CN202767930U - Slider-type piercing wireline fisher - Google Patents
Slider-type piercing wireline fisher Download PDFInfo
- Publication number
- CN202767930U CN202767930U CN 201220506315 CN201220506315U CN202767930U CN 202767930 U CN202767930 U CN 202767930U CN 201220506315 CN201220506315 CN 201220506315 CN 201220506315 U CN201220506315 U CN 201220506315U CN 202767930 U CN202767930 U CN 202767930U
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- Prior art keywords
- fisher
- drilling tool
- fishing
- tool
- drill rod
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- Expired - Fee Related
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Abstract
The utility model discloses a slider-type piercing wireline fisher which comprises a drill rod joint, a locking ring, an anti-drilling jackscrew, a drill rod, a fisher body, sliders, springs, cover plates and water channels. The slider-type piercing wireline fisher is characterized in that the sliders provided with radial force by the springs are disposed inside the fisher body, the drill rod joint is connected with the fisher body through the drill rod, the locking ring is disposed inside the drill rod, and three water channels are evenly distributed inside the fisher body. During operation, the neck of a mushroom head of a tool are clamped by the three sliders for releasing and fishing, wherein the sliders are evenly distributed on the radial plane of the fisher and provided with the springs and radial thrust. During fishing, whether fishing the tool succeeds or not is judged by lifting up a drilling tool for observation of change in wireline tension and changes in displacement and pumping pressure of circulating mud before and after lowering the drilling tool. Jamming is released by means of lowering the drilling tool, rotating the drill tool, turning the circulating mud and the like anytime. The limitation that the drilling tool fails to be turned in lifting process of the drilling tool after fishing is eliminated, and fishing success rate is increased.
Description
Technical field
The utility model relates to a kind of oil reservoir logging construction equipment, i.e. a kind of unfreezing of downhole probe and marine salvage equipment.
Background technology
In the oil reservoir logging work progress, downhole probe can be run into fracture or stuck phenomenon on the borehole wall when the down-hole, at this moment just needs a kind of salvaging apparatus with the downhole probe unfreezing or pulls out.The common cable punching fisher of promoting the use of has holding type, three ball formulas, slip-type etc. several in each oil field at present.Holding type cable punching fisher is to utilize the stay mushroom head neck of well instrument of its inner four flat spring steel plate clamps of installing to carry out unfreezing and salvaging, it judges whether instrument can only toply be carried drilling tool observation cable stretch and whether reduce in the salvaging, pump amount and pump pressure when being difficult to advance mud circulation before and after the cylinder with instrument are judged, the factor that affects fishing success ratio is too many, easy wearing and tearing cable, fishing success ratio is low; Three ball formula cable punching fishers are to utilize three interior steel balls of its interior ramp groove to block the fishing head of instrument, slip-type cable punching fisher is to utilize its inner spiral slips to bite the fishing head of instrument, the two pump amount and pump pressure when judging that variation that whether instrument all can be adopted on salvaging carries drilling tool observation period cable stretch and optical viewer advance circulating mud before and after the cylinder is judged, success rate is higher, but carry in the process at drilling tool and can not transfer rapidly or rotate drilling tool, salvage unsuccessfully otherwise easily cause, and, it is not obvious that instrument advances pump pressure and a pump quantitative changeization of front and back circulating mud, is difficult to judge whether instrument advances cylinder.
Summary of the invention
The utility model has remedied the weak point of above several types fisher, provides a kind of fishing success ratio higher slide block type cable punching fisher.
A kind of slide block type cable punching fisher described in the utility model, comprise: tool joint, anti-lost ring, anti-drilling jackscrew, drilling rod, fisher main body, slide block, spring, cover plate, tank, its characteristics are: slide block cooperates with spring, be installed in the fisher main body, cover plate is equipped with in the outside of spring, connect with drilling rod between tool joint and the fisher main body, connector is anti-drilling jackscrew, drilling rod is equipped with anti-lost ring near an end inside of tool joint, and three uniform sink structures are arranged in the fisher main body.During work, utilize three of uniform installation on its sagittal plane mushroom head necks that block instrument with spring and slide block with radial thrust to carry out unfreezing and salvaging, in the salvaging process, carrying drilling tool in the employing observes the variation of its cable stretch and transfers that pump amount and the pump pressure of circulating mud changes to judge whether instrument is salvaged successfully before and after the drilling tool, confidence level is higher, salvage end rear in putting forward the drilling tool process, carry out unfreezing if can transfer at any time drilling tool when drilling tool is met card with methods such as rotation drilling tool and circulating muds, removed after salvaging end and proposed the confinement that to rotate drilling tool in the drilling tool process, improved significantly fishing success ratio.
The utility model slide block type cable punching fisher, after having removed the salvaging end, carry and improved significantly fishing success ratio on the basis that can not rotate drilling tool in the drilling tool process, unique spring block structure design, the accuracy rate that makes instrument advance cylinder improves greatly, be subjected to the impact of extraneous factor less, obtained significant economic benefit and social benefit.
Description of drawings
Accompanying drawing 1 is the structural representation of this utility model structure
The specific embodiment
Below in conjunction with description of drawings the utility model is further elaborated.
A kind of slide block type cable punching fisher described in the utility model, comprise: tool joint 1, anti-lost ring 2, anti-drilling jackscrew 3, drilling rod 4, fisher main body 5, slide block 6, spring 7, cover plate 8, tank 9, its characteristics are: slide block 6 cooperates with spring 7, be installed in the fisher main body 5, cover plate 8 is equipped with in the outside of spring 6, connect with drilling rod 4 between tool joint 1 and the fisher main body 5, connector is anti-drilling jackscrew 3, drilling rod 4 is equipped with anti-lost ring 2 near an end inside of tool joint 1, and three uniform tank 9 structures are arranged in the fisher main body 5.During work, utilize three of uniform installation on its sagittal plane mushroom head necks that block instrument with spring 7 and slide block 6 with radial thrust to carry out unfreezing and salvaging, in the salvaging process, because slide block is received thrust radially, as long as the centrifugal force that drilling tool when rotation slide block produces less than its thrust then the function of slide block just can not lose efficacy, this has just removed and proposed the confinement that can not rotate drilling tool in the drilling tool process after salvaging end, the processing that is blocked accident for drilling tool provides condition, inwall at fisher has designed three flume channels, in three-channel top design one 40 the degree drift angle taper hole, the mushroom head of downhole probe just blocks taper hole when transferring drilling tool, also just blocked slurry channel, strengthened the variation that instrument advances cylinder front and back slush pump amount and pump pressure, for judging whether instrument advances cylinder and unfreezing provides condition, has improved significantly fishing success ratio.
Claims (2)
1. slide block type cable punching fisher, comprise: tool joint (1), anti-lost ring (2), anti-drilling jackscrew (3), drilling rod (4), fisher main body (5), slide block (6), spring (7), cover plate (8), tank (9), its characteristics are: slide block (6) cooperates with spring (7), be installed in the fisher main body (5), drilling rod (4) is equipped with anti-lost ring (2) near an end inside of tool joint (1), and uniform three tanks (9) structure is arranged in the fisher main body (5).
2. slide block type cable punching fisher according to claim 1, its characteristics also are: slide block (6) is distributed on the same sagittal plane, for it provides radial thrust, three tanks (9) structure is slurry channel by spring (7), and tank (9) top is the taper hole structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220506315 CN202767930U (en) | 2012-09-27 | 2012-09-27 | Slider-type piercing wireline fisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220506315 CN202767930U (en) | 2012-09-27 | 2012-09-27 | Slider-type piercing wireline fisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202767930U true CN202767930U (en) | 2013-03-06 |
Family
ID=47774513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220506315 Expired - Fee Related CN202767930U (en) | 2012-09-27 | 2012-09-27 | Slider-type piercing wireline fisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202767930U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594852A (en) * | 2014-11-25 | 2015-05-06 | 牡丹江天擎科技有限公司 | Quick connector falling prevention valve |
| CN111335838A (en) * | 2020-03-25 | 2020-06-26 | 深圳市工勘岩土集团有限公司 | Salvaging method for down-the-hole hammer drilling tool |
| CN114991695A (en) * | 2022-06-21 | 2022-09-02 | 中煤科工集团重庆研究院有限公司 | Self-locking drill rod fishing tool |
-
2012
- 2012-09-27 CN CN 201220506315 patent/CN202767930U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594852A (en) * | 2014-11-25 | 2015-05-06 | 牡丹江天擎科技有限公司 | Quick connector falling prevention valve |
| CN111335838A (en) * | 2020-03-25 | 2020-06-26 | 深圳市工勘岩土集团有限公司 | Salvaging method for down-the-hole hammer drilling tool |
| CN111335838B (en) * | 2020-03-25 | 2022-03-22 | 深圳市工勘岩土集团有限公司 | Salvaging method for down-the-hole hammer drilling tool |
| CN114991695A (en) * | 2022-06-21 | 2022-09-02 | 中煤科工集团重庆研究院有限公司 | Self-locking drill rod fishing tool |
| CN114991695B (en) * | 2022-06-21 | 2023-11-03 | 中煤科工集团重庆研究院有限公司 | Self-locking type drill rod fishing tool |
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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: 20130306 Termination date: 20130927 |