CN2641270Y - Annulus logging, low flow pressure oil pumping well pressure control type well flushing device - Google Patents
Annulus logging, low flow pressure oil pumping well pressure control type well flushing device Download PDFInfo
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- CN2641270Y CN2641270Y CN 03260492 CN03260492U CN2641270Y CN 2641270 Y CN2641270 Y CN 2641270Y CN 03260492 CN03260492 CN 03260492 CN 03260492 U CN03260492 U CN 03260492U CN 2641270 Y CN2641270 Y CN 2641270Y
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Abstract
The utility model relates to a controlled flushing implement which is capable of annulus logging the pressure of the oil extractor with the flow pressure, belonging to a control type instrument of the underground oil extraction, in particular to a flushing implement. The superior end of the central tube(3) is fixedly connected inside an upper joint(1), and the inferior end is fixedly connected inside the lever-knife of an inferior joint(12); the casing of the shrinking sleeve(2) is embedded outside the center tube which is arranged in the inferior end of the upper joint; an upper rubber pot seat(4) is fixed between the inferior end of the shrinking sleeve(2) and a rubber pot(5); a supporting sleeve(7) is fixed between the rubber pot and the inferior joint; a helical spring(8) is embedded between the supporting sleeve and the centre tube; a piston(10) is embedded inside the inferior joint; a piston(11) is embedded in the air cavity between the inferior end of a slide bushing(10); and the inferior joint as well as the centre tube. The utility model is applicable for the low current pressure well, capable of effectively preventing the flushing water from infusing into the stratum, reducing the drain of the flushing hot water and the energy dissipation, and protecting the stratum, in particular to that after flushing, the well is capable of immediately resuming the regular production, improving the output of the crude oil, and not affecting the normative testing work of the pumping unit with an oversize hole.
Description
Technical field: the utility model belongs to the control class instrument under the producing well, is specifically related to well-washing device.
Background technology: in the oilfield exploitation stage a lot of low flow pressure wells are arranged, this well well-flushing water when well-flushing easily pours into the stratum, and its consequence is that well-flushing hot water is run off in a large number, causes energy waste, and has injured the stratum.Especially the oil well behind the well-flushing needs the time about a week just can return to the preceding production status of well-flushing, has influenced crude output.In addition, the rod-pumped well with decentralized wellhead can not be tested with common well-washing device.
The utility model content: the purpose of this utility model is that well-flushing water pours in down a chimney oil reservoir when solving low flow pressure rod-pumped well well-flushing, influence the problem that oil well production and decentralized wellhead rod-pumped well can not be tested, but and design a kind of annulus logging low flow pressure rod-pumped well pressure control type well-washing device.The utility model comprises top connection 1, center-pole 3, lower contact 12, last glue tube base 4, rubber tube 5, packing element pressure ring 6, splicing sleeve 7, it also comprises telescopic shell 2, helical spring 8, spring base 9, sliding sleeve 10, piston 11, the upper end of central tube 3 is fixed on the inboard of top connection 1 bottom, telescopic shell 2 is fixed on the outside of the central tube 3 of top connection 1 lower end, last glue tube base 4 is set between the outside of inboard, flexible shell 2 lower ends and central tube 3, rubber tube 5 is set in the outside of the central tube 3 of glue tube base 4 lower ends, packing element pressure ring 6 is fixed on the outside of the central tube 3 of rubber tube 5 lower ends, splicing sleeve 7 is fixed on the outside of packing element pressure ring 6 lower end central tubes 3, helical spring 8 is set in the cavity between central tube 3 outsides and the splicing sleeve 7, spring base 9 is fixed on the outside of the central tube 3 of splicing sleeve 7 lower ends, sleeve base 13 is fixed on the outside of the central tube 3 of spring base 9 lower ends, sliding sleeve 10 is fixed on the outside of sleeve base 13, the upper end of lower contact 12 is fixed in the outside of spring base 9 lower end sliding sleeves 10, the lower end of the lower end of lower contact 12 and central tube 3 is affixed, and piston 11 is set in the air chamber that the lower end of sliding sleeve 10 and central tube 3 and lower contact 12 surround.The top of this well-washing device is connected with the screen casing of oil well pump bottom, the bottom of well-washing device connects tail pipe, inject flushing fluid by the oil jacket annular space during well-flushing, piston 11 is moving upward under the action of pressure between well-flushing fluid pressure and the air chamber, and promotion sliding sleeve 10 moves upward, sliding sleeve 10 promotes spring base 9 compression helical springs 8, drive splicing sleeve 7 up compressing rubber tubes 5 simultaneously, rubber tube 5 lateral expansions and then oil sets annular space packing up and down, flushing fluid enters oil pipe by screen casing whole tubing string is cleaned.When flushing fluid pressure changed in washing well process, the telescoping tube on well-washing device top can be adjusted the life-span of having improved the well-washing device rubber tube effectively automatically.After well-flushing finished, sliding sleeve 10 moved downward under the effect of rubber tube 5 and helical spring 8 restoring forces, promoted piston 11 returns, and oil sets annular space was opened the production of can normally pumping about rubber tube 5 shrank and makes.Because the external diameter of this well-washing device only is 90mm, so it does not influence the annulus logging work of the rod-pumped well with decentralized wellhead again.The utility model is suitable for the low flow pressure well; it can prevent effectively that well-flushing water from pouring into the stratum; the loss of well-flushing hot water and the waste of the energy have been reduced; also protected the stratum; especially just can return to normal production behind the well-flushing at once; improved crude oil yield, but also do not influenced normal test operation with decentralized wellhead oil pumper.
Description of drawings: Fig. 1 is the utility model overall structure schematic diagram.
The specific embodiment one: present embodiment is by top connection 1, center-pole 3, lower contact 12, last glue tube base 4, rubber tube 5, packing element pressure ring 6, splicing sleeve 7, telescopic shell 2, helical spring 8, spring base 9, sliding sleeve 10, piston 11 is formed, the upper end of central tube 3 is fixed on the inboard of top connection 1 bottom, telescopic shell 2 is fixed on the outside of the central tube 3 of top connection 1 lower end, last glue tube base 4 is set between the outside of inboard, flexible shell 2 lower ends and central tube 3, rubber tube 5 is set in the outside of the central tube 3 of glue tube base 4 lower ends, packing element pressure ring 6 is fixed on the outside of the central tube 3 of rubber tube 5 lower ends, splicing sleeve 7 is fixed on the outside of packing element pressure ring 6 lower end central tubes 3, helical spring 8 is set in the cavity between central tube 3 outsides and the splicing sleeve 7, spring base 9 is fixed on the outside of the central tube 3 of splicing sleeve 7 lower ends, sleeve base 13 is fixed on the outside of the central tube 3 of spring base 9 lower ends, sliding sleeve 10 is fixed on the outside of sleeve base 13, the upper end of lower contact 12 is fixed in the outside of spring base 9 lower end sliding sleeves 10, the lower end of the lower end of lower contact 12 and central tube 3 is affixed, and piston 11 is set in the air chamber that the lower end of sliding sleeve 10 and central tube 3 and lower contact 12 surround.
The specific embodiment two: the difference of present embodiment and embodiment one is, studs with O RunddichtringO 15 between the upper end of lower contact 12 and piston 10 upper ends, studs with O RunddichtringO 16 around sleeve base 13 lower ends.Other composition is identical with embodiment one with annexation.
Claims (2)
1, but annulus logging low flow pressure rod-pumped well pressure control type well-washing device, it comprises top connection (1), center-pole (3), lower contact (12), last glue tube base (4), rubber tube (5), packing element pressure ring (6), splicing sleeve (7), it is characterized in that it also comprises telescopic shell (2), helical spring (8), spring base (9), sliding sleeve (10), piston (11), the upper end of central tube (3) is fixed on the inboard of top connection (1) bottom, telescopic shell (2) is fixed on the outside of the central tube (3) of top connection (1) lower end, last glue tube base (4) is set between the outside of inboard, flexible shell (2) lower end and central tube (3), rubber tube (5) is set in the outside of the central tube (3) of glue tube base (4) lower end, packing element pressure ring (6) is fixed on the outside of the central tube (3) of rubber tube (5) lower end, splicing sleeve (7) is fixed on the outside of packing element pressure ring (6) lower end central tube (3), helical spring (8) is set in the cavity between central tube (3) outside and the splicing sleeve (7), spring base (9) is fixed on the outside of the central tube (3) of splicing sleeve (7) lower end, sleeve base (13) is fixed on the outside of the central tube (3) of spring base (9) lower end, sliding sleeve (10) is fixed on the outside of sleeve base (13), the upper end of lower contact (12) is fixed in the outside of spring base (9) lower end sliding sleeve (10), the lower end of the lower end of lower contact (12) and central tube (3) is affixed, and piston (11) is set in the air chamber that the lower end of sliding sleeve (10) and central tube (3) and lower contact (12) surround.
But 2, annulus logging low flow pressure rod-pumped well pressure control type well-washing device according to claim 1, it is characterized in that between the upper end of lower contact (12) and piston (10) upper end, studding with O RunddichtringO (15), around sleeve base (13) lower end, stud with O RunddichtringO (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03260492 CN2641270Y (en) | 2003-09-04 | 2003-09-04 | Annulus logging, low flow pressure oil pumping well pressure control type well flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03260492 CN2641270Y (en) | 2003-09-04 | 2003-09-04 | Annulus logging, low flow pressure oil pumping well pressure control type well flushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2641270Y true CN2641270Y (en) | 2004-09-15 |
Family
ID=34296475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03260492 Expired - Fee Related CN2641270Y (en) | 2003-09-04 | 2003-09-04 | Annulus logging, low flow pressure oil pumping well pressure control type well flushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2641270Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389539A (en) * | 2014-11-28 | 2015-03-04 | 东营市福利德石油科技开发有限责任公司 | Deep sea oil well one or two direction well washing conversion tool |
-
2003
- 2003-09-04 CN CN 03260492 patent/CN2641270Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389539A (en) * | 2014-11-28 | 2015-03-04 | 东营市福利德石油科技开发有限责任公司 | Deep sea oil well one or two direction well washing conversion tool |
| CN104389539B (en) * | 2014-11-28 | 2017-04-26 | 东营市福利德石油科技开发有限责任公司 | Deep sea oil well one or two direction well washing conversion 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: 20040915 Termination date: 20120904 |