CN203847034U - Center spear of sleeves - Google Patents
Center spear of sleeves Download PDFInfo
- Publication number
- CN203847034U CN203847034U CN201420241272.6U CN201420241272U CN203847034U CN 203847034 U CN203847034 U CN 203847034U CN 201420241272 U CN201420241272 U CN 201420241272U CN 203847034 U CN203847034 U CN 203847034U
- Authority
- CN
- China
- Prior art keywords
- lance
- spear
- board
- sleeve body
- hook
- 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
Links
Abstract
The utility model discloses a center spear of sleeves. The center spear is mainly formed by a sleeve body and a sleeve coupling arranged at one end of the sleeve body. Plate-type spear hook sets are arranged in the sleeve body, each plate-type spear hook set is formed by a plurality of plate-type spear hooks distributed on the inner surface of the sleeve body in the circumferential direction at intervals, and each plate-type spear hook is upwards slant. The two or more plate-type spear hook sets are arranged on the inner surface of the sleeve body in the axis direction at intervals. Each plate-type spear hook is of a triangular plate-shaped structure or a quadrilateral plate-shaped structure. The sleeve body and the plate-type spear hooks are integrally molded. The center spear has the advantages of being simple in structure, convenient to machine, low in investment cost and wide in application, the center spear can be rapidly manufactured under the condition that a conventional fishing tool is damaged or fishing is ineffective, and the center spear is used for fishing the 13-3/8'' sleeves.
Description
Technical field
The utility model relates to offshore oilfield field of engineering technology, is specifically a kind ofly suitable for salvaging 13-3/8 " sleeve pipe of sleeve pipe drags for lance outward.
Background technology
In marine drilling, " sleeve pipe belongs to protective casing to 13-3/8, is mainly used in the oil-gas Layer of isolating unstable well section, lost-circulation zone, pressure anomaly stratum and wouldn't exploit.Its normal sealing normal pressure or stratum, abnormal pressure district, and must isolate all payzones with cement sheath.The conventional instrument of salvaging tubing junk has: die nipple, female coupling tap, slider slips drag for lance, box cupling drag for lance, returnable fishing spear, slips drag for lance, can move back drag for bucket, back-off drags for bucket and drags for lance etc., as these instruments uses are last, all need first with lead stamp, to confirm top of fish shape, affect timeliness; And sometimes salvage invalid or in salvaging process, after damage, can not continue to salvage.For addressing the above problem, invent a kind of 13-3/8 and " outside sleeve pipe is simple and easy, dragged for lance.
It is CN203559852U that State Intellectual Property Office discloses publication number on April 23rd, 2014, patent name is the utility model patent that drags for spearhead structure for fisher, what comprise structure coning drags for spearhead head, be positioned at and drag for spearhead head bottom and be extended with frustum cone structure, the bottom of described frustum cone structure is extended with cylindrical structure, the bottom interval of described cylindrical structure is provided with parallel junction plate, on described junction plate, has installing hole; Described bottom of dragging for spearhead head is provided with inclined-plane, and described inclined-plane drags for spearhead head inner inclination to conical structure.The utility model compact conformation, easy to make, by conical, drag for the inclined-plane that spearhead head bottom arranges, effectively prevent from blocking the phenomenon of deviating from while dragging for spearhead at fisher, its dependability is good, and operating efficiency is high.
It is CN202866724U that State Intellectual Property Office discloses publication number on April 10th, 2013, patent name is a kind of utility model patent of sliding block trip spear, the utility model relates to a kind of sliding block trip spear, belong to petroleum exploration and development profit gas well well workover fishing technical field of tools, by top connection, drag for shaft, slider slips, guide shoe and form, top connection is eccentric joint, its lower end with drag for shaft and be threaded; The guide shoe that drags for shaft lower end is nib shape.When salvaging the multistage junk of being close to side by side casing wall, due to the effect of eccentric joint and nib shape guide shoe, eccentric shoe drags for the lower end of lance and is close to casing wall, can successfully enter fish chamber, the object that obtains junk is dragged in realization, carries out simple switch operation under complex situations.
It is CN2721861Y that State Intellectual Property Office discloses publication number on August 31st, 2005, patent name is the utility model patent of reversible bulldog spear for declined well, the reversible bulldog spear for declined well of the use in a kind of petroleum works, comprise fishing spear shaft 2, retaining screw 1, on the top of fishing spear shaft 2, add retaining screw 1, efficiently solve high angle hole section and salvage the particular problem existing in construction, the deficiency of having avoided conventional reversible slips fishing spear to exist, has improved the fishing success ratio of high angle hole section tubing string fish.
Above-mentioned patent is completely different from the technical scheme of this patent.
Summary of the invention
The purpose of this utility model is to provide a kind of sleeve pipe simple in structure, easy to process, that cost of investment is low and drags for lance outward.Sleeve pipe drags for lance outward and adapts to the 13-3/8 using in current marine drilling " sleeve pipe is salvaged, solve in such sleeve pipe salvaging process that Special fishing tool damages or invalid situation under to 13-3/8, " sleeve pipe is salvaged problem.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of sleeve pipe drags for lance outward, its main sleeve body and the casing coupling formation that is located at sleeve body one end, in described sleeve body, be provided with board-like lance hook group, board-like lance hook group is to consist of the circumferential board-like lance hook spaced apart of a plurality of inner surfaces along sleeve body, and each board-like lance hook is inclined upwardly.
The described inner surface in sleeve body is intervally distributed with more than two board-like lance hook group along axis direction.
Described board-like lance hook group is provided with 3.
Described board-like lance hook group is to consist of 4 board-like lance hooks, and the angle between each board-like lance hook and the axis of sleeve body is 45o.
Described board-like lance hook is the tabular structure of triangle or the tabular structure of quadrangle.
Described sleeve body and board-like lance hook are one-body molded.
The beneficial effects of the utility model:
1) simple in structure, easy to process, cost of investment is low.
2) application prospect is good, and making rapidoprint scene has, and can damage or salvage under invalid situation at conventional Fishing Tools and make rapidly and " the sleeve pipe salvaging for 13-3/8.
3) remarkable in economical benefits, can extensive use in ocean and land oil gas field engineering field.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the top view shown in Fig. 1.
In figure: 1, sleeve body; 2, casing coupling; 3, board-like lance hook.
The specific embodiment
As shown in Figure 1, 2, a kind of sleeve pipe drags for lance outward, its main sleeve body 1 and casing coupling 2 formations that are located at sleeve body 1 one end, in described sleeve body 1, be provided with board-like lance hook group, board-like lance hook group is to consist of the circumferential board-like lance hook 3 spaced apart of 4 inner surfaces along sleeve body, each board-like lance hook 3 is inclined upwardly, and the angle between each board-like lance hook 3 and the axis of sleeve body 1 is 45o.Inner surface in sleeve body 1 is intervally distributed with 3 board-like lance hook groups from top to bottom along axis direction.
Described board-like lance hook 3 is the tabular structure of triangle.Described sleeve body 1 is one-body molded with board-like lance hook 3.
Making of the present utility model and application:
1. make: intercept at the scene the general 4-5m of a segment length with box cupling 20 " sleeve pipe is often separated by 90 on the circumference of certain position below box cupling
.with chalk, draw on request triangle or tetragonal all limits, and ensure a limit be perpendicular to quill to, by acetylene-oxygen cutting method, along the limit of finishing, cut out again the line of rabbet joint (perpendicular to quill to base do not cut), again with iron hammer by triangle or quadrangle along not having the base of cutting to knock in sleeve pipe, make triangle or quadrangle along base to infolding, until the distance between the distance between two relative triangular apex or relative two quadrangle top margins is less than or equal to 13-3/8 ", in like manner at its lower certain distance, again make 1-2 time.
2. install: first by the 13-3/8 of making " sleeve pipe drags for lance outward and is sitting on slips; with top, drive next root 20 of lifting " sleeve pipe makes its pin thread aim at the 13-3/8 making " sleeve pipe and drag for lance box port outward; lower caving is ordered about one 20 " sleeve pipe is sitting in the 13-3/8 of making " sleeve pipe and dragged for lance box port outward, then with detaining on casing tong.
3. unloading: after having salvaged, top is driven and carried 20 " sleeve pipe; make the 13-3/8 of making ", and sleeve pipe drags for lance box cupling outward over turntable surface certain distance seat slips, with after casing tong shackle, get rid of 20 " sleeve pipes; 13-3/8 " casing elevator can be buckled the 13-3/8 of the making " sleeve pipe of transferring on long suspension ring is driven in top and drag for lance outward, Shang Tiding drives the 13-3/8 that gets rid of making, and " sleeve pipe drags for lance outward above.
The above is preferred embodiment of the present utility model; certainly can not limit with this interest field of the utility model; should be understood that; for those skilled in the art; the technical solution of the utility model is modified or is equal to replacement, do not depart from the protection domain of technical solutions of the utility model.
Claims (6)
1. a sleeve pipe drags for lance outward, it is characterized in that: its main sleeve body and the casing coupling formation that is located at sleeve body one end, in described sleeve body, be provided with board-like lance hook group, board-like lance hook group is to consist of the circumferential board-like lance hook spaced apart of a plurality of inner surfaces along sleeve body, and each board-like lance hook is inclined upwardly.
2. sleeve pipe according to claim 1 drags for lance outward, it is characterized in that: the described inner surface in sleeve body is intervally distributed with more than two board-like lance hook group along axis direction.
3. sleeve pipe according to claim 1 and 2 drags for lance outward, it is characterized in that: described board-like lance hook group is provided with 3.
4. sleeve pipe according to claim 3 drags for lance outward, it is characterized in that: described board-like lance hook group is to consist of 4 board-like lance hooks, and the angle between each board-like lance hook and the axis of sleeve body is 45o.
5. sleeve pipe according to claim 1 drags for lance outward, it is characterized in that: described board-like lance hook is the tabular structure of triangle or the tabular structure of quadrangle.
6. sleeve pipe according to claim 1 drags for lance outward, it is characterized in that: described sleeve body and board-like lance hook are one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241272.6U CN203847034U (en) | 2014-05-13 | 2014-05-13 | Center spear of sleeves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241272.6U CN203847034U (en) | 2014-05-13 | 2014-05-13 | Center spear of sleeves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847034U true CN203847034U (en) | 2014-09-24 |
Family
ID=51560068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420241272.6U Expired - Fee Related CN203847034U (en) | 2014-05-13 | 2014-05-13 | Center spear of sleeves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847034U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847289A (en) * | 2015-06-08 | 2015-08-19 | 山东鲁潍机械厂 | Fishing device for water delivery steel tube in water source well |
| CN107345477A (en) * | 2016-05-06 | 2017-11-14 | 中石化石油工程技术服务有限公司 | Flexible fish fishing tool and preparation method thereof |
-
2014
- 2014-05-13 CN CN201420241272.6U patent/CN203847034U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847289A (en) * | 2015-06-08 | 2015-08-19 | 山东鲁潍机械厂 | Fishing device for water delivery steel tube in water source well |
| CN104847289B (en) * | 2015-06-08 | 2018-09-28 | 山东省煤田地质局第四勘探队 | Water conveyance steel tube fishing device in a kind of water supply well |
| CN107345477A (en) * | 2016-05-06 | 2017-11-14 | 中石化石油工程技术服务有限公司 | Flexible fish fishing tool and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC (China) Limited Zhanjiang Branch Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 China oil tower, 25 Chaoyangmen North Street, Dongcheng District, Beijing Co-patentee before: CNOOC (China) Limited Zhanjiang Branch Patentee before: China National Offshore Oil Corporation |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20210513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |