CN2753898Y - Moving-drum type air-trapping oil-pump - Google Patents
Moving-drum type air-trapping oil-pump Download PDFInfo
- Publication number
- CN2753898Y CN2753898Y CN 200420058515 CN200420058515U CN2753898Y CN 2753898 Y CN2753898 Y CN 2753898Y CN 200420058515 CN200420058515 CN 200420058515 CN 200420058515 U CN200420058515 U CN 200420058515U CN 2753898 Y CN2753898 Y CN 2753898Y
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- valve
- valve assembly
- joint
- plunger
- pump
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Abstract
The utility model discloses a moving barrel type gas proof oil pump used for mechanical oil production, which is formed by the mutual assembly and connection of a pull rod joint, a connecting hoop I, an outer pipe, a traveling valve assembly, a pump barrel joint, a fixed valve assembly, a plunger piston, a plunger piston joint, a plunger piston extension bar, a pump barrel and a connecting hoop II. The fixed valve assembly is arranged at the top of the plunger piston, the traveling valve assembly which is driven and forced to open and close by an oil pumping is arranged at the upper part of the pump barrel, and the oil pump with the pump barrel moving and the traveling valve forced to open and close is formed. If used in gas containing wells, the utility model can prevent gas locking and enhance pumping efficiency.
Description
Technical field
The utility model relates to the movable barrel type gas-tight oil well pump of a kind of oil field down-hole oil production.
Background technique
Sucker rod pumping is one of main means in the oil field machinery oil.Recover the oil in containing gas well, oil well pump is subjected to gases affect in the pumping process, and pump efficiency can reduce, and the production fluid amount descends.When serious, even gas lock can take place, production fluid not, thus cause the oil well off-time to increase, the maintenance operation workload strengthens.
Summary of the invention
Recover the oil in order to solve in containing gas well, the oil well pump pump efficiency reduces or gas lock takes place, and the invention provides a kind of movable barrel type gas-tight oil well pump.Utilize sucker rod directly to drive oil well pump traveling valve valve rod, force the oil well pump traveling valve to open and close, the structure that adopts pump barrel to move about reduces the distance between standing valve and the traveling valve, avoids that traveling valve is subjected to gases affect and can not in time opens and closes maybe and can not open in the pumping process.
The utility model takes following design proposal to realize: comprise rod head 1, box cupling I2, outer tube 3, traveling valve assembly 4, pump barrel joint 5, standing valve assembly 6, plunger 7, plunger connector 8, plunger extension bar 9, pump barrel 10, box cupling II11, oil pocket 101, box cupling I2, outer tube 3 connects, on the rod head 1 in the outer tube 3 traveling valve assembly 4 is housed, middle part in the outer tube 3 is respectively equipped with pump barrel joint 5, standing valve assembly 6, standing valve assembly 6 places plunger 7 tops, traveling valve assembly 4 places pump barrel 10 tops, plunger 7, plunger connector 8, plunger extension bar 9 connects successively, pump barrel 10 is equipped with in bottom in the urceolus 3, and is connected with box cupling II11.
Traveling valve assembly 4 by pressure cap 41, the spool 42 that moves about, the valve core rod 421 that moves about, the valve ball 422 that moves about, tighten up joint 423, supporting positive cover 43, the valve seat 44 that moves about, traveling valve joint 45 form, move about and the valve core rod 421 that moves about is housed in the spool 42, move about valve ball 422 with tighten up joint 423 and be connected, the valve seat 44 that moves about is housed in the traveling valve joint 45, on the valve seat 44 that moves about supporting positive cover 43 is housed.
Standing valve assembly 6 is made up of standing valve cover 61, fixed valve ball 62, fixed valve base 63, standing valve joint 64, and standing valve cover 61 is housed on the fixed valve ball 62, and fixed valve ball 62 is landed on the fixed valve base 63, and fixed valve base 63 is connected with standing valve joint 64.
Of the present utility modelly be a little: 1, recover the oil in containing gas well, utilize sucker rod directly to drive oil well pump traveling valve valve rod, force the oil well pump traveling valve to open and close, oil pocket includes gas and oil liquid and is compressed when avoiding the down stroke motion; The structure that adopts pump barrel to move about reduces the distance between standing valve and the traveling valve, reduces the oil well pump clearance, prevents gas lock, improves pump efficiency.2, the structure that adopts pump barrel to move about helps preventing sand card oil well pump.3, reduce oil well off-time and maintenance operation workload, reduce production costs.
Description of drawings
Accompanying drawing is a structure diagram of the present utility model.
Embodiment
As shown in drawings, 1 rod head, 2 box cupling I, 3 outer tubes, 4 traveling valve assemblies, 5 pump barrel joints, 6 standing valve assemblies, 7 plungers, 8 plunger connectors, 9 plunger extension bars, 10 pump barrels, 11 box cupling II, 41 pressure caps, 42 spool, 421 valve core rod, 422 valve ball, 423 that moves about that moves about that moves about tightens up joint, 43, supporting positive cover, 44 move about valve seat, 45 traveling valve joints, 61 standing valve covers, 62 fixed valve balls, 63 fixed valve bases, 64 standing valve joints, 101 oil pockets.This movable barrel type gas-tight oil well pump is assembled connection mutually by rod head 1, box cupling I2, outer tube 3, traveling valve assembly 4, pump barrel joint 5, standing valve assembly 6, plunger 7, plunger connector 8, plunger extension bar 9, pump barrel 10, box cupling II11 and is formed.Box cupling I2, outer tube 3, standing valve assembly 4, plunger 7, plunger connector 8, plunger extension bar 9, box cupling II11 upper connection are by being threaded into fixing-assembly.Rod head 1, traveling valve assembly 4, pump barrel joint 5, pump barrel 10 are by being threaded into the motion assembly.Fixing-assembly and motion assembly are by plunger pump barrel sealing pair formation work sap cavity.Standing valve assembly 6 places plunger 7 tops, and traveling valve assembly 4 places pump barrel 10 tops.
Traveling valve assembly 4 is assembled mutually to connect and is formed by pressure cap 41, the spool 42 that moves about, supporting positive cover 43, the valve seat 44 that moves about, traveling valve joint 45.Move about spool 42 by the valve core rod 421 that moves about, the valve ball that moves about (422), tighten up joint 423 mutually assembling connect and form.
Standing valve assembly 6 is assembled mutually to connect and is formed by standing valve cover 61, fixed valve ball 62, fixed valve base 63, standing valve joint 64.
Rod head 1 is the function part that is connected with sucker rod.
Box cupling I2 and box cupling II11 are the function parts that connects with flow string.
Box cupling I2, outer tube 3, standing valve assembly 6, plunger 7, plunger connector 8, plunger extension bar 9, box cupling II11 are by being threaded into fixing-assembly; Rod head 1, traveling valve assembly 4, pump barrel joint 5, pump barrel 10 are by being threaded into the motion assembly.The motion assembly is contained in the fixing-assembly outer tube 3, and the pump barrel 10 of motion assembly is enclosed within outside the plunger 7.Pump barrel 10 is formed plunger, pump barrel sealing pair with plunger 7.
Its working principle is: this movable barrel type gas-tight oil well pump is installed in series to be lowered in the oil well in the flow string bottom, and rod head (1) is connected with the sucker rod that drives oil well pump.When ground pumping unit drive sucker rod was made upper and lower stroke movement, sucker rod drove the motion assembly by the rod head (1) that is attached thereto and makes upper and lower stroke movement.During the upstroke motion, at first the spool that moves about (42) in rod head (1) the drive traveling valve assembly (4) moves upward, move about the valve ball that moves about (422) and valve seat (44) the seat envelope of moving about on the spool (42) are separated fluid in the oil pipe of traveling valve assembly (4) top and the fluid in traveling valve assembly (4) the bottom oil pocket (101); Continue when up, rod head (1) drives the pump barrel (10) that is attached thereto by traveling valve assembly (4), whole motion assembly moves upward, the up discharge opeing of fluid in the oil pipe of lifting traveling valve assembly (4) top, meanwhile, oil pocket (101) volume increases, pressure reduces, and when strata pressure during greater than oil pocket (101), standing valve is opened strike the oil.During the down stroke motion, at first the spool that moves about (42) in rod head (1) the drive traveling valve assembly (4) moves downward, the valve ball that moves about (422) that moves about on the spool (42) leaves with the valve seat (44) that moves about, fluid in the oil pipe of traveling valve assembly (4) top is communicated with fluid in traveling valve assembly (4) the bottom oil pocket (101), under the head of liquid effect in tubing string, standing valve cuts out; Continue when descending, rod head (1) promotes that traveling valve assembly (4) is descending and promote whole motion assembly and move downward, and oil pocket (101) volume reduces, and the fluid in the oil pocket (101) enters in the oil pipe of traveling valve assembly (4) top by traveling valve.The upper and lower stroke movement of cartridge type gas-tight oil well pump is once finished the pumping process one time.
Claims (4)
1, movable barrel type gas-tight oil well pump, comprise rod head (1), box cupling I (2), outer tube (3), traveling valve assembly (4), pump barrel joint (5), standing valve assembly (6), plunger (7), plunger connector (8), plunger extension bar (9), pump barrel (10), box cupling II (11), oil pocket (101), it is characterized in that: box cupling I (2) is connected with outer tube (3), on the rod head (1) in the outer tube (3) traveling valve assembly (4) is housed, middle part in the outer tube (3) is respectively equipped with pump barrel joint (5), standing valve assembly (6), standing valve assembly (6) places plunger (7) top, traveling valve assembly (4) places pump barrel (10) top, plunger (7), plunger connector (8), plunger extension bar (9) connects successively, pump barrel (10) is equipped with in bottom in the urceolus (3), and is connected with box cupling II (11).
2, movable barrel type gas-tight oil well pump according to claim 1, it is characterized in that: traveling valve assembly (4) by pressure cap (41), the spool that moves about (42), the valve core rod that moves about (421), the valve ball that moves about (422), tighten up joint (423), supporting positive cover (43), the valve seat that moves about (44), traveling valve joint (45) and form, move about and the valve core rod that moves about (421) is housed in the spool (42), move about valve ball (422) with tighten up joint (423) and be connected, the valve seat that moves about (44) is housed in the traveling valve joint (45), supporting positive cover (43) is housed on the valve seat that moves about (44).
3, movable barrel type gas-tight oil well pump according to claim 1, it is characterized in that: standing valve assembly (6) is made up of standing valve cover (61), fixed valve ball (62), fixed valve base (63), standing valve joint (64), standing valve cover (61) is housed on the fixed valve ball (62), fixed valve ball (62) is landed on the fixed valve base (63), and fixed valve base (63) is connected with standing valve joint (64).
4, movable barrel type gas-tight oil well pump according to claim 1 is characterized in that: oil pocket (101) is the pressure chamber that forms in pump barrel (10) between the standing valve assembly (6) on the traveling valve assembly (4) on pump barrel (10) top and plunger (7) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420058515 CN2753898Y (en) | 2004-12-09 | 2004-12-09 | Moving-drum type air-trapping oil-pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420058515 CN2753898Y (en) | 2004-12-09 | 2004-12-09 | Moving-drum type air-trapping oil-pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2753898Y true CN2753898Y (en) | 2006-01-25 |
Family
ID=35926007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420058515 Expired - Lifetime CN2753898Y (en) | 2004-12-09 | 2004-12-09 | Moving-drum type air-trapping oil-pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2753898Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653710A (en) * | 2018-11-09 | 2019-04-19 | 大港油田集团有限责任公司 | A kind of hydraulic drive reciprocating pump |
| CN114320859A (en) * | 2022-01-18 | 2022-04-12 | 东北石油大学 | Flexible oil-well pump of valves tracking motion type horizontal well |
-
2004
- 2004-12-09 CN CN 200420058515 patent/CN2753898Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653710A (en) * | 2018-11-09 | 2019-04-19 | 大港油田集团有限责任公司 | A kind of hydraulic drive reciprocating pump |
| CN109653710B (en) * | 2018-11-09 | 2021-11-02 | 大港油田集团有限责任公司 | Hydraulic drive reciprocating pump |
| CN114320859A (en) * | 2022-01-18 | 2022-04-12 | 东北石油大学 | Flexible oil-well pump of valves tracking motion type horizontal well |
| CN114320859B (en) * | 2022-01-18 | 2023-09-01 | 东北石油大学 | Valve group tracking movement type flexible oil pump for horizontal well |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141209 Granted publication date: 20060125 |