CN2329757Y - Hollow oil pump non-oil pipe oil extraction tubular column - Google Patents
Hollow oil pump non-oil pipe oil extraction tubular column Download PDFInfo
- Publication number
- CN2329757Y CN2329757Y CN 98202782 CN98202782U CN2329757Y CN 2329757 Y CN2329757 Y CN 2329757Y CN 98202782 CN98202782 CN 98202782 CN 98202782 U CN98202782 U CN 98202782U CN 2329757 Y CN2329757 Y CN 2329757Y
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- CN
- China
- Prior art keywords
- piston
- oil
- valve
- hollow
- pump barrel
- 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 a hollow oil extraction tubular column without an oil tube for an oil pump, being composed of an upper valve 6, an upper valve seat 7, an upper stop collar 8 for a plunger, the plunger 9, a lower valve 12, a slip 19, a pin 20, etc. The upper valve 6 and the upper valve seat 7 are arranged below a pump barrel 4, and the lower part of a center pole 10 is provided with the valve 12. An annular sectional area is bigger, and friction and resistance for crude oil can be smaller, so that a hollow oil pump can work normally; a channel which is formed from a hollow sucker rod and the central cluster of a hollow anchoring packer of the hollow oil pump can be taken as a channel for flushing well, feeding explosive and testing.
Description
The utility model relates to a kind of hollow oil well pump non-tubing oil extraction tubing string in oil exploitation well pumping technology field.
Present non-tubing oil extraction technology is to adopt hollow rod, insert pump (the valve cover adopts sealed on the piston) anchor is formed tubing string (roofbolt), to after sleeve pipe gives allocation, will be anchored on the sleeve pipe under this tubing string, pump just can operate as normal like this, oil is walked from the hollow rod endoporus, annular space can well-flushing, dosing, form the circulating system with hollow rod, this tubing string configuration, though can accomplish non-tubing oil extraction, but the following shortcoming that is difficult to overcome is arranged: 1. the hollow rod endoporus is less, generally have only 24 millimeters of diameters, minimum diameter has only 22 millimeters, and crude oil inside passes through, and its frictional resistance is very big, make pump down stroke speed slower, meeting and oil pumper generation asynchrony phenomenon; 2. adopt anchor that pump is fixed on the sleeve pipe,, can't carry out annulus logging though fluid can pass through.
The purpose of this utility model is to provide a kind of annular space section long-pending bigger, and the frictional resistance that crude oil is subjected to is less, makes hollow oil well pump be able to a kind of hollow oil well pump non-tubing oil extraction tubing string of operate as normal.
The utility model is achieved in that by plunger 1, sand cap 2, last valve spacing ring 3, pump barrel 4, pipe nipple 5, last valve 6, last valve seat 7, piston upper limit ring 8, piston 9, center-pole 10, following valve seat 11, following valve 12, pump barrel 13, joint 14, separator rubber 15, piston cylinder 16, O type circle 17, piston 18, slips 19, pin 20, blanking plug seat 21, splicing sleeve 22 is formed, pipe nipple 5 ends are equipped with sand cap 2, last valve spacing ring 3 is fixed on pipe nipple 5 tops, pump barrel 4 and plunger 1 socket, pump barrel 4 bottoms are connected with valve 6, last valve 6 is put on the valve seat 7, last valve seat 7 is fixed on the pipe nipple 5, pipe nipple 5 bottoms connect pump barrel 13, piston upper limit ring 8 is arranged at pump barrel 13 tops, interior cover piston 9, following valve seat 11 is arranged at piston 9 bottoms, plunger 1 bottom links to each other with center-pole 10, center-pole 10 bottoms are connected with down valve 12, joint 14 links to each other with pump barrel 13 bottoms, splicing sleeve 22 is arranged in the joint 14, piston 18 is between piston cylinder 16 and splicing sleeve 22, slips 19 is in piston 18 times, pin 20 is arranged on the blanking plug seat 21, separator rubber 15 is on piston cylinder 16 tops, and is enclosed within on the splicing sleeve 22.
Advantage of the present utility model is that the annular space section is long-pending bigger, and the frictional resistance that crude oil is subjected to is less, sucker rod thrust on the liquid body not during hollow oil well pump work, only be subjected to the gravity pull of bar, improved the sucker rod duty, can prevent that sucker rod from the fracture of neutral point place, can carry out annulus logging.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is described further:
The utility model is achieved in that by plunger 1, sand cap 2, last valve spacing ring 3, pump barrel 4, pipe nipple 5, last valve 6, last valve seat 7, piston upper limit ring 8, piston 9, center-pole 10, following valve seat 11, following valve 12, pump barrel 13, joint 14, separator rubber 15, piston cylinder 16, O type circle 17, piston 18, slips 19, pin 20, blanking plug seat 21, splicing sleeve 22 is formed, pipe nipple 5 ends are equipped with sand cap 2, last valve spacing ring 3 is fixed on pipe nipple 5 tops, pump barrel 4 and plunger 1 socket, pump barrel 4 bottoms are connected with valve 6, last valve 6 is put on the valve seat 7, last valve seat 7 is fixed on the pipe nipple 5, pipe nipple 5 bottoms connect pump barrel 13, piston upper limit ring 8 is arranged at pump letter 13 tops, interior cover piston 9, following valve seat 11 is arranged at piston 9 bottoms, plunger 1 bottom links to each other with center-pole 10, center-pole 10 bottoms are connected with down valve 12, joint 14 links to each other with pump barrel 13 bottoms, splicing sleeve 22 is arranged in the joint 14, piston 18 is between piston cylinder 16 and splicing sleeve 22, slips 19 is in piston 18 times, pin 20 is arranged on the blanking plug seat 21, separator rubber 15 is on piston cylinder 16 tops, and is enclosed within on the splicing sleeve 22.
The hollow oil well pump that the utility model adopts is that standing valve is in the pump upper end, travelling valve is in the standing valve lower end, and sucker rod thrust on the liquid body not when making hollow oil well pump work only is subjected to the gravity pull of bar, improved the sucker rod duty, avoided so-called " neutral point " occurring at sucker rod.Can prevent sucker rod in the fracture of neutral point place, it is that sand setting makes and puies forward the pump difficulty to pump and shell clearance when preventing the small casing oil pumping that the purpose of anti-pump cover is adopted on hollow oil well pump top, and anti-simultaneously pump cover also can seal.
The used tubing string of the utility model is made up of hollow rod, hollow oil well pump, hollow anchor packer, this tubing string is given allocation to sleeve pipe down, with anchor packer grappling, sealing, oil passes through from the annular space of hollow rod and sleeve pipe formation, hollow rod, the hollow anchoring packer of a hollow oil well pump center bunch formed passage can be used as well-flushing, the passage of dosing, test.
Claims (1)
1. hollow oil well pump non-tubing oil extraction tubing string that is used for oil exploitation well pumping technology field, by plunger (1), sand cap (2), last valve spacing ring (3), pump barrel (4), pipe nipple (5), last valve (6), last valve seat (7), piston upper limit ring (8), piston (9), center-pole (10), following valve seat (11), following valve (12), pump barrel (13), joint (14), separator rubber (15), piston cylinder (16), O type circle (17), piston (18), slips (19), pin (20), blanking plug seat (21), splicing sleeve (22) is formed, it is characterized in that: pipe nipple (5) end is equipped with sand cap (2), last valve spacing ring (3) is fixed on pipe nipple (5) top, pump barrel (4) and plunger (1) socket, pump barrel (4) bottom is connected with valve (6), last valve (6) is put on the valve seat (7), last valve seat (7) is fixed on the pipe nipple (5), pipe nipple (5) bottom connects pump barrel (13), piston upper limit ring (8) is arranged at pump barrel (13) top, interior cover piston (9), following valve seat (11) is arranged at piston (9) bottom, plunger (1) bottom links to each other with center-pole (10), center-pole (10) bottom is connected with down valve (12), joint (14) links to each other with pump barrel (13) bottom, splicing sleeve (22) is arranged in the joint (14), piston (18) is between piston cylinder (16) and splicing sleeve (22), slips (19) is under piston (18), pin (20) is arranged on the blanking plug seat (21), separator rubber (15) is on piston cylinder (16) top, and is enclosed within on the splicing sleeve (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98202782 CN2329757Y (en) | 1998-04-01 | 1998-04-01 | Hollow oil pump non-oil pipe oil extraction tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98202782 CN2329757Y (en) | 1998-04-01 | 1998-04-01 | Hollow oil pump non-oil pipe oil extraction tubular column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2329757Y true CN2329757Y (en) | 1999-07-21 |
Family
ID=33959765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98202782 Expired - Fee Related CN2329757Y (en) | 1998-04-01 | 1998-04-01 | Hollow oil pump non-oil pipe oil extraction tubular column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2329757Y (en) |
-
1998
- 1998-04-01 CN CN 98202782 patent/CN2329757Y/en not_active Expired - Fee Related
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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 |