CN102817585A - Double-pipe circulating sand bailing device - Google Patents
Double-pipe circulating sand bailing device Download PDFInfo
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- CN102817585A CN102817585A CN2011102925056A CN201110292505A CN102817585A CN 102817585 A CN102817585 A CN 102817585A CN 2011102925056 A CN2011102925056 A CN 2011102925056A CN 201110292505 A CN201110292505 A CN 201110292505A CN 102817585 A CN102817585 A CN 102817585A
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- sand
- pipe
- bailing
- sandpipe
- sand bailing
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Abstract
The invention relates to a sand bailing device, in particular to a double-pipe circulating sand bailing device. The technical scheme includes that the sand bailing device mainly comprises a sand bailing pipe, a sand bailing conical tip and a sand washing pipe, the sand bailing conical tip is arranged at the bottom of the sand bailing pipe, the sand washing pipe is arranged in the sand bailing pipe, and a plurality of liquid drainage holes are arranged on the upper portion of the sand bailing pipe. The double-pipe circulating sand bailing device has the advantages that the sand washing pipe is arranged in the sand bailing pipe, the sand at the bottom can be swashed out, the sand washing is achieved, the oil well production is improved, and the labor intensity of workers is reduced.
Description
Technical field
The present invention relates to a kind of sand-bailing equipment, sand is dragged in particularly a kind of two-tube circulation.
Background technology
In the field produces, owing to long-term exploitation, formation pressure reduce a lot, pressure coefficient eases down to also lower than the equivalent pressure coefficient of water.Use the water flushing sand washing in this case, fluid flow and flow velocity that water entering low pressure layer returns on making in the pit shaft reduce.Coarse sand particles can not effectively be taken ground to.The water that injects when serious can all get into oil reservoirs and can not on return, cause the sand washing failure, cause the contaminated oil well output of oil reservoir to reduce.
Summary of the invention
The object of the invention is exactly the above-mentioned defective that exists to prior art, provides a kind of two-tube circulation to drag for sand, realizes sand washing, improves oil well output, reduces labor strength.
Its technical scheme is: mainly by drag for sandpipe, drag for the abrasive cone point, sand clean out pipe is formed; Dragging for sandpipe bottom is provided with and drags for the abrasive cone point; Described dragging for is provided with sand clean out pipe in the sandpipe, the described sandpipe top of dragging for is provided with a plurality of outages, through the outage that drags on the sandpipe sand setting is taken out of.
The invention has the beneficial effects as follows: be provided with towards the liquid pipe through being employed in to drag in the sandpipe, can realize that the bottom sand setting is rinsed out, realize sand washing, improve oil well output, reduce labor strength.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present invention;
Among the last figure: drag for sandpipe 1, drag for abrasive cone point 2, oil pipe 3, outage 4, sand clean out pipe 5, sand setting 6.
The specific embodiment:
In conjunction with accompanying drawing 1, the present invention is done further description:
The present invention mainly by drag for sandpipe 1, drag for abrasive cone point 2, sand clean out pipe 5 is formed, drags for sandpipe 1 bottom and is provided with that to drag for abrasive cone sharp 2, described dragging for is provided with sand clean out pipe 5 in the sandpipe 1, described sandpipe 1 top of dragging for is provided with a plurality of outages 4.
During use, transfer in the oil pipe 3 and drag for sandpipe 1, start sand-bailing equipment, drag for abrasive cone point 2 and start working, get into oil pipe bottom sand setting 6, the flushing liquor in the sand clean out pipe 5 drives the bottom sand setting and moves upward, and through the outage that drags on the sandpipe sand setting is taken out of.
Claims (1)
1. sand is dragged in a two-tube circulation; It is characterized in that: mainly by drag for sandpipe (1), drag for abrasive cone point (2), sand clean out pipe (5) is formed; Described sandpipe (1) bottom of dragging for is provided with and drags for abrasive cone point (2); Drag for and be provided with sand clean out pipe (5) in the sandpipe (1), described sandpipe (1) top of dragging for is provided with a plurality of outages (4), through the outage (4) that drags on the sandpipe sand setting is taken out of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102925056A CN102817585A (en) | 2011-09-30 | 2011-09-30 | Double-pipe circulating sand bailing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102925056A CN102817585A (en) | 2011-09-30 | 2011-09-30 | Double-pipe circulating sand bailing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102817585A true CN102817585A (en) | 2012-12-12 |
Family
ID=47301986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102925056A Pending CN102817585A (en) | 2011-09-30 | 2011-09-30 | Double-pipe circulating sand bailing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102817585A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2486734Y (en) * | 2001-04-29 | 2002-04-17 | 中国石油天然气股份有限公司 | Double sand holding bucket downhole bailing tub |
| CN2527741Y (en) * | 2001-11-21 | 2002-12-25 | 中国石化胜利油田有限公司胜利采油厂 | Sandpump |
| CN1587634A (en) * | 2004-08-18 | 2005-03-02 | 中国石油天然气集团公司 | Compressed air circulation sand cleaning process and matching device |
| US20060011345A1 (en) * | 2004-07-15 | 2006-01-19 | Delaloye Richard J | Method and apparatus for downhole artificial lift system protection |
| CN201567983U (en) * | 2009-12-09 | 2010-09-01 | 中国石油天然气股份有限公司 | Coal bed gas-well bridge type non-pollution continuous coal ash flushing technological pipe column |
| CN202325412U (en) * | 2011-09-30 | 2012-07-11 | 南通新诚电子有限公司 | Double-barreled circular bailing device |
-
2011
- 2011-09-30 CN CN2011102925056A patent/CN102817585A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2486734Y (en) * | 2001-04-29 | 2002-04-17 | 中国石油天然气股份有限公司 | Double sand holding bucket downhole bailing tub |
| CN2527741Y (en) * | 2001-11-21 | 2002-12-25 | 中国石化胜利油田有限公司胜利采油厂 | Sandpump |
| US20060011345A1 (en) * | 2004-07-15 | 2006-01-19 | Delaloye Richard J | Method and apparatus for downhole artificial lift system protection |
| CN1587634A (en) * | 2004-08-18 | 2005-03-02 | 中国石油天然气集团公司 | Compressed air circulation sand cleaning process and matching device |
| CN201567983U (en) * | 2009-12-09 | 2010-09-01 | 中国石油天然气股份有限公司 | Coal bed gas-well bridge type non-pollution continuous coal ash flushing technological pipe column |
| CN202325412U (en) * | 2011-09-30 | 2012-07-11 | 南通新诚电子有限公司 | Double-barreled circular bailing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121212 |