CN203867839U - Hydraulic balance oil extracting pump - Google Patents
Hydraulic balance oil extracting pump Download PDFInfo
- Publication number
- CN203867839U CN203867839U CN201420309145.5U CN201420309145U CN203867839U CN 203867839 U CN203867839 U CN 203867839U CN 201420309145 U CN201420309145 U CN 201420309145U CN 203867839 U CN203867839 U CN 203867839U
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- Expired - Fee Related
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Abstract
The utility model relates to an oil-extracting lifting technology, and provides a hydraulic balance oil extracting pump which overcomes the defects that in the prior art, the structure is complex and cost is high. The hydraulic balance oil extracting pump is formed by connecting an upper oil pipe female buckle, a pluggable pipe head, a pump cylinder, a main piston cylinder, a main piston, a sealing chamber, a sub piston, a piston guide body, a sub piston cylinder, a traveling valve, a fixed valve and a lower oil pipe female buckle. The upper oil pipe female buckle is arranged on the upper portion of the pump cylinder, the piston guide body is arranged in the pump cylinder, the lower edge of the piston guide body is connected with the sub piston cylinder, the fixed valve is located at the bottom of the sub piston cylinder, and the lower oil pipe female buckle is arranged on the lower portion of the pump cylinder. The pluggable pipe head is arranged on the upper portion of the main piston cylinder, the main piston is arranged in the main piston cylinder, and the lower portion of the main piston cylinder is connected with the sealing chamber. The lower portion of the main piston cylinder is connected with the sub piston, and the lower portion of the sub piston is connected with the traveling valve.
Description
Technical field: the utility model relates to oil recovery Lifting Technique, especially a kind of hydraulic resistance balance oil extraction pump.
Background technique: in oilfield exploitation, main application machine energy transmission is recovered the oil.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 a kind of hydraulic resistance balance oil extraction pump simple in structure, it has overcome complex structure in current technology, shortcoming that cost is high.The purpose of this utility model is to realize like this, it is to be formed by connecting by upper oil pipe box, grafting tube head, pump barrel, main piston cylinder, main piston, sealing drum, sub-piston, piston conductor, sub-piston cylinder, travelling valve, standing valve, lower oil pipe box, upper oil pipe box is arranged at pump barrel top, piston conductor is arranged in pump barrel, the following auxiliary connection piston cylinder of piston conductor, standing valve is positioned at sub-piston cylinder bottom, and lower oil pipe box is arranged at pump barrel bottom; Main piston cylinder top is installed with grafting tube head, and there is main piston its inside, and the bottom of main piston cylinder is connecting sealing drum; Main piston cylinder bottom auxiliary connection piston, sub-piston bottom connects travelling valve.
Method of work of the present utility model: ground hydraulic system is suppressed, pressure is by oil pipe and hollow tubular annular space, act on the main piston bottom end of hydraulic resistance balance pump, annular pressure is greater than on hollow tubular internal pressure main piston and moves, drive on sub-piston and move, the annular space that sub-piston and pump barrel are abdicated, pump standing valve has been opened imbibition; Ground hydraulic system stops suppressing, and emptying oil pipe and hollow tubular annular pressure, in hollow tubular, presses and is greater than oil pipe and hollow tubular annular pressure, and main piston upper-end surface pressure promotes main piston and moves down, and main piston drives sub-piston to move down, and pump standing valve has been closed discharge opeing.The continuous pressurising of ground hydraulic pump bleeds off pressure, and production fluid, through hollow tubular inner chamber, above moves to well head and is connected with production tree flow line, completes pumping lifting process.
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 or 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.
Brief description of the drawings: Fig. 1 is a kind of structural representation of hydraulic resistance balance oil extraction pump, in figure 1, upper oil pipe box 2, grafting tube head 3, pump barrel 4, main piston cylinder 5, main piston 6, sealing drum 7, sub-piston 8, piston conductor 9, sub-piston cylinder 10, travelling valve 11, standing valve 12, lower oil pipe box.
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, main piston cylinder 4, main piston 5, sealing drum 6, sub-piston 7, 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, piston conductor 8 is arranged in pump barrel 3, the following auxiliary connection piston cylinder 9 of piston conductor 8, standing valve 11 is positioned at sub-piston cylinder 9 bottoms, and lower oil pipe box 12 is arranged at pump barrel 3 bottoms.
Embodiment 2, main piston cylinder 4 tops are installed with grafting tube head 2, and there is main piston 5 its inside, and the bottom of main piston cylinder 4 is connecting sealing drum 6.
Embodiment 3, main piston cylinder 4 bottom auxiliary connection pistons 7, sub-piston 7 bottoms connect travelling valve 10.
Claims (3)
1. a hydraulic resistance balance oil extraction pump, it is by upper oil pipe box (1), grafting tube head (2), pump barrel (3), main piston cylinder (4), main piston (5), sealing drum (6), sub-piston (7), 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, piston conductor (8) is arranged in pump barrel (3), piston conductor (8) is auxiliary connection piston cylinder (9) below, standing valve (11) is positioned at sub-piston cylinder (9) bottom, lower oil pipe box (12) is arranged at pump barrel (3) bottom.
2. a kind of hydraulic resistance balance oil extraction pump according to claim 1, is characterized in that: main piston cylinder (4) top is installed with grafting tube head (2), and there is main piston (5) its inside, and the bottom of main piston cylinder (4) is connecting sealing drum (6).
3. a kind of hydraulic resistance balance oil extraction pump according to claim 1, is characterized in that: main piston cylinder (4) bottom auxiliary connection piston (7), sub-piston (7) bottom connects travelling valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309145.5U CN203867839U (en) | 2014-06-12 | 2014-06-12 | Hydraulic balance oil extracting pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309145.5U CN203867839U (en) | 2014-06-12 | 2014-06-12 | Hydraulic balance oil extracting pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867839U true CN203867839U (en) | 2014-10-08 |
Family
ID=51648800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420309145.5U Expired - Fee Related CN203867839U (en) | 2014-06-12 | 2014-06-12 | Hydraulic balance oil extracting pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867839U (en) |
-
2014
- 2014-06-12 CN CN201420309145.5U patent/CN203867839U/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: 20141008 Termination date: 20150612 |
|
| EXPY | Termination of patent right or utility model |