CN108150139B - Downhole oil pipe dredging tool - Google Patents
Downhole oil pipe dredging tool Download PDFInfo
- Publication number
- CN108150139B CN108150139B CN201611107427.7A CN201611107427A CN108150139B CN 108150139 B CN108150139 B CN 108150139B CN 201611107427 A CN201611107427 A CN 201611107427A CN 108150139 B CN108150139 B CN 108150139B
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- China
- Prior art keywords
- mandrel
- scraping head
- tool
- pin
- head
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- 238000007790 scraping Methods 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
- E21B37/04—Scrapers specially adapted therefor operated by fluid pressure, e.g. free-piston scrapers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/005—Fishing for or freeing objects in boreholes or wells using vibrating or oscillating means
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Marine Sciences & Fisheries (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a downhole oil pipe dredging tool, and belongs to the technical field of oil exploitation. The underground oil pipe through pipe tool comprises a variable buckle joint, a weighting rod, a limiting cap, a mandrel and a scraping head, wherein a cavity is arranged in the scraping head, the lower portion of the variable buckle joint is connected with the upper portion of the weighting rod, the lower portion of the weighting rod is connected with the upper portion of the mandrel, the limiting cap is sleeved on the outer wall of the mandrel, the lower portion of the limiting cap is connected with the upper portion of the scraping head, the mandrel is suitable for being inserted into the cavity of the scraping head, the mandrel and the scraping head can rotate relative to each other and axially displace, thick oil gathered in a pipe column can be sheared by shocking and rotating through repeated lifting and releasing of the tool, smoothness of the pipe column is achieved.
Description
Technical Field
The invention belongs to the technical field of oil exploitation, and particularly relates to an underground oil pipe dredging tool.
Background
At present, most oil fields in China enter the middle and later stages of development, and water injection exploitation is widely applied to all the oil fields as an economic and effective exploitation method. Layered water injection is an important mode of water injection exploitation, tools such as a throwing and fishing device and a measuring and regulating instrument need to be put into a well to test and regulate the water injection amount of each layer in the water injection process, and for the existing thick oil block, the tools are slowly put into the well or cannot be put into the well due to scaling and thick oil condensation in an oil pipe, so that the measuring and regulating efficiency of layered water injection is influenced to a great extent.
The prior art is to solving the scaling and viscous crude condensation in the oil pipe and can lead to the fact that the instrument is gone into slowly or can't go into the way of problem of going into slowly to connect the dead weight pole increase instrument on the instrument.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
in actual working production, the weight of the weighting rod is uncertain, and when the weighting rod is selected to be lighter, the weighting rod cannot help the measuring and adjusting tool to be put down; when selecting the weight bar when heavier, then can lead to measure and adjust instrument length overlength, increase the well head operation degree of difficulty, the increase of simultaneously measuring and adjusting instrument weight can make measure and adjust instrument pulling force increase, and the steel wire or the cable of connecting measure and adjust the instrument are easily broken, have the operation risk.
Disclosure of Invention
The invention provides a downhole oil pipe through pipe tool, aiming at solving the problems that the measuring and adjusting tool is slow to run in and cannot run in.
Specifically, the downhole tubing through pipe tool is as follows:
a downhole oil pipe dredging tool comprises a buckle changing connector, a weighting rod, a limiting cap, a mandrel and a scraping head;
a cavity is arranged inside the scraping head;
the lower part of the buckle changing joint is connected with the upper part of the weighting rod, and the lower part of the weighting rod is connected with the upper part of the mandrel;
the limiting cap is sleeved on the outer wall of the mandrel, the lower portion of the limiting cap is connected with the upper portion of the scraping head, the mandrel is suitable for being inserted into a cavity of the scraping head, and the mandrel and the scraping head can rotate relatively and move axially.
Further, the tool also comprises a steel wire rope cap, and the lower part of the steel wire rope cap is connected with the upper part of the buckle adapter.
Furthermore, the tool further comprises a first pin, the first pin penetrates through the buckle changing connector, one end of the first pin is exposed out of the outer wall of the buckle changing connector, and the other end of the first pin is connected with the weighting rod.
Further, the tool further comprises a second pin, the second pin penetrates through the weighting rod, one end of the second pin is exposed out of the outer wall of the weighting rod, and the other end of the second pin is connected with the mandrel.
Furthermore, the tool further comprises a third pin, the third pin penetrates through the scraping head, one end of the third pin is exposed out of the outer wall of the scraping head, and the other end of the third pin is connected with the limiting cap.
Further, the lower part of the limiting cap is connected with the upper part of the scraping head through threads.
Furthermore, the outer wall of the scraping head is provided with spiral scraping sheets.
Further, the lower part of the scraping head is conical.
Further, the outer wall of the lower part of the mandrel is provided with a protrusion, and the protrusion cannot pass through the limiting cap.
The technical scheme provided by the embodiment of the invention has the beneficial effects that:
the invention relates to a downhole oil pipe through pipe tool, which comprises a buckle changing joint, a weighting rod, a limiting cap, a mandrel and a scraping head, wherein a cavity is arranged in the scraping head, the mandrel is suitable for being inserted into the cavity of the scraping head, the mandrel and the scraping head can rotate relatively and axially displace, the effect of shocking and rotating to shear thick oil accumulated in a pipe column can be realized through repeatedly lifting and releasing the tool, the smoothness of the pipe column is realized, the structure is simple, the occurrence rate of faults in the blockage removing process is reduced, and when the tool is blocked in the lifting process, the tool can be lifted out of a well through a method of backwashing the well and repeatedly lifting the tool, so that the risk of falling of the tool into the well is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a downhole tubing through-tubing tool;
fig. 2 is a schematic view of the external structure of the shaving head.
The reference numerals in the drawings denote:
1. a wire rope cap; 2. a buckle changing joint; 3. a weight bar; 4. a limiting cap; 5. a mandrel;
6. scraping the head; 7. a first pin; 8. a second pin; 9. a third pin; 10. a steel wire.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the following will describe embodiments of the present invention in further detail with reference to the accompanying drawings.
The embodiment of the invention provides a downhole oil pipe through pipe tool, which comprises a buckle changing connector 2, a weighting rod 3, a limiting cap 4, a mandrel 5 and a scraping head 6, as shown in figure 1.
Specifically, the inside of scraping head 6 is provided with the cavity, and the lower part of change lock joint 2 links to each other with the upper portion of weighting pole 3, and the lower part of weighting pole 3 links to each other with the upper portion of dabber 5, and spacing cap 4 cover is established on the outer wall of dabber 5, and the lower part of spacing cap 4 links to each other with the upper portion of scraping head 6, and dabber 5 is suitable for inserting in the cavity of scraping head 6, but dabber 5 and scraping head 6 relative rotation and axial displacement.
Therefore, the scraping head 6 is internally provided with the cavity, the mandrel 5 is suitable for being inserted into the cavity of the scraping head 6, the mandrel 5 and the scraping head 6 can rotate relatively and axially displace, the thick oil accumulated in the pipe column can be sheared by shocking and rotating through repeatedly lifting and releasing tools, and the smoothness of the pipe column is realized.
As a further improvement to the embodiment, the downhole tubing through pipe tool further comprises a steel wire rope cap 1, wherein the lower part of the steel wire rope cap 1 is connected with the upper part of the buckle change connector 2 through threads; the downhole oil pipe through pipe tool further comprises a first pin 7, wherein the first pin 7 penetrates through the buckle change connector 2, one end of the first pin is exposed out of the outer wall of the buckle change connector 2, and the other end of the first pin is connected with the weighting rod 3 and used for connecting and fixing the buckle change connector 2 and the weighting rod 3; the downhole oil pipe dredging tool further comprises a second pin 8, wherein the second pin 8 penetrates through the weighting rod 3, one end of the second pin is leaked out of the outer wall of the weighting rod 3, and the other end of the second pin is connected with the mandrel 5 and used for connecting and fixing the weighting rod 3 and the mandrel 5; this oil pipe siphunculus instrument in pit still includes third pin 9, and third pin 9 passes scraping head 6, and one end spills outside the outer wall of scraping head 6, and the other end links to each other with spacing cap 4, and simultaneously, threaded connection is passed through with the upper portion of scraping head 6 in the lower part of spacing cap 4 for connect fixed scraping head 6 and spacing cap 4.
Meanwhile, as shown in fig. 2, the lower part of the scraping head 6 is conical, so that the scraping head 6 can be conveniently put into the pipe column, and the outer wall of the scraping head 6 is provided with a spiral scraping sheet for driving the scraping head 6 to rotate under the action of water and oil flow in the shaft, so as to scrape thick oil in the pipe column; the lower outer wall of the mandrel 5 is provided with a protrusion, which is not specifically shown in fig. 1, and the protrusion cannot pass through the limiting cap 4, so as to limit the movement range of the mandrel 5 in the scraping head 6.
In the in-service use process, connect wire rope cap 1 through steel wire 10 and go into the tubular column of dividing in the pit with this instrument, utilize the dead weight effect of instrument, make scraping head 6 insert viscous crude and block up the well section, effect to scraping head 6 through water and oil stream in the tubular column, scraping head 6 produces rotatoryly, make spiral scraping piece scrape the pipe wall, and simultaneously, scraping head 6 and dabber 5 relative rotation and axial displacement, when scraping head 6 meets and hinders, dabber 5 and weight bar 3 continue down the jarring and scrape head 6, in the instrument in-process of lifting repeatedly, jar and the viscous crude of rotatory shearing gathering in the broken tubular column through the instrument, realize the unblock purpose.
The invention relates to a downhole oil pipe through pipe tool, which comprises a buckle changing joint, a weighting rod, a limiting cap, a mandrel and a scraping head, wherein a cavity is arranged in the scraping head, the mandrel is suitable for being inserted into the cavity of the scraping head, and the mandrel and the scraping head can rotate relatively and move axially; on the other hand, the scraping head is rotated by the acting force of water and oil flow in the shaft on the scraping head, so that thick oil in the pipe column is scraped.
The above description is only for facilitating the understanding of the technical solutions of the present invention by those skilled in the art, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The downhole oil pipe dredging tool is characterized by comprising a buckle changing joint, a weighting rod, a limiting cap, a mandrel and a scraping head;
a cavity is arranged inside the scraping head, and spiral scraping sheets are distributed on the outer wall of the scraping head;
the lower part of the buckle changing joint is connected with the upper part of the weighting rod, and the lower part of the weighting rod is connected with the upper part of the mandrel;
the limiting cap is sleeved on the outer wall of the mandrel, the lower part of the limiting cap is connected with the upper part of the scraping head, the mandrel is suitable for being inserted into a cavity of the scraping head, and the mandrel and the scraping head can rotate relatively and move axially;
the outer wall of the lower portion of the mandrel is provided with a protrusion, the protrusion cannot pass through the limiting cap, and the protrusion is configured to limit the movement range of the mandrel in the scraping head.
2. The tool of claim 1, further comprising a wire rope cap, a lower portion of the wire rope cap being connected to an upper portion of the buckle sub.
3. The tool of claim 1, further comprising a first pin extending through the adapter, one end of the first pin being exposed through an outer wall of the adapter, and the other end of the first pin being connected to the weight bar.
4. The tool of claim 1, further comprising a second pin extending through the weight bar, one end of the second pin extending out of an outer wall of the weight bar, and the other end of the second pin being connected to the mandrel.
5. The tool of claim 1, further comprising a third pin extending through said shaving head, one end of said third pin extending beyond an outer wall of said shaving head, and the other end of said third pin being connected to said stop cap.
6. The tool of claim 1, wherein a lower portion of the retaining cap is threadably connected to an upper portion of the shaving head.
7. The tool of claim 1, wherein a lower portion of the shaving head is conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611107427.7A CN108150139B (en) | 2016-12-06 | 2016-12-06 | Downhole oil pipe dredging tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611107427.7A CN108150139B (en) | 2016-12-06 | 2016-12-06 | Downhole oil pipe dredging tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108150139A CN108150139A (en) | 2018-06-12 |
| CN108150139B true CN108150139B (en) | 2020-07-10 |
Family
ID=62469689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611107427.7A Active CN108150139B (en) | 2016-12-06 | 2016-12-06 | Downhole oil pipe dredging tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150139B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379540B (en) * | 2018-12-29 | 2021-11-30 | 中国石油天然气股份有限公司 | Mechanical pipe-dredging tool for oil-water well |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2635909Y (en) * | 2003-08-28 | 2004-08-25 | 大庆油田有限责任公司 | Rotary impact type mechanical wax scraper |
| CN201212378Y (en) * | 2008-04-25 | 2009-03-25 | 北京华油油气技术开发有限公司 | Combination paraffin removal tool |
| CN202970578U (en) * | 2012-12-10 | 2013-06-05 | 辽宁跨克石油装备有限公司 | Jarring accelerator used for salvage jam-release |
| CN205078239U (en) * | 2015-09-08 | 2016-03-09 | 中国石油化工股份有限公司 | Oil pipe scraper in pit |
| CN205743803U (en) * | 2016-07-06 | 2016-11-30 | 荆州市赛瑞能源技术有限公司 | A kind of blanking plug reclaims fishing tool |
| CN205743840U (en) * | 2016-05-16 | 2016-11-30 | 中国石油天然气股份有限公司 | Electric control scaler suitable for oil field water injection well and descaling tubular column thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8826986B2 (en) * | 2007-10-03 | 2014-09-09 | M-I L.L.C. | Downhole scraper |
-
2016
- 2016-12-06 CN CN201611107427.7A patent/CN108150139B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2635909Y (en) * | 2003-08-28 | 2004-08-25 | 大庆油田有限责任公司 | Rotary impact type mechanical wax scraper |
| CN201212378Y (en) * | 2008-04-25 | 2009-03-25 | 北京华油油气技术开发有限公司 | Combination paraffin removal tool |
| CN202970578U (en) * | 2012-12-10 | 2013-06-05 | 辽宁跨克石油装备有限公司 | Jarring accelerator used for salvage jam-release |
| CN205078239U (en) * | 2015-09-08 | 2016-03-09 | 中国石油化工股份有限公司 | Oil pipe scraper in pit |
| CN205743840U (en) * | 2016-05-16 | 2016-11-30 | 中国石油天然气股份有限公司 | Electric control scaler suitable for oil field water injection well and descaling tubular column thereof |
| CN205743803U (en) * | 2016-07-06 | 2016-11-30 | 荆州市赛瑞能源技术有限公司 | A kind of blanking plug reclaims fishing tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108150139A (en) | 2018-06-12 |
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