CN203939679U - Fluid power oil extraction pump in a kind of - Google Patents
Fluid power oil extraction pump in a kind of Download PDFInfo
- Publication number
- CN203939679U CN203939679U CN201420393568.XU CN201420393568U CN203939679U CN 203939679 U CN203939679 U CN 203939679U CN 201420393568 U CN201420393568 U CN 201420393568U CN 203939679 U CN203939679 U CN 203939679U
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- China
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- piston
- sub
- quiet
- pump barrel
- fluid power
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- Expired - Fee Related
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Abstract
In a kind of, fluid power oil extraction pump is oil extraction in oil field lift device, it has overcome complex structure in current technology, shortcoming that cost is high, its structural relation is, upper oil pipe box is arranged at pump barrel top, sub-piston conductor is arranged in pump barrel 3, auxiliary connection piston cylinder under sub-piston conductor, standing valve is positioned at sub-piston cylinder bottom, pump barrel bottom is connecting to play oil pipe box; Quiet piston and the welding of pump barrel annular space, quiet piston top is installed with grafting tube head, and its underpart is provided with fluid power hole, and the bottom of quiet piston is installed with packed-piston; In the middle of moving piston, have piston cavity, and can with quiet piston and packed-piston relative movement, the moving following auxiliary connection piston of piston, sub-piston bottom connects travelling valve.
Description
Technical field: the utility model relates to oil extraction in oil field lift device, especially a kind of interior fluid power oil extraction pump.
Background technique: in oilfield development process, some oil field is because stratum energy declines gradually, just can not make oil well keep blowing to regular period stratum energy, some oil field because prime stratum energy low or oily thick at the very start can not blowing.When oil well can not keep blowing, though or can blowing output when too low, just must recover the oil by mechanical energy.In mechanical oil recovery technology, major part is rod pump, and sucker rod pumping comprises that beam pumping unit well sucker rod pumping and ground driving screw pump recover the oil, and is all, with sucker rod, Surface power drive is passed to underwell pump.Oil rig refers to the oil pumping system being made up of pumping unit, sucker rod and oil well pump.Rod pumping system shortcoming: complex structure, mechanical wounding is large, energy consumption is high, cost is high.
Summary of the invention: the purpose of this utility model is to provide simple in structure, fluid power oil extraction pump in practical one, it has overcome complex structure in current technology, the shortcoming that cost is high, the purpose of this utility model is to realize like this, it is by upper oil pipe box, grafting tube head, pump barrel, quiet piston, moving piston, packed-piston, sub-piston, sub-piston conductor, sub-piston cylinder, travelling valve, standing valve, lower oil pipe box is formed by connecting, upper oil pipe box is arranged at pump barrel top, sub-piston conductor is arranged in pump barrel 3, auxiliary connection piston cylinder under sub-piston conductor, standing valve is positioned at sub-piston cylinder bottom, pump barrel bottom is connecting to play oil pipe box.
Quiet piston and the welding of pump barrel annular space, quiet piston top is installed with grafting tube head, and its underpart is provided with fluid power hole, and the bottom of quiet piston is installed with packed-piston.
In the middle of moving piston, have piston cavity, and can with quiet piston and packed-piston relative movement, moving piston connects sub-piston below, sub-piston bottom connects travelling valve.
Method of work of the present utility model: ground hydraulic system is suppressed, pressure is by hollow tubular inner chamber, act on the moving piston bottom end face of interior Hydraulic pump, hollow tubular internal pressure is greater than on oil pipe and the moving piston of hollow tubular annular pressure moves, drive on sub-piston and move, sub-piston and sub-piston cylinder are abdicated space, and pump standing valve has been opened imbibition; Ground hydraulic system stops suppressing, and emptying hollow tubular chamber pressure, hollow tubular chamber pressure is less than oil pipe and hollow tubular annular pressure, moving piston upper-end surface pressure promotes moving piston and moves down, moving piston driving sub-piston moves down, pump standing valve is closed, and adopts liquid and completes discharge opeing by oil pipe and hollow tubular annular space.The continuous pressurising of ground hydraulic pump bleeds off pressure, and production fluid, through oil pipe and hollow tubular annular space, above moves to well head and is connected with production tree flow line, completes pumping lifting process; Fluid power oil extraction pump can, in the time that impact is produced, be washed by sleeve pipe heat in this, and heat acts on oil-pipe external wall, eliminates the wax deposition of oil pipe and hollow tubular annular space, safeguards that oil well normally produces.
Meaning of the present utility model is: the utility model replaces solid sucker rod with hollow tubular, taking hydraulic pressure as power, makes oil flow channel with oil pipe and hollow tubular annular space.Improved pumping unit and be the mode that power or fluid power change transmission direction and drive deep-well pump work up and down, the two-tube passage of hydraudynamic drive changes single tube transmission into, simplified oil field machine and adopted production technology.Compare and make oil flow channel, oil pipe and hollow tubular annular space with hollow tubular inner chamber and make hydraulic channel, interior fluid power oil extraction pump can carry out oil well heat and wash maintenance, convenient production.
Brief description of the drawings: Fig. 1 is a kind of structural representation of interior fluid power oil extraction pump, in figure 1, upper oil pipe box 2, grafting tube head 3, pump barrel 4, quiet piston 5, moving piston 6, packed-piston 7, sub-piston 8, sub-piston conductor 9, sub-piston cylinder 10, travelling valve 11, standing valve 12, lower oil pipe box 13, fluid power hole
Embodiment: embodiment 1, the utility model are to be formed by connecting by upper oil pipe box 1, grafting tube head 2, pump barrel 3, quiet piston 4, moving piston 5, packed-piston 6, sub-piston 7, sub-piston conductor 8, sub-piston cylinder 9, travelling valve 10, standing valve 11, lower oil pipe box 12, upper oil pipe box 1 is arranged at pump barrel 3 tops, sub-piston conductor 8 is arranged in pump barrel 3,8 times auxiliary connection piston cylinders 9 of sub-piston conductor, standing valve 11 is positioned at sub-piston cylinder 9 bottoms, pump barrel 3 bottoms are connecting to play oil pipe box 12.
Embodiment 2, quiet piston 4 and pump barrel 3 annular space welding, quiet piston 4 tops are installed with grafting tube head 2, and its underpart is provided with fluid power hole 13, and the bottom of quiet piston 4 is installed with packed-piston 6.
In the middle of embodiment 3, moving piston 5, have piston cavity, and can with quiet piston 4 and packed-piston 6 relative movement, the moving following auxiliary connection piston 7 of piston 5, sub-piston 7 bottoms connection travelling valves 10.
Claims (3)
1. fluid power oil extraction pump in a kind, it is by upper oil pipe box (1), grafting tube head (2), pump barrel (3), quiet piston (4), moving piston (5), packed-piston (6), sub-piston (7), sub-piston conductor (8), sub-piston cylinder (9), travelling valve (10), standing valve (11), lower oil pipe box (12) is formed by connecting, it is characterized in that: upper oil pipe box (1) is arranged at pump barrel (3) top, sub-piston conductor (8) is arranged in pump barrel (3), the lower auxiliary connection piston cylinder (9) of sub-piston conductor (8), standing valve (11) is positioned at sub-piston cylinder (9) bottom, pump barrel (3) bottom is connecting to play oil pipe box (12).
2. fluid power oil extraction pump in one according to claim 1, it is characterized in that: quiet piston (4) and the welding of pump barrel (3) annular space, quiet piston (4) top is installed with grafting tube head (2), and its underpart is provided with fluid power hole (13), and the bottom of quiet piston (4) is installed with packed-piston (6).
3. fluid power oil extraction pump in one according to claim 1, is characterized in that: in the middle of moving piston (5), there is piston cavity, and moving piston (5) auxiliary connection piston (7) below, sub-piston (7) bottom connects travelling valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420393568.XU CN203939679U (en) | 2014-07-17 | 2014-07-17 | Fluid power oil extraction pump in a kind of |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420393568.XU CN203939679U (en) | 2014-07-17 | 2014-07-17 | Fluid power oil extraction pump in a kind of |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939679U true CN203939679U (en) | 2014-11-12 |
Family
ID=51858995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420393568.XU Expired - Fee Related CN203939679U (en) | 2014-07-17 | 2014-07-17 | Fluid power oil extraction pump in a kind of |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939679U (en) |
-
2014
- 2014-07-17 CN CN201420393568.XU patent/CN203939679U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20150717 |
|
| EXPY | Termination of patent right or utility model |