CN103470205A - Anti-jarring reversing fishing spear - Google Patents
Anti-jarring reversing fishing spear Download PDFInfo
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- CN103470205A CN103470205A CN2013104181904A CN201310418190A CN103470205A CN 103470205 A CN103470205 A CN 103470205A CN 2013104181904 A CN2013104181904 A CN 2013104181904A CN 201310418190 A CN201310418190 A CN 201310418190A CN 103470205 A CN103470205 A CN 103470205A
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- lance
- spear
- jarring
- fishing
- reversing
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Abstract
The invention relates to an anti-jarring reversing fishing spear. The anti-jarring reversing fishing spear comprises a top connector, a spear rod threadedly connected with the top connector, and a spear tile arranged on the spear rod in a sleeve mode. The anti-jarring reversing fishing spear is characterized in that the spear rod and the top connector are fastened through an anti-twist pin, an auxiliary spring which is arranged on the spear rod in a sleeve mode is arranged between one end of the top connector and the spear tile, and a fishing spear base and a guide cone are arranged on the spear rod in a sleeve mode through threads. The anti-jarring reversing fishing spear has the advantages that the release mode between the fishing spear and the a falling drill string is changed to increase the operation functions of the fishing spear and to achieve the effect of long-time jarring and convenient reversing and releasing, so that resources are saved and the success rate of operation is improved. The anti-jarring reversing fishing spear can be widely applied to operation of drilling, well completion and well maintenance, solves the problems of resource backlogging due to fishing spears of different functional types, difficulties of tool selection of complex situations and large influences of subjective factors in an operation process, and can be preferably used for solving problems particularly in situation that the sticking reasons and sticking points of the underground falling drill string are not clear.
Description
Technical field
The invention belongs to the oil well technical field of tools, particularly relate to a kind of shock-proof reverse buckling type and drag for lance.
Background technology
At present, offshore oilfield for the continuity that meets operation and the X factor in the strain operation process, often can mobilize polytype fishing tool to operation field in fishing, causes the fishing tool resource to overstock.Even polytype fishing tool all set sometimes, but for some down-hole fish situations not the problem of very clear (bit freezing type, stuck point position etc.), select suitable instrument still more difficult, and operating personnel's experience and analyze the subjective factors such as judgement hole condition ability the selection of fishing tool is played a leading role.Well for the hole condition more complicated, often there will be down-hole fish chance card form indefinite, the uncertain situation of stuck point, dragging for lance tile structure form and the shaft of lance and drag for the lance base due to routine is the integral type structure, determine that routine drags for lance and salvage the fish jarring can not unfreezing the time, be not suitable for back-off operation, and through dragging for the lance difficulty of slipping out of the hand after long-time jarring; Perhaps use left hand fishing spear to be not suitable for again the situation of jarring.So not only affect fishing success ratio and drag for the operating characteristics of lance, but also having increased the operational risk of dragging for lance.
Summary of the invention
The present invention provides a kind of shock-proof reverse buckling type to drag for lance for solving the technical problem existed in known technology.
This shock-proof reverse buckling type drags for the mode of slipping out of the hand that lance will drag for lance and changes into the forward mode of dragging for lance base (bull left-handed nut) of slipping out of the hand and realize slipping out of the hand, indefinite in down-hole fish chance card form, in the uncertain situation of stuck point, can improve fishing success ratio by adopting this shock-proof reverse buckling type to drag for lance, drag for and obtain after fish as invalidly as jarring, can realize that the segmentation back-off salvages fish.By dragging for lance base (bull left-handed nut) the forward function of slipping out of the hand, not only solved under the complex hole condition (long-time jarring etc.) routine and dragged for slip out of the hand difficulty (brute force is slipped out of the hand and easily caused slips to damage the risk of well) and left hand fishing spear of lance and be not suitable for the problems such as jarring, but also can improve fishing success ratio and operating characteristics and reduce the operational risk of dragging for the lance instrument.
The technical scheme that the present invention takes for the technical problem existed in the solution known technology is:
The shock-proof reverse buckling type drags for lance, comprise top joint, the shaft be connected with the top joint screw thread and be sleeved on the lance watt on shaft, described shaft is connected fastening with the top joint by anti-twist pin nail, be provided with the power assistant spring be sleeved on shaft between top joint one end and lance watt, on described shaft, also by thread bush, be equipped with and drag for lance base and leading cone.
The present invention can also adopt following technical scheme:
Described shaft is by left-handed left-hand thread screw thread and drag for lance base suit.
The described lance base one end outside of dragging for is shaped be convenient to coordinate with lance watt domatic.
Described power assistant spring adopts is convenient to the left-handed spring that lance watt is slipped out of the hand, and is equipped with to subtract at described left-handed spring two ends and turns round packing ring.
Advantage and good effect that the present invention has are: because the present invention adopts technique scheme, by dragging for lance base (bull left-handed nut) self and left-handed left-hand thread screw thread of being connected of shaft, and slightly detain for bull, not only can solve the conventional lance that drags for and be not suitable for the problem that back-off and left hand fishing spear are not suitable for jarring, for the characteristic of fish down-hole situation complexity, improved to a great extent job success ratio.By forward drilling tool implementation tool, slip out of the hand, drilling tool drives lance body forward, and lance watt is killed restriction with fish and dragged for the rotation of lance base, the rotation of lance base and lance body is dragged in realization, and left-handed left-hand thread screw thread is thrown off, and drags for the lance base descending, lance watt reaches lance body spacing ring place and stops descendingly, is convenient to implementation tool and slips out of the hand.By changing the mode that struts of lance watt, the salvaging scope that lance is dragged in expansion, increase the operation function that drags for lance, reaches saving resource, improved job success ratio.
This shock-proof reverse buckling type drags for lance and can be widely used in drilling well, completion, workover treatment, can be for different well (or sleeve pipe) size, be processed into different model, solve the difference in functionality type run in operation process and drag for that resource that lance produces overstocks and the complex situations instrument selects difficulty and subjective factor to affect large phenomenon.Especially meeting card reason and the unsharp situation of stuck point for the down-hole fish at first can consider to apply this kind and drag for lance and solve problem.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, top joint; 2, anti-twist pin nail; 3, packing ring; 4, power assistant spring; 5, lance watt; 6, drag for the lance base; 7, shaft; 8, leading cone (bottom joint); 9, sealing ring; 10, pin for suppressing metal.
The specific embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, the shock-proof reverse buckling type drags for lance, comprises top joint 1, the shaft 7 be connected with the top joint screw thread and is sleeved on lance on shaft watts 5, and described shaft is connected fastening with the top joint by anti-twist pin nail 2.Be provided with the power assistant spring 4 be sleeved on shaft between top joint one end and lance watt, described power assistant spring 4 one ends withstand top joint one end face, and the other end withstands between a lance watt end ， top joint and power assistant spring seal washer 3 is housed.The outer leading cone 8(bottom joint that is connected with pin for suppressing metal 10 by screw thread of the described shaft other end), at described shaft and top joint and leading cone 8(bottom joint) connecting portion be equipped with sealing ring 9.
Also by thread bush, be equipped with and drag for lance base 6 on described shaft, described shaft is set with dragging for the lance base by left-handed left-hand thread screw thread, and the bull of slipping out of the hand for ease of rotation is slightly detained.The described lance base one end outside of dragging for is shaped be convenient to coordinate with lance watt domatic, describedly domaticly fully coordinates with lance watt and can realize larger salvaging size.
The left-handed spring of described power assistant spring for ease of salvaging, described power assistant spring adopts the material with higher elasticity and intensity to make, to the active force of lance watt, and very applicable for high angle hole, horizontal well and extended reach well etc. when left-handed spring can reduce to slip out of the hand.
It is large that this shock-proof reverse buckling type drags in lance latus rectum, and bottom can connect other instrument, increased safety and applicability that instrument uses.
The button-type that this shock-proof reverse buckling type drags for lance top sub 1 will be designed to the drilling tool button-type commonly used in operation process, leading cone 8(bottom joint) be designed to be less than the drilling tool button-type commonly used of fish internal diameter (drag for lance and salvage size), the convenient leading cone that connects also can connect other instrument.
Operating principle of the present invention is:
Slowly transfer drilling tool, the shock-proof reverse buckling type is dragged for to lance and introduce the fish chamber, under the effect of power assistant spring, lance watt is bitten with the fish chamber, above carries drilling tool, realizes salvaging.Drag for after obtaining fish and can attempt jarring releasing, as invalid as jarring, can implement back-off segmental salvage fish, this instrument can be slipped out of the hand by forward drilling tool implementation tool, and drilling tool drives the shaft forward, lance watt is killed restriction with fish and is dragged for the rotation of lance base, the rotation of lance base and shaft is dragged in realization, drags for the left hand thread of lance base and shaft and throws off, and drags for the lance base descending, lance watt reaches lance body spacing ring place and stops descendingly, and implementation tool is slipped out of the hand.
Instrument is carried in process on entering after fish, and lance watt drags for the domatic of lance base with respect to the descending dependence of shaft slips is strutted, and stings consolidation with fish and now salvages.
This shock-proof reverse buckling type drags for lance, and to salvage mechanism simple and clear, easy to operate, drags for and obtain after fish jarring releasing for a long time, as invalidly as jarring also can realize segmentation back-off salvaging fish, and have the convenient and reliable ability of certainly slipping out of the hand, and can not cause the problems such as the down-hole situation is complicated.
Claims (4)
1. a shock-proof reverse buckling type drags for lance, comprise top joint, the shaft be connected with the top joint screw thread and be sleeved on the lance watt on shaft, it is characterized in that: described shaft is connected fastening with the top joint by anti-twist pin nail, be provided with the power assistant spring be sleeved on shaft between top joint one end and lance watt, on described shaft, also by thread bush, be equipped with and drag for lance base and leading cone.
2. shock-proof reverse buckling type according to claim 1 drags for lance, it is characterized in that: described shaft is by bull left hand thread and drag for lance base suit.
3. shock-proof reverse buckling type according to claim 2 drags for lance, it is characterized in that: the described lance base one end outside of dragging for is shaped be convenient to coordinate with lance watt domatic.
4. shock-proof reverse buckling type according to claim 1 drags for lance, it is characterized in that: described power assistant spring adopts is convenient to the left-handed spring that lance watt is slipped out of the hand, and is equipped with to subtract at described left-handed spring two ends and turns round packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104181904A CN103470205A (en) | 2013-09-13 | 2013-09-13 | Anti-jarring reversing fishing spear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104181904A CN103470205A (en) | 2013-09-13 | 2013-09-13 | Anti-jarring reversing fishing spear |
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| Publication Number | Publication Date |
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| CN103470205A true CN103470205A (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104181904A Pending CN103470205A (en) | 2013-09-13 | 2013-09-13 | Anti-jarring reversing fishing spear |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265225A (en) * | 2014-09-16 | 2015-01-07 | 四川省一三五勘察设计有限公司 | Salvage anchor and salvage method for wire-line core drilling |
| CN104405324A (en) * | 2014-11-20 | 2015-03-11 | 中国海洋石油总公司 | Rotating spear |
| CN104747113A (en) * | 2013-12-31 | 2015-07-01 | 贵州高峰石油机械股份有限公司 | Packer in recycling oil well air drill |
Citations (6)
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|---|---|---|---|---|
| US3960399A (en) * | 1974-12-16 | 1976-06-01 | Alex Dufrene | Setting and retrieval device for down-hole equipment |
| CN2864083Y (en) * | 2005-12-02 | 2007-01-31 | 中国石化胜利油田有限公司采油工艺研究院 | Lifting-putting fishing tool capable of withdrawing |
| CN201865611U (en) * | 2010-11-23 | 2011-06-15 | 通化市远通石油机械有限责任公司 | Reversing spear |
| CN202284458U (en) * | 2011-11-11 | 2012-06-27 | 通化市远通石油机械有限责任公司 | Sealed backoff fishing spear |
| CN202914011U (en) * | 2012-10-31 | 2013-05-01 | 中国石油集团川庆钻探工程有限公司 | Drill grinding locking fishing tool for oil gas well |
| CN203441415U (en) * | 2013-09-13 | 2014-02-19 | 中国海洋石油总公司 | Anti-knocking reverse buckling type fishing spear |
-
2013
- 2013-09-13 CN CN2013104181904A patent/CN103470205A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960399A (en) * | 1974-12-16 | 1976-06-01 | Alex Dufrene | Setting and retrieval device for down-hole equipment |
| CN2864083Y (en) * | 2005-12-02 | 2007-01-31 | 中国石化胜利油田有限公司采油工艺研究院 | Lifting-putting fishing tool capable of withdrawing |
| CN201865611U (en) * | 2010-11-23 | 2011-06-15 | 通化市远通石油机械有限责任公司 | Reversing spear |
| CN202284458U (en) * | 2011-11-11 | 2012-06-27 | 通化市远通石油机械有限责任公司 | Sealed backoff fishing spear |
| CN202914011U (en) * | 2012-10-31 | 2013-05-01 | 中国石油集团川庆钻探工程有限公司 | Drill grinding locking fishing tool for oil gas well |
| CN203441415U (en) * | 2013-09-13 | 2014-02-19 | 中国海洋石油总公司 | Anti-knocking reverse buckling type fishing spear |
Non-Patent Citations (1)
| Title |
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| 颜生鹏等: "倒扣捞矛使用中的问题与改进试验", 《工程与试验》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747113A (en) * | 2013-12-31 | 2015-07-01 | 贵州高峰石油机械股份有限公司 | Packer in recycling oil well air drill |
| CN104265225A (en) * | 2014-09-16 | 2015-01-07 | 四川省一三五勘察设计有限公司 | Salvage anchor and salvage method for wire-line core drilling |
| CN104265225B (en) * | 2014-09-16 | 2017-06-30 | 四川省美地佳源实业有限公司 | It is applied to the salvaging anchor and overshot of wire line core drilling |
| CN104405324A (en) * | 2014-11-20 | 2015-03-11 | 中国海洋石油总公司 | Rotating spear |
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Application publication date: 20131225 |