CN203403851U - Downhole fiber-reinforced continuous composite tube fishing tool of oil field water injection well - Google Patents
Downhole fiber-reinforced continuous composite tube fishing tool of oil field water injection well Download PDFInfo
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- CN203403851U CN203403851U CN201320469378.7U CN201320469378U CN203403851U CN 203403851 U CN203403851 U CN 203403851U CN 201320469378 U CN201320469378 U CN 201320469378U CN 203403851 U CN203403851 U CN 203403851U
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- fishing
- fishing tool
- continuous composite
- water injection
- injection well
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Abstract
The utility model provides a downhole fiber-reinforced continuous composite tube fishing tool of an oil field water injection well, wherein the fishing tool is special for fishing after a fiber-reinforced continuous composite tube falls into the well. The fishing tool comprises a spear fishing body and a sliding block, an slip insert is arranged on the outer end face of the sliding block, a check block is installed at the tail end of a rail, on the lower portion of the sliding block, of the spear fishing body, the spear fishing body is connected with an external working barrel through an upper joint, a well liquid communication hole is formed in the upper portion of the joint between the spear fishing body and the external working barrel so that fluid column pressure inside the well can act on the spear fishing body, and internal force and external force are combined for fishing. The acting points of the fishing tool are uniformly distributed, secondary damage to a fished target tubular product is prevented, the success rate of fishing and integrality of a fished tubular column are improved, and the accident that the tubular columns falls into the well is further prevented. The fishing tool is high in application pertinence and prominent in fishing effect and has good fishing application prospects for downhole tubular products.
Description
Technical field
The utility model belongs to the underground water-injection aid of petroleum industry, especially a kind of water injection well in oil fields down-hole fiber reinforcement continuous composite pipe fishing tool, and this instrument is after falling in well for fiber reinforcement continuous composite pipe, the special tool of salvaging.
Background technology
Fiber reinforcement continuous composite pipe is called for short PVC oil pipe, because the characteristic that PVC oil pipe has is corrosion-resistant, cost is low, the application at the alternative conventional oil pipe of water injection well with fiber reinforcement continuous composite pipe has been carried out in oil field at present, and as process matched therewith, the possibility of pipe column falling well can not be avoided completely.Because the internal diameter of PVC oil pipe is little, existing fishing tool cannot insert; The slider designs of existing fishing tool is less in addition, there is no operate outside cylinder, causes the origin of force of bailing few; Moreover only by fishing tool, from the inside of PVC oil pipe, salvage, also very easily grab broken PVC oil pipe, conventional overhaul fishing tool can not effectively meet the salvaging demand of PVC oil pipe in view of the foregoing, for this reason, according to the characteristic of such tubing, need to develop a kind of fishing tool of special use.
Summary of the invention
The purpose of this utility model is to provide a kind of water injection well in oil fields down-hole fiber reinforcement continuous composite pipe fishing tool, overcome the use limitation of existing metal species down-hole object fishing tool, make its suitable fibers strengthen the salvaging of continuous composite pipe, improve fishing tool to the seizure of flexible composite pipe, bailing efficiency.
Technical solution of the present utility model is: a kind of water injection well in oil fields down-hole fiber reinforcement continuous composite pipe fishing tool comprises and drags for lance body and slide block, slide block outer face is provided with slip insert, below slide block, drag for the track end of lance body block is installed, dragging for lance body is connected with operate outside cylinder by top connection, above its junction, be provided with well liquid intercommunicating pore, so that the head of liquid in well can act on, drag on lance body, salvage inside and outside making a concerted effort.
The utlity model has following useful effect: the utility model is improved appropriately conventional sliding block trip spear, at least design from top to bottom four slide blocks, and be evenly interspersed, the origin of force of instrument is evenly distributed, prevent that the target tubing of salvaging from occurring that secondary is damaged, improve the success rate of salvaging and the integrality of being dragged for tubing string, prevented from further occurring pipe column falling well accident.The application of this instrument is with strong points, salvages remarkably productively, for such downhole tubular goods, has good salvaging application prospect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: referring to Fig. 1, a kind of water injection well in oil fields down-hole fiber reinforcement continuous composite pipe fishing tool comprises and drags for lance body 2 and slide block 3, slide block 3 outer faces are provided with slip insert, below slide block 3, drag for the track end of lance body 2 block 5 is installed, dragging for lance body 2 is connected with operate outside cylinder by top connection 1, above junction, be provided with well liquid intercommunicating pore, so that the head of liquid in well can act on, drag on lance body 2.Slide block 3 is set between 28 degree-32 degree at the inclination angle of dragging for the track on lance body 2.Slide block 3 at least arranges four, is 90 degree and is interspersed and is dragging on lance body 2.Outside slide block 3 like this can coordinate on the circumference of PVC oil pipe, inside and outside dipper 4, evenly put forth effort, guarantee the integrality of salvaged PVC oil pipe.Operate outside cylinder comprises outer dipper 4 and guide shoe 6, and the inner circle of outer dipper 4 is provided with gingival cyst of mucous gland in the newborn button, and the lower end of guide shoe 6 is provided with spiral guiding sword, and outer dipper 4 is threaded connection and installs additional trip bolt with guide shoe 6.Outer dipper 4 is at least provided with a joint, is provided with three joints in the diagram of Fig. 1.Top connection 1 and drag for lance body 2 and outer dipper 4 between limited block is also housed so that outer dipper 4 is more firm with being connected of top connection 1.The cylindrical of limited block is stepped, and its ladder cylindrical and inner circle are equipped with screw thread, respectively with top connection 4 and outer dipper 5 and drag for lance body 2 and be threaded; At top connection 1 and the connection of thread that drags for lance body 2, be also provided with trip bolt.
When this instrument is sent into downwards, these instruments of guide shoe 6 guiding enter after PVC oil pipe, and oil pipe promotes slide block 3 and moves up along the track inclined-plane that drags for lance body 2, and what make slide block 3 holds that bulk reduces gradually until slide block 3 enters in oil pipe.Then upwards lift this instrument, tube inner wall produces a downward reaction force to the slip insert of slide block 3 outer faces, thereby move down along the track inclined-plane that drags for lance body 2 with movable slider 3, until slide block 3 oil pipe with drag for lance body 2 and occur asphyxia by external pressure on the chest and abdomen point, outer dipper 4 has limited the outer bulging deformation of PVC oil pipe simultaneously, at this moment upwards lift this instrument, salvage PVC oil pipe.If lifted in load range allowable, can not salvage oil pipe, forward exits this instrument, after pit shaft is cleaned, again salvages.
Claims (6)
1. a water injection well in oil fields down-hole fiber reinforcement continuous composite pipe fishing tool, comprise and drag for lance body and slide block, slide block outer face is provided with slip insert, below slide block, drag for the track end of lance body block is installed, it is characterized in that, the described lance body that drags for is connected with operate outside cylinder by top connection, is provided with well liquid intercommunicating pore above junction.
2. a kind of water injection well in oil fields down-hole fiber reinforcement continuous composite pipe fishing tool according to claim 1, is characterized in that, described slide block is set between 28 degree-32 degree at the inclination angle of dragging for the track on lance body.
3. a kind of water injection well in oil fields down-hole fiber reinforcement continuous composite pipe fishing tool according to claim 2, is characterized in that, described slide block at least arranges four, is 90 degree and is interspersed and is dragging on lance body.
4. according to a kind of water injection well in oil fields down-hole fiber reinforcement continuous composite pipe fishing tool described in claim 1-or 2 or 3, it is characterized in that, described operate outside cylinder comprises outer dipper and guide shoe, the inner circle of outer dipper is provided with gingival cyst of mucous gland in the newborn button, the lower end of guide shoe is provided with spiral guiding sword, and outer dipper and guide shoe are threaded connection and install additional trip bolt.
5. a kind of water injection well in oil fields down-hole fiber reinforcement continuous composite pipe fishing tool according to claim 4, is characterized in that, described outer dipper is at least provided with a joint.
6. a kind of water injection well in oil fields down-hole fiber reinforcement continuous composite pipe fishing tool according to claim 4, it is characterized in that, described top connection and drag for lance body and outer dipper between limited block is also housed, the cylindrical of limited block is stepped, its ladder cylindrical and inner circle are equipped with screw thread, with top connection and outer dipper and drag for lance body and be threaded, at top connection and the connection of thread that drags for lance body, be also provided with trip bolt
respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320469378.7U CN203403851U (en) | 2013-08-02 | 2013-08-02 | Downhole fiber-reinforced continuous composite tube fishing tool of oil field water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320469378.7U CN203403851U (en) | 2013-08-02 | 2013-08-02 | Downhole fiber-reinforced continuous composite tube fishing tool of oil field water injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203403851U true CN203403851U (en) | 2014-01-22 |
Family
ID=49939790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320469378.7U Expired - Fee Related CN203403851U (en) | 2013-08-02 | 2013-08-02 | Downhole fiber-reinforced continuous composite tube fishing tool of oil field water injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203403851U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806187A (en) * | 2014-01-27 | 2015-07-29 | 牡丹江宏冈石油工具厂 | Non-metal continuous oil tube catch sleeve |
| CN106368642A (en) * | 2016-08-31 | 2017-02-01 | 吉林大学 | Deep well sleeve fishing device provided with automatic telescoping mechanism |
-
2013
- 2013-08-02 CN CN201320469378.7U patent/CN203403851U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806187A (en) * | 2014-01-27 | 2015-07-29 | 牡丹江宏冈石油工具厂 | Non-metal continuous oil tube catch sleeve |
| CN106368642A (en) * | 2016-08-31 | 2017-02-01 | 吉林大学 | Deep well sleeve fishing device provided with automatic telescoping mechanism |
| CN106368642B (en) * | 2016-08-31 | 2018-08-31 | 吉林大学 | A kind of Deep Well Casings fisher with auto-telescopic mechanism |
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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: 20140122 Termination date: 20160802 |