CN204532193U - A kind of expandable casing patching device - Google Patents
A kind of expandable casing patching device Download PDFInfo
- Publication number
- CN204532193U CN204532193U CN201520046308.XU CN201520046308U CN204532193U CN 204532193 U CN204532193 U CN 204532193U CN 201520046308 U CN201520046308 U CN 201520046308U CN 204532193 U CN204532193 U CN 204532193U
- Authority
- CN
- China
- Prior art keywords
- expansion member
- expansion
- conical surface
- surface portion
- tube
- 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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- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model discloses a kind of expandable casing patching device, comprise expansion tube, the bottom of expansion tube is provided with plugging block, is provided with tube connector in expansion tube, and the lower end of tube connector is provided with expansion member; Described expansion member is taper, and expansion member comprises guide portion and conical surface portion; Described guide portion is positioned in expansion member on the position of miner diameter end, and described guide portion is provided with some guiding grooves, and described guiding groove is evenly arranged around the axis of expansion member, forms bootstrap block between two adjacent guiding grooves; Described conical surface portion is positioned on the position of close bigger diameter end in expansion member; The external surface of bootstrap block is concordant with conical surface portion; Position away from guide portion in conical surface portion is provided with drill bit, and the diameter of drill bit is less than the maximum gauge in conical surface portion, and described drill bit is provided with several cutting edges.
Description
Technical field
The utility model relates to a kind of expandable casing patching device, particularly a kind of expandable casing patching device.
Background technology
Expansion tube is a kind of metal steel pipe be made up of special material, had good plasticity, when expansion tube is for subsidizing sleeve pipe, first enter in casing damaged well by under the expansion tube of small diameter, under the effect of mechanical force or hydraulic coupling, make expansion tube that overall plastic expansion occur, be close on the internal surface of sleeve pipe of pit shaft, thus realize grappling and sealing.
Existing expandable casing patching device, generally include the expansion tube of band plug, expansion cone is placed in expansion tube, when need subsidize, patch device is removed to operating position together with expansion tube one, then expansion cone is extracted out, lower drill bit in well again, thus complete subsidy process; And when expansion cone is extracted out, produce larger resistance between expansion cone and expansion tube, cause inefficiency, maintenance time is long.
Summary of the invention
Problem to be solved in the utility model is to provide for the deficiencies in the prior art, there is provided a kind of expandable casing patching device, this device of resistance to expandable casing patching can carry out expansion tube compensation easily, once can complete the boring of expansion and plug, eliminate the step again descending drill bit, maintenance efficiency is high.
For solving the problem, the technical scheme that the utility model adopts is:
A kind of expandable casing patching device, comprise expansion tube, the bottom of expansion tube is provided with plugging block, is provided with tube connector in expansion tube, and the lower end of tube connector is provided with expansion member;
Described expansion member is taper, and expansion member comprises guide portion and conical surface portion;
Described guide portion is positioned in expansion member on the position of miner diameter end, and described guide portion is provided with some guiding grooves, and described guiding groove is evenly arranged around the axis of expansion member, forms bootstrap block between two adjacent guiding grooves;
Described conical surface portion is positioned on the position of close bigger diameter end in expansion member; The external surface of bootstrap block is concordant with conical surface portion;
Position away from guide portion in conical surface portion is provided with drill bit, and the diameter of drill bit is less than the maximum gauge in conical surface portion, and described drill bit is provided with several cutting edges.
Below the further improvement to technique scheme:
Described expansion member is provided with through hole, and tube connector is arranged in through hole.
During use, upwards promote tube connector, expansion member enters into expansion tube and moves up, and completes expansion work; After compensation completes, move down tube connector, tube connector rotates, bit operation, thus plugging block is bored process of thoroughly finishing the work; The utility model structure is simple, practical and convenient, and the subsidy time is than traditional shortening more than 60%.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of a kind of expandable casing patching device of the utility model;
Accompanying drawing 2 is the structural representation of expansion member;
Accompanying drawing 3 is the top view of accompanying drawing 2.
In figure:
1-sleeve pipe; 2-expansion tube; 3-tube connector; 4-expansion member; 41-guide portion; 42-conical surface portion; 43-drill bit; 44-bootstrap block; 45-path end face; 46-through hole; 47-guiding groove; 48-cutting edge; 5-plugging block.
Detailed description of the invention
Embodiment, as shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, a kind of expandable casing patching device, comprises expansion tube 2, and the bottom of expansion tube 2 is provided with plugging block 5, is provided with tube connector 3 in expansion tube 2, and the lower end of tube connector is provided with expansion member 4; Expansion member 4 is taper, and expansion member 4 comprises guide portion 41 and conical surface portion 42; Described guide portion 41 is positioned in expansion member 4 on the position of miner diameter end, and described guide portion 41 is provided with some guiding grooves 47, and described guiding groove 47 is evenly arranged around the axis of expansion member 4, forms bootstrap block 44 between two adjacent guiding grooves 47; Described conical surface portion 42 is positioned on the position of close bigger diameter end in expansion member 4; The external surface of bootstrap block 44 is concordant with conical surface portion 42.
The resistance reduced when expansion member is extracted out that arranges of guide portion improves operating efficiency.
Conical surface portion 42 is provided with drill bit 43 away from the position of guide portion 41, and the diameter of drill bit 43 is less than the maximum gauge in conical surface portion 42, and described drill bit 43 is provided with several cutting edges 48.
Arranging of drill bit facilitates disposable completing, and the boring of plugging block 5, improves operating efficiency.
Described expansion member 4 is provided with through hole 46, and tube connector 3 is arranged in through hole 46.
Guide portion 41 has concordant path end face 45.
During use, upwards promote tube connector 3, expansion member 4 enters into expansion tube and moves up, and completes expansion work; After compensation completes, move down tube connector 3, tube connector 3 rotates, and drill bit 43 works, thus plugging block is bored process of thoroughly finishing the work; The utility model structure is simple, practical and convenient, and the subsidy time is than traditional shortening more than 60%.
Claims (2)
1. an expandable casing patching device, comprise expansion tube (2), the bottom of expansion tube (2) is provided with plugging block (5), is provided with tube connector (3) in expansion tube (2), and the lower end of tube connector is provided with expansion member (4);
Described expansion member (4) is taper, and expansion member (4) comprises guide portion (41) and conical surface portion (42);
It is upper on the position of miner diameter end that described guide portion (41) is positioned at expansion member (4), described guide portion (41) is provided with some guiding grooves (47), described guiding groove (47) is evenly arranged around the axis of expansion member (4), forms bootstrap block (44) between two adjacent guiding grooves (47);
It is upper on the position of bigger diameter end that described conical surface portion (42) is positioned at expansion member (4); The external surface of bootstrap block (44) is concordant with conical surface portion (42);
Conical surface portion (42) is provided with drill bit (43) away from the position of guide portion (41), and the diameter of drill bit (43) is less than the maximum gauge of conical surface portion (42), and described drill bit (43) is provided with several cutting edges (48).
2. a kind of expandable casing patching device as claimed in claim 1, it is characterized in that: described expansion member (4) is provided with through hole (46), tube connector (3) is arranged in through hole (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046308.XU CN204532193U (en) | 2015-01-23 | 2015-01-23 | A kind of expandable casing patching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046308.XU CN204532193U (en) | 2015-01-23 | 2015-01-23 | A kind of expandable casing patching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204532193U true CN204532193U (en) | 2015-08-05 |
Family
ID=53746216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520046308.XU Expired - Fee Related CN204532193U (en) | 2015-01-23 | 2015-01-23 | A kind of expandable casing patching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204532193U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003208A (en) * | 2015-08-19 | 2015-10-28 | 华鼎鸿基石油工程技术(北京)有限公司 | Sleeve tie-back device |
-
2015
- 2015-01-23 CN CN201520046308.XU patent/CN204532193U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003208A (en) * | 2015-08-19 | 2015-10-28 | 华鼎鸿基石油工程技术(北京)有限公司 | Sleeve tie-back device |
| CN105003208B (en) * | 2015-08-19 | 2017-11-24 | 华鼎鸿基石油工程技术(北京)有限公司 | A kind of sleeve connector |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20200123 |