CN201884005U - Sucker rod string accelerator - Google Patents
Sucker rod string accelerator Download PDFInfo
- Publication number
- CN201884005U CN201884005U CN2010205628832U CN201020562883U CN201884005U CN 201884005 U CN201884005 U CN 201884005U CN 2010205628832 U CN2010205628832 U CN 2010205628832U CN 201020562883 U CN201020562883 U CN 201020562883U CN 201884005 U CN201884005 U CN 201884005U
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- CN
- China
- Prior art keywords
- valve seat
- joint
- bottom connects
- sucker rod
- rod
- 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
The utility model discloses an underground sucker rod string accelerator used for a pumping well, which is especially suitable for oil pumping on deep wells, deviated wells, thickened oil wells and one-side attrition wells. The sucker rod string accelerator is characterized in that the upper part of a working barrel is connected with an upper oil pipe joint; the lower part of the working barrel is connected with a valve seat upper joint; the lower part of the valve seat upper joint is connected with a valve seat; the lower part of the valve seat is connected with a valve seat lower joint; the lower part of the valve seat lower joint is connected with a sealing bore; the lower part of the sealing bore is connected with a lower oil pipe joint; the upper part of a sucker rod pup joint is connected with a sucker rod coupling; the lower part of the sucker rod pup joint is connected with an upper sucker rod joint; the lower part of the upper sucker rod joint is connected with a honeycomb duct; the lower part of the honeycomb duct is connected with a lower sucker rod joint; and a valve ball and a compression spring are arranged in the valve seat. The utility model has the advantages of novel and simple structure, complete and reliable function, convenient construction and the like.
Description
Technical field
The utility model relates to the pumping tool, particularly down-hole rod string accelerator that petroleum industry is used, and when just rod string is descending, provides effective acceleration power; Specifically a kind of pumpingh well that is widely applicable for overcomes the descending frictional resistance of rod string; Shorten oil well pump piston and rod string bottom with oil pumper descending lag time; Make full use of the effective length of stroke, improve pump efficiency.
Background technology
Pumpingh well, especially deep-well, inclined shaft, heavy oil wells and the oil pumping of eccentric wear well, the long-term existence frictional resistance is big, the descending difficulty of roofbolt, effective utilization of length of stroke is being perplexed for a long time with problems such as oil pumper descending lag time are long in oil well pump piston and rod string bottom, has a strong impact on pump efficiency.Before this, once adopted weighted lever to solve, but weighted lever has increased frictional resistance, the roofbolt downstream rate does not obviously increase, and problem is not effectively solved, and therefore seldom uses yet; The scene is not seen rod string accelerator and other square law device as yet at present.This rod string accelerator is exactly at this problem, and my 200820026846.2 Patent equipments of development have been done further improvement.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of employing fluid power feedback technique of finding time, and acceleration power is provided for rod string is descending; Increase and overcome pumpingh well, the especially strength of deep-well, inclined shaft, heavy oil wells and the descending frictional resistance of eccentric wear well rod string; Shorten the oil well pump piston with oil pumper descending lag time; Make full use of the effective length of stroke, improve the rod string accelerator of pump efficiency.
This rod string accelerator, seating nipple top connects goes up oil connection, the bottom connects the valve seat top connection, valve seat top connection bottom connects valve seat, the valve seat bottom connects the valve seat lower contact, and valve seat lower contact bottom connects sealing drum, and the sealing drum bottom connects oil connection down, following oil connection connects the oil well pump seating nipple by tubing nipple, goes into the well with tubing string.Sucker rod substitute top connects rod collar, the bottom connects goes up rod connector, last rod connector bottom connects mozzle, the mozzle bottom connects piston, between piston and the seating nipple, adopt rigid seal, pipe pipe nipple in the piston bottom connects, interior pipe pipe nipple bottom connects sealed tube, also adopt rigid seal between sealed tube and the sealing drum, the sealed tube bottom connects the water conservancy diversion joint, and water conservancy diversion joint bottom connects the lower sucker rod joint, the lower sucker rod joint connects the oil well pump piston by sucker rod substitute, goes into the well with rod string.Valve ball and compression spring are installed in the valve seat, and valve ball adopts 10 millimeters stainless steel standard steel balls, and the compression spring adopts 2 millimeters stainless steel spring steel wire coileds.
It is simple, multiple functional reliable to the utlity model has novel structure, when the inspection pump removes the rod string operation, does not need to rotate roofbolt, directly removes easy construction.
This accelerator does not influence test and technology for washing well, and is when test and well-flushing, the same with rod string accelerator technology is not installed.
Description of drawings
Accompanying drawing is a rod string accelerator sectional structure schematic diagram vertically.
Among the figure: rod collar 1; Sucker rod substitute 2; Last oil connection 3; Last rod connector 4; Mozzle 5; Piston 6; Seating nipple 7; Interior pipe pipe nipple 8; Valve seat top connection 9; Valve ball 10; Compression spring 11; Valve seat 12; Valve seat lower contact 13; Sealing drum 14; Sealed tube 15; Following oil connection 16; Water conservancy diversion joint 17; Lower sucker rod joint 18.
The specific embodiment
This rod string accelerator is when implementing, the top of last oil connection 3 connects oil pipe, the bottom connects seating nipple 7, the bottom of seating nipple 7 connects valve seat top connection 9, and the bottom of valve seat top connection 9 connects valve seat 12, and the bottom of valve seat 12 connects valve seat lower contact 13, the bottom of valve seat lower contact 13 connects sealing drum 14, the bottom of sealing drum 14 connects oil connection 16 down, and following oil connection 16 connects the oil well pump seating nipple by tubing nipple, goes into the well with tubing string.The top of rod collar 1 connects sucker rod, the bottom connects sucker rod substitute 2, the bottom of sucker rod substitute 2 connects goes up rod connector 4, the bottom of last rod connector 4 connects mozzle 5, the bottom of mozzle 5 connects piston 6, pipe pipe nipple 8 in the bottom of piston 6 connects, the bottom of interior pipe pipe nipple 8 connects sealed tube 15, the bottom of sealed tube 15 connects water conservancy diversion joint 17, the bottom of water conservancy diversion joint 17 connects lower sucker rod joint 18, lower sucker rod joint 18 connects the oil well pump piston by sucker rod substitute, goes into the well with rod string.
During upstroke, rod string drives sucker rod substitute 2, upward rod connector 4, mozzle 5, piston 6, interior pipe pipe nipple 8, sealed tube 15, water conservancy diversion joint 17 and the lower sucker rod joint 18 of this accelerator, drives the oil well pump piston stroking upward by sucker rod substitute again.At this moment, the oil well pump standing valve is opened, and liquid enters pump barrel; Travelling valve is closed, and liquid process water conservancy diversion joint 17 enters the inside fluid course of this accelerator, enters the top oil pipe through mozzle 5 again, is promoted to ground.Along with the lifting of rod string, the piston 6 of this accelerator also promotes gradually, thereby forms the increasing space of finding time in piston 6 bottoms, and bigger acceleration power is provided for rod string is descending.
During down stroke, under the fluid power feedback effect of finding time and under the roofbolt action of gravity, this accelerator piston 6 and oil well pump piston are descending with rod string rapidly.At this moment, the oil well pump travelling valve is opened, and standing valve is closed, and liquid enters the inner fluid course of this accelerator by the oil well pump seating nipple through water conservancy diversion joint 17, enters the top oil pipe through mozzle 5 again, successively circulation.At this moment, in the seating nipple 7 if any lost fluid, descending rapidly with piston 6, ball-and-seat is opened, lost fluid can be discharged, the fluid power feedback effect has fully guaranteed to find time.
Claims (4)
1. this rod string accelerator, it is characterized in that seating nipple (7) top connects upward oil connection (3), the bottom connects valve seat top connection (9), valve seat top connection (9) bottom connects valve seat (12), valve seat (12) bottom connects valve seat lower contact (13), valve seat lower contact (13) bottom connects sealing drum (14), and sealing drum (14) bottom connects oil connection (16) down; Sucker rod substitute (2) top connects rod collar (1), the bottom connects goes up rod connector (4), last rod connector (4) bottom connects mozzle (5), mozzle (5) bottom connects piston (6), pipe pipe nipple (8) in piston (6) bottom connects, interior pipe pipe nipple (8) bottom connects sealed tube (15), and sealed tube (15) bottom connects water conservancy diversion joint (17), and water conservancy diversion joint (17) bottom connects lower sucker rod joint (18); Valve ball (10) and compression spring (11) are installed in valve seat (12) lining.
2. rod string accelerator according to claim 1 is characterized in that adopting rigid seal between piston (6) and the seating nipple (7).
3. rod string accelerator according to claim 1 is characterized in that adopting rigid seal between sealed tube (15) and the sealing drum (14).
4. rod string accelerator according to claim 1 is characterized in that valve ball (10) adopts 10 millimeters stainless steel standard steel balls; Compression spring (11) adopts 2 millimeters stainless steel spring steel wire coileds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205628832U CN201884005U (en) | 2010-10-08 | 2010-10-08 | Sucker rod string accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205628832U CN201884005U (en) | 2010-10-08 | 2010-10-08 | Sucker rod string accelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884005U true CN201884005U (en) | 2011-06-29 |
Family
ID=44181545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205628832U Expired - Fee Related CN201884005U (en) | 2010-10-08 | 2010-10-08 | Sucker rod string accelerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277071A (en) * | 2013-06-25 | 2013-09-04 | 大庆北油工程技术服务有限公司 | Hydraulic feedback device of oil pump |
-
2010
- 2010-10-08 CN CN2010205628832U patent/CN201884005U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277071A (en) * | 2013-06-25 | 2013-09-04 | 大庆北油工程技术服务有限公司 | Hydraulic feedback device of oil pump |
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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: 20110629 Termination date: 20131008 |