external diameter is little, by crushed element, is difficult for when transferring being hampered easily.
(2), owing to take whole subsidy tube swelling mode to subsidize, make the subsidy back latus rectum technology subsidy back latus rectum than before that expands big.
Description of drawings:
Fig. 1 is the utility model structure diagram;
The specific embodiment:
The utility model mainly by rod head 1, hydraulic anchor 2, pull bar 3, expansion tube 4, cut off pin 5, seal head 6, universal joint 7, universal adapter sleeve 8, compress pipe nipple 9, expand 10 and sealing ring 11 form; Wherein pull bar 3 connects with rod head 1 and flat the linking of universal joint 7 usefulness respectively up and down, hydraulic anchor 2 lower ends be positioned over expansion tube 4 prefabricated hole enlargements part upper ends after seal head 6 links to each other, hydraulic anchor 2 upper step contact with expansion tube 4 upper ends, can prevent the impact that tubing string is hampered, seal with sealing ring 11 between seal head 6 and the expansion tube 4, cutting off pin 5 is positioned at expansion tube 4 in the cotter slot of seal head 6, universal joint 7 is with after universal adapter sleeve 8 is connected, it is positioned in the expansion tube 4, compressing pipe nipple 9 is connected with bloated 10 with universal adapter sleeve 8 respectively up and down, compressing pipe nipple 9 is sealed by sealing ring 11 between bloated 10, it is bigger to compress pipe nipple 9 middle part external diameters, can 10 play centralizing function to expanding, expanding 10 is positioned over expansion tube 4 prefabricated hole enlargement part lower ends.
Connect universal joint 7 and adopt the sphere design with the junction of universal adapter sleeve 8.Universal adapter sleeve 8 adopts the Internal Spherical Surface design with universal joint 7 corresponding junctions.Bloated 10 and the design of expansion tube 4 junctions employing sphere.
During on-the-spot the use, at first assemble this instrument, connecing one of two and half external upset tubing by ground again is connected on the hydraulic anchor 2, the button elevator, on carry to well head, connecting two and half external upset tubings successively transfers to the target location, during work, adopt pump truck to suppress in tubing string at the ground well head, at this moment, pressure acts on bloated 10, promote its expanded whole expansion tube 4 downwards, 10 all pass through up to expanding, because 10 a descending drive universal joint 7 that expand from expansion tube 4, pull bar 3, rod head 1 is descending, when expanding 10 downwards by behind the expansion tube 4, when rod head 1 comes downwards to hydraulic anchor 2 internal diameters, because rod head 1 external diameter is greater than hydraulic anchor 2 internal diameters, making expands 10 is hampered and stops descendingly, and the action of at this moment expanding is finished.The upper lifting pipe post because of expansion tube 4 has been close on the sleeve pipe, has been cut off pin 5 then, finishes casing patching.
Claims (4)
1, a kind of reinforcing instrument that is used for casing patching is characterized in that: it mainly by rod head (1), hydraulic anchor (2), pull bar (3), expansion tube (4), cut off pin (5), seal head (6), universal joint (7), universal adapter sleeve (8), compress pipe nipple (9), expand head (10) and sealing ring (11) form; Wherein pull bar (3) connects with flat linking with rod head (1) and universal joint (7) respectively up and down, hydraulic anchor (2) lower end be positioned over the prefabricated hole enlargement part of expansion tube (4) upper end after seal head (6) links to each other, hydraulic anchor (2) upper step contacts with expansion tube (4) upper end, seal with sealing ring (11) between seal head (6) and the expansion tube (4), cutting off pin (5) is positioned at expansion tube (4) in the cotter slot of seal head (6), universal joint (7) is with after universal adapter sleeve (8) is connected, it is positioned in the expansion tube (4), compressing pipe nipple (9) is connected with the head (10) that expands with universal adapter sleeve (8) respectively up and down, compressing pipe nipple (9) is sealed by sealing ring (11) between the head (10) in expanding, it is bigger to compress pipe nipple (9) middle part external diameter, and the head (10) that expands is positioned over the prefabricated hole enlargement part of expansion tube (4) lower end.
2, a kind of reinforcing instrument that is used for casing patching according to claim 1, its feature also is: connect universal joint (7) and adopt the sphere design with the junction of universal adapter sleeve (8).
3, a kind of reinforcing instrument that is used for casing patching according to claim 1, its feature also is: the Internal Spherical Surface design is adopted in the corresponding junction with universal joint (7) of universal adapter sleeve (8).
4, a kind of reinforcing instrument that is used for casing patching according to claim 1, its feature also is: the head (10) that expands adopts the sphere design with expansion tube (4) junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203093770U CN201125694Y (en) | 2007-12-24 | 2007-12-24 | Reinforcement tools for casing patch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203093770U CN201125694Y (en) | 2007-12-24 | 2007-12-24 | Reinforcement tools for casing patch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201125694Y true CN201125694Y (en) | 2008-10-01 |
Family
ID=39999165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203093770U Expired - Fee Related CN201125694Y (en) | 2007-12-24 | 2007-12-24 | Reinforcement tools for casing patch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201125694Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677480A (en) * | 2020-06-04 | 2020-09-18 | 大庆油田有限责任公司 | Double-acting control valve for casing patching |
-
2007
- 2007-12-24 CN CNU2007203093770U patent/CN201125694Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677480A (en) * | 2020-06-04 | 2020-09-18 | 大庆油田有限责任公司 | Double-acting control valve for casing patching |
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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: 20081001 Termination date: 20141224 |
|
| EXPY | Termination of patent right or utility model |