CN2458437Y - Soft sealed sand preventing pipe type oil-well pump - Google Patents
Soft sealed sand preventing pipe type oil-well pump Download PDFInfo
- Publication number
- CN2458437Y CN2458437Y CN 00268800 CN00268800U CN2458437Y CN 2458437 Y CN2458437 Y CN 2458437Y CN 00268800 CN00268800 CN 00268800 CN 00268800 U CN00268800 U CN 00268800U CN 2458437 Y CN2458437 Y CN 2458437Y
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Abstract
The utility model relates to a soft sealing sand preventing pipe type oil-well pump, which is composed of an upper joint 1, a short section 2, an upper hollow piston 3, leather cups 4, a leather cup seat 5, a piston seat 6, a piston 7, a supporting sleeve 8, a lower hollow piston 9, a valve cover 10, a valve ball 11, a piston ring 12, a central tube 13, a ball seat 14 and a lower joint 15. Since the utility model is provided with an interference soft seal piston and the leather cups of both ends of the soft sealing piston to cause the pump to have sand scraping and sand preventing functions in the reciprocating motion, the utility model prevents form generating the condition that the pump is blocked and dropped. The utility model improves the production efficiency. The utility model has the advantages of reasonable structure and low cost, is easy to manufacture, and is suitable for popularizing and applying on site.
Description
The utility model relates to the downhole tool that uses on a kind of oilfield, particularly a kind of soft seal sand control tubing pump.
Oil well pump is the down-hole special device that recovers the oil, and oil well pump is installed in the bottom of tubing string during following pump operation, is submerged in the liquid level, does upper and lower to-and-fro motion by driving plunger, the crude oil of suction oil well.Because the oily stream in the oil well contains sand, wax, gas, water and corrosive material etc., sand grains in the oil enters in the gap between pump barrel and the plunger, and plunger pumps and just makes pump barrel and plunger produce the sand grains wearing and tearing, has reduced pump efficiency, pump is easy to damage, and has influenced the oil well ordinary production.
The purpose of this utility model is to provide a kind of soft seal sand control tubing pump, and it has overcome sand production holddown problem, has improved pump efficiency.
The purpose of this utility model is to realize like this, it is by upper connection (1), pipe nipple (2), last box type piston (3), leather cup (4), leather cup seat (5), piston seat (6), piston (7), supporting sleeve (8), following box type piston (9), valve cover (10), valve ball (11), piston ring (12), center tube (13), ball seat (14), lower contact (15) is formed, upper connection has through hole on (1), one end and pipe nipple (2), last box type piston (3) connects successively, center tube (13) one ends are connected on the box type piston (3), the other end is connected with following box type piston (9), on the center tube (13), the bottom is with paired leather cup (4), leather cup seat (5), there is pressure transmission hole the centre and piston seat (6) is housed, piston (7), supporting sleeve (8), valve cover (10) upper end is connected with following box type piston (9), the lower end is connected with lower contact (15), lower contact (15) upper end card has ball seat (14), be valve ball (11) on the ball seat (14), piston ring (12) is enclosed within on box type piston (3) and the following box type piston (9).
When pump work, piston stroking upward, the piston 7 that is subjected to expand in the head of liquid effect expands and sealing automatically, and the leather cup at its piston two ends is strike-off along with piston plays, the effect of sand control.
The utility model is owing to adopted the leather cup at interference soft seal piston and its two ends, pump is played strike-off in to-and-fro motion, the effect of sand control, prevented that holddown and the situation of falling pump from taking place, improved manufacturing efficiency, its project organization is reasonable, easy processing, cost reduces, and is well suited for field popularization application.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further specified.
As shown in the figure, it comprises upper connection 1, pipe nipple 2, upward box type piston 3, leather cup 4, leather cup seat 5, piston seat 6, piston 7, supporting sleeve 8, following box type piston 9, valve cover 10, valve ball 11, piston ring 12, center tube 13, ball seat 14, lower contact 15 are formed, leather cup 4, piston 7 all adopt tetrafluoro rubber to make, piston 7 is upper and lower all two pairs of leather cups, on upper connection 1, the center tube 13 pressure transmission hole is arranged, its purpose makes piston reach the purpose that diameter swells.Upper connection 1 and last box type piston, valve cover 10 and lower contact 15 with being threaded and pushing down expansion piston.Change technological methodes such as carburizing that traditional pump barrel adopts, carbonitriding, chromium plating, laser, adopt the general technology hardening and tempering method, thereby reach the purpose that reduces cost.
Claims (2)
1, a kind of soft seal sand control tubing pump, it is by upper connection (1), pipe nipple (2), last box type piston (3), leather cup (4), leather cup seat (5), piston seat (6), piston (7), supporting sleeve (8), following box type piston (9), valve cover (10), valve ball (11), piston ring (12), center tube (13), ball seat (14), lower contact (15) is formed, it is characterized in that: upper connection has through hole on (1), one end and pipe nipple (2), last box type piston (3) connects successively, center tube (13) one ends are connected on the box type piston (3), the other end is connected with following box type piston (9), on the center tube (13), the bottom is with paired leather cup (4), leather cup seat (5), there is pressure transmission hole the centre and piston seat (6) is housed, piston (7), supporting sleeve (8), valve cover (10) upper end is connected with following box type piston (9), the lower end is connected with lower contact (15), lower contact (15) upper end card has ball seat (14), be valve ball (11) on the ball seat (14), piston ring (12) is enclosed within on box type piston (3) and the following box type piston (9).
2, soft seal sand control tubing pump according to claim 1 is characterized in that: leather cup (4), piston (7) all adopt tetrafluoro rubber to make, and piston (7) is upper and lower all two pairs of leather cups (4), and upper connection (1), center tube have pressure transmission hole on (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00268800 CN2458437Y (en) | 2000-12-29 | 2000-12-29 | Soft sealed sand preventing pipe type oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00268800 CN2458437Y (en) | 2000-12-29 | 2000-12-29 | Soft sealed sand preventing pipe type oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2458437Y true CN2458437Y (en) | 2001-11-07 |
Family
ID=33622301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00268800 Expired - Fee Related CN2458437Y (en) | 2000-12-29 | 2000-12-29 | Soft sealed sand preventing pipe type oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2458437Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206494A (en) * | 2018-02-28 | 2019-09-06 | 中国石油天然气股份有限公司 | Process pipe column matched with cable type oil pumping unit |
-
2000
- 2000-12-29 CN CN 00268800 patent/CN2458437Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206494A (en) * | 2018-02-28 | 2019-09-06 | 中国石油天然气股份有限公司 | Process pipe column matched with cable type oil pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |