CN202510077U - Guiding sliding block trip spear - Google Patents
Guiding sliding block trip spear Download PDFInfo
- Publication number
- CN202510077U CN202510077U CN2012201460672U CN201220146067U CN202510077U CN 202510077 U CN202510077 U CN 202510077U CN 2012201460672 U CN2012201460672 U CN 2012201460672U CN 201220146067 U CN201220146067 U CN 201220146067U CN 202510077 U CN202510077 U CN 202510077U
- Authority
- CN
- China
- Prior art keywords
- spear
- casing
- sliding block
- lance
- designed
- 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)
Abstract
The utility model relates to an operation tool for petroleum well repairing casing picking and casing changing, in particular to a guiding sliding block trip spear. A guiding cone is arranged between an upper joint of the trip spear and a spear rod, and the upper joint, the guiding cone, the spear rod and a lower joint are made of round steel and are formed by means of integrated processing. A central through hole is arranged in the center of the guiding sliding block trip spear, a female buckle is arranged on the upper joint, a male buckle is arranged at the lower end of the lower joint, and a break-out block is installed on the spear rod. The guiding sliding block trip spear achieves the purpose that the loss of a tracer pipe column and a casing fish top is avoided and successfully finishes the operation of the casing picking and the casing changing, and overcomes the shortcomings in an existing sliding block trip spear that the tracer pipe column and the casing fish top are easy to lost in the using process.
Description
Technical field:
The utility model relates to a kind of petroleum well workover to be got and changes the fishing tool used of cover operation, and particularly a kind of introduction slide block drags for lance.
Background technology:
At present, in the petroleum well workover operation, commonly used getting bought or get by illegal means the cover method and is: in draw spike tubing string method and once overlap milling.In draw spike tubing string method: get in well, be lowered to suitable dimension before the cover drilling tool as the spike tubing string, mill at cover, in the operating process such as salvaging, back-off, the spike tubing string is applied in well head and the production string all the time, is used for preventing that top of fish from losing in bore hole.Conventional slide block drags for the bottom that lance can only be connected drilling tool, can not be connected with the spike tubing string.When using conventional slide block to drag for lance, spike tubing string and sleeve pipe top of fish are prone to lose.
The utility model content:
The technical problem that the utility model will solve provides a kind of introduction slide block and drags for lance, and this drags for lance and has realized preventing that spike tubing string and sleeve pipe top of fish are lost in use, accomplishes to get smoothly and buys or get by illegal means the cover operation.Overcome existing slide block and dragged for lance spike tubing string and the sleeve pipe top of fish deficiency that is prone to lose in use.
The technical scheme that the utility model is taked is: a kind of introduction slide block drags for lance, comprises top connection, leading cone, lance bar, slip segment and lower contact; Be designed with leading cone between top connection and the lance bar, top connection, leading cone, lance bar and lower contact adopt the round steel one to process, and the heart is designed with central through hole therein, is designed with box in the top connection, and the lower contact lower end is designed with pin thread, on the lance bar slip segment is installed.
The beneficial effect of the utility model is: the utility model is owing to be designed with pin thread in the lower contact lower end, thereby can be connected with the spike tubing string in use, prevents that spike tubing string and sleeve pipe top of fish from losing, and completion is got and bought or get by illegal means the cover operation smoothly; Owing to adopted the structure that between top connection and lance bar, is designed with leading cone, thereby overlap when milling former casing the introduction slide block and drag for lance and be sitting on the top of fish, can make the fish head get into casing section mill smoothly, prevent to mill bad top of fish.
Description of drawings:
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.
Accompanying drawing is the structural representation of the utility model.
The specific embodiment:
Shown in accompanying drawing, a kind of introduction slide block drags for lance, comprises top connection 1, leading cone 2, lance bar 4, slip segment 5 and lower contact 6; Be designed with leading cone 2 between top connection 1 and the lance bar 4; Top connection 1, leading cone 2, lance bar 4 and lower contact 6 adopt the round steel one to process, and the heart is designed with central through hole 3 therein, is designed with box in the top connection 1; Lower contact 6 lower ends are designed with pin thread, and slip segment 5 is installed on the lance bar 4.
It is understandable that; More than about the specific descriptions of the utility model; Only be used to the utility model is described and be not to be subject to the described technical scheme of the utility model embodiment; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model, to reach identical technique effect; As long as satisfy the use needs, all within the protection domain of the utility model.
Claims (1)
1. an introduction slide block drags for lance, comprises top connection (1), leading cone (2), lance bar (4), slip segment (5) and lower contact (6); It is characterized in that: be designed with leading cone (2) between top connection (1) and the lance bar (4); Top connection (1), leading cone (2), lance bar (4) and lower contact (6) adopt the round steel one to process; And the heart is designed with central through hole (3) therein; Top connection is designed with box on (1), and lower contact (6) lower end is designed with pin thread, and slip segment (5) is installed on the lance bar (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201460672U CN202510077U (en) | 2012-03-31 | 2012-03-31 | Guiding sliding block trip spear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201460672U CN202510077U (en) | 2012-03-31 | 2012-03-31 | Guiding sliding block trip spear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202510077U true CN202510077U (en) | 2012-10-31 |
Family
ID=47062569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201460672U Expired - Fee Related CN202510077U (en) | 2012-03-31 | 2012-03-31 | Guiding sliding block trip spear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202510077U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223892A (en) * | 2016-08-30 | 2016-12-14 | 中煤特殊凿井有限责任公司 | Slide block type fisher |
-
2012
- 2012-03-31 CN CN2012201460672U patent/CN202510077U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223892A (en) * | 2016-08-30 | 2016-12-14 | 中煤特殊凿井有限责任公司 | Slide block type fisher |
| CN106223892B (en) * | 2016-08-30 | 2019-05-14 | 中煤特殊凿井有限责任公司 | Slide block type fisher |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20130331 |