CN201116458Y - Sand flushing reducing fishing spear - Google Patents
Sand flushing reducing fishing spear Download PDFInfo
- Publication number
- CN201116458Y CN201116458Y CNU2007200163305U CN200720016330U CN201116458Y CN 201116458 Y CN201116458 Y CN 201116458Y CN U2007200163305 U CNU2007200163305 U CN U2007200163305U CN 200720016330 U CN200720016330 U CN 200720016330U CN 201116458 Y CN201116458 Y CN 201116458Y
- Authority
- CN
- China
- Prior art keywords
- anchor
- block
- sand washing
- screw bolt
- anchor body
- 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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Abstract
A novel sand washing tapered spear for sand washing and salvaging in oil field remedial work comprises an upper connector, an anchor, an M8 screw bolt, a pad, a slide block, a stop and an M6 screw bolt, wherein the upper connector is in screwed connection with the anchor, the M8 screw bolt penetrates the semicircle pad to be fixed on the anchor, the M6 screw bolt penetrates the cylindrical stop to be fixed on the anchor, the semicircle tapered pad slides on the anchor and is limited by the stop. The novel sand washing tapered spear resolves the problem existing in the prior arts that effective salvage can not be performed by the existing various spears when fish clings to the well face and is out of center and sand burying and the like. Subsequently the novel sand washing tapered spear can be widely used in oil field remedial work.
Description
Technical field:
A kind of New Type Sand-Wash reducing that the utility model relates to a kind of oil well repairing operation sand washing salvaging usefulness drags for lance.
Background technology:
The lance that drags for that present oilfield downhole operation is used at the tubulose fishing junk has: double-slider drags for lance, single sliding block drags for lance, reversible drags for lance etc., the problem that these instruments exist is to bury at sand to be close to the borehole wall with junk and to depart from situations such as center, just can't effectively salvage, and some tubing junk is not a stock size, therefore there is not supporting fishing tool, and, this junk is not again very common, and success rate is very low, therefore often earlier by sand washing process, separately sand in the well is rushed out just and can be salvaged, as when running into eccentric situation, metal derby of interim welding on fishing tool has so not only destroyed fishing tool, and has wasted the plenty of time often.For this reason, we have succeeded in developing a kind of New Type Sand-Wash reducing and drag for lance and solved the problems referred to above.
The utility model content:
The utility model provides a kind of New Type Sand-Wash reducing to drag for lance and has solved exist in the prior art existing multiple and drag for lance and bury at sand and be close to the borehole wall with junk and depart from situations such as center, just the problem that can't effectively salvage.This drags for lance is to adopt sand washing and salvage in one, accurately introduces in the fish chamber earlier the removing of top of fish sand, and this instrument, successfully will be on the fishing junk.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of New Type Sand-Wash reducing drags for lance and is made up of top connection, anchor body, M8 bolt, cushion block, slide block, block, M6 bolt; Cylindrical top connection and the screwed connection of anchor body, the M8 bolt passes semicircle cushion block and is fixed on the anchor body, and the M6 bolt passes cylindrical block and is fixed on the anchor body, and semicircle reducing slide block slides on the anchor body, and spacing by block.During work: determine spacer thickness realization reducing according to the internal diameter size of irregular tube, then with after the bolt, at the bottom of the sand washing reducing dragged for the lance lower going-into-well, dark in top of fish, carry out sand washing then, the sand on top of fish top dashed be suspended in the pit shaft, dragged for anchor by reducing again and instrument is introduced realized in the junk chamber salvaging.
The beneficial effects of the utility model are:
Simple in structure, sand washing and salvaging in one when realizing sand washing, realizes that by the reducing slide block different-diameter tubulose thing salvages, and the fishing success ratio height reduces the workover treatment cost, improves the production timeliness.
Description of drawings:
Accompanying drawing is the utility model overall structure schematic diagram.
Among the figure 1, top connection, 2, the anchor body, 3, the M8 bolt, 4, cushion block, 5, slide block, 6, block, 7, the M6 bolt.
The specific embodiment:
In the accompanying drawings, a kind of New Type Sand-Wash reducing drags for lance and is made up of top connection 1, anchor body 2, M8 bolt 3, cushion block 4, slide block 5, block 6, M6 bolt 7; Cylindrical top connection 1 and cylindrical anchor body 2 screwed connections, M8 bolt 3 passes semicircle cushion block 4 and is fixed on the anchor body 2, and M6 bolt 7 passes cylindrical block 6 and is fixed on the anchor body 2, and semicircle reducing slide block 5 slides on anchor body 2, and spacing by block 6.
Claims (1)
1, a kind of New Type Sand-Wash reducing drags for lance and is made up of top connection (1), anchor body (2), M8 bolt (3), cushion block (4), slide block (5), block (6), M6 bolt (7), it is characterized in that; Cylindrical top connection (1) and cylindrical anchor body (2) screwed connection, M8 bolt (3) passes semicircle cushion block (4) and is fixed on the anchor body (2), M6 bolt (7) passes cylindrical block (6) and is fixed on the anchor body (2), semicircle reducing slide block (5) is gone up at anchor body (2) and is slided, and spacing by block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200163305U CN201116458Y (en) | 2007-11-30 | 2007-11-30 | Sand flushing reducing fishing spear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200163305U CN201116458Y (en) | 2007-11-30 | 2007-11-30 | Sand flushing reducing fishing spear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201116458Y true CN201116458Y (en) | 2008-09-17 |
Family
ID=39991031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200163305U Expired - Fee Related CN201116458Y (en) | 2007-11-30 | 2007-11-30 | Sand flushing reducing fishing spear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201116458Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141467A (en) * | 2014-07-16 | 2014-11-12 | 山西蓝焰煤层气集团有限责任公司 | Tool special for fishing combination operation on tail pipe in coal-bed gas well and operation process by using tool |
-
2007
- 2007-11-30 CN CNU2007200163305U patent/CN201116458Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141467A (en) * | 2014-07-16 | 2014-11-12 | 山西蓝焰煤层气集团有限责任公司 | Tool special for fishing combination operation on tail pipe in coal-bed gas well and operation process by using 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: 20080917 Termination date: 20101130 |