CN2725573Y - Hydraulic driven rodless pump device - Google Patents
Hydraulic driven rodless pump device Download PDFInfo
- Publication number
- CN2725573Y CN2725573Y CN 200420092185 CN200420092185U CN2725573Y CN 2725573 Y CN2725573 Y CN 2725573Y CN 200420092185 CN200420092185 CN 200420092185 CN 200420092185 U CN200420092185 U CN 200420092185U CN 2725573 Y CN2725573 Y CN 2725573Y
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- CN
- China
- Prior art keywords
- oil
- rodless pump
- rodless
- oil pipe
- hydraulic
- 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 relates to a hydraulic driven rodless pump oil pumping device used for the mechanical oil extraction in the oil field. The hydraulic driven rodless pump device mainly comprises a ground part and an underground part. The ground part comprises a hydraulic power supply(1), a controlling valve group (2), etc., while the underground part comprises an oil pipe(3), a packer(5), a rodless pump(6), etc. Making use of the surface fluid force to drive the underground rodless pumping(6) to realize rodless oil production practice, can put an end to the mechanical wear between the pumping rod and the oil pipe thoroughly and prolong the no-repair period of the oil well. The hydraulic self-balancing function of the hydraulic driven rodless pump device can reduce the driving power efficiently and is especially suitable for the exploitation of the crude oil with high viscosity, high coagulating point, high gas bearing and high sand content. Besides, the utility model is especially suitable for the oil extraction in the directional well and cluster type well on land and in the sea.
Description
Technical field: the utility model relates to the fluid power driving rodless pump pumping unit that a kind of oil field machinery oil is used.
Background technique: present oil field widespread usage conventional beam-pumping unit, sucker-rod pumping equipment.In oil recovery process,, often occur that sucker rod rubs, oil pipe mill leakage accident because of having mechanical wear between sucker rod and the oil pipe.Cause oil well to stop production, increase cost for oil production.Situation at directed oil well, clump formula oil well is just even more serious, though adopted technical measures such as beam hanger centralizer, rotation well head, wear-resisting rod tube to reduce wear, the mining site operational effect is not good.
Summary of the invention: in order to overcome the deficiency of conventional beam-pumping unit, sucker-rod pumping equipment.The utility model provides a kind of fluid power without pumping unit, sucker rod to drive the rodless pump device.Utilize ground fluid power to drive the down-hole rodless pump and realize no sucker rod oil production operation, can thoroughly stop the mechanical wear between sucker rod and the oil pipe.Packet has been installed on down-hole string, has been made the annular space between oil pipe inner chamber, oil pipe and the sleeve pipe constitute the U-shaped balance tube, made power fluid and output liquid can form the fluid power self balancing through rodless pump.
The technological scheme that its technical problem that solves the utility model adopts: fluid power drives the rodless pump device and mainly is made up of ground and down-hole two-part.Above ground portion comprises: hydraulic power supply, control valve group etc.Wherein hydraulic power supply provides required high voltage power liquid for fluid power drives the rodless pump device, and the control valve group can require to adjust the pressure and the flow of power fluid according to the oil well pumping, changes the stroke and the jig frequency of rodless pump.The down-hole part comprises: oil pipe, packet, rodless pump etc.Oil pipe, packet, rodless pump connect into flow string and drop in the sleeve pipe.Annular space between oil pipe inner chamber, oil pipe and the sleeve pipe has constituted output liquid and power fluid runner.The packet that is installed on the down-hole string makes the annular space of high voltage power liquid between oil pipe and sleeve pipe enter rodless pump, drives the work of oil pumping plunger by the plunger that surges, and makes output liquid be given rise to ground through rodless pump.It is characterized in that: utilizing ground fluid power to drive the down-hole rodless pump does not have the bar swabbing operation.
The beneficial effects of the utility model: fluid power driving rodless pump device has thoroughly been stopped the wearing and tearing between bar, the pipe, has prolonged being excused from a college course the cycle of oil well.The fluid power self balancing function that fluid power drives the rodless pump device can reduce driving power effectively.The stroke of rodless pump and jig frequency can be controlled on ground.Possess novel structure, characteristics such as easy and simple to handle.Be specially adapted to the exploitation of high viscosity, high-solidification point, high gassiness and high sand containing crude oil, be specially adapted to the directional well of land and ocean, the oil recovery of cluster well simultaneously.
Description of drawings: Fig. 1 drives rodless pump apparatus structure schematic representation for the utility model fluid power.
Among the figure: 1. hydraulic power supply, 2. control valve group, 3. oil pipe, 4. sleeve pipe, 5. packet, 6. rodless pump, the plunger that 7. surges, 8. oil pumping plunger.
Specific implementation method: in the embodiment shown in fig. 1, the working principle that fluid power drives the rodless pump device is: hydraulic power supply (1) produces power fluid, and process control valve group (2) enters the annular space between oil pipe (3) and the sleeve pipe (4).Packet (5) makes power fluid enter rodless pump (6).Up by the plunger that surges (7) pulling oil pumping plunger (8), output liquid is given rise to ground through oil pipe (3).When oil pumping plunger (8) arrived upper dead center, the variation in pressure of power fluid fed back to ground control valve group (2), and the power fluid that stops rodless pump (6) is supplied with.Fluid column is under the effect of gravity in oil pipe (3) for rodless pump (6), and it is descending to make the plunger that surges (7) promote oil pumping plunger (8) beginning.When oil pumping plunger (8) arrived lower dead centre, the pressure feedback of power fluid had changed the flow direction of power fluid once more to ground control valve group (2).Get back to the up state of oil pumping plunger (8) again.Whole work cycle constantly repeats, and makes fluid power drive the work of pumping normally of rodless pump device.
Claims (2)
1, a kind of fluid power driving rodless pump device is made up of hydraulic power supply (1), control valve group (2), oil pipe (3), packet (5), rodless pump (6) etc., it is characterized in that: packet (5) has been installed on down-hole string, make the annular space between oil pipe (3) inner chamber, oil pipe (3) and the sleeve pipe (4) constitute the U-shaped balance tube, make power fluid and output liquid can form the fluid power self balancing through rodless pump (6).
2, the fluid power that will state according to claim 1 drives the rodless pump device, it is characterized in that: the packet (5) that is installed on the down-hole string makes the annular space of high voltage power liquid between oil pipe (3) and sleeve pipe (4) enter rodless pump, drive the work of oil pumping plunger by the plunger that surges, make output liquid be given rise to ground through rodless pump.Utilize ground fluid power to drive down-hole rodless pump (6) and do not have the bar swabbing operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092185 CN2725573Y (en) | 2004-09-02 | 2004-09-02 | Hydraulic driven rodless pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092185 CN2725573Y (en) | 2004-09-02 | 2004-09-02 | Hydraulic driven rodless pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2725573Y true CN2725573Y (en) | 2005-09-14 |
Family
ID=35040292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420092185 Expired - Fee Related CN2725573Y (en) | 2004-09-02 | 2004-09-02 | Hydraulic driven rodless pump device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2725573Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216028B (en) * | 2007-12-27 | 2010-10-06 | 国营第三八八厂 | Hydraulic power oil pump |
| CN107630685A (en) * | 2017-09-20 | 2018-01-26 | 中国石油天然气股份有限公司 | Rodless oil production pipe column and method for oil pumping motor-pumped well |
| CN109403927A (en) * | 2018-11-21 | 2019-03-01 | 大连华科机械有限公司 | Hydraulic oil producing device with temperature adjustment function |
-
2004
- 2004-09-02 CN CN 200420092185 patent/CN2725573Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216028B (en) * | 2007-12-27 | 2010-10-06 | 国营第三八八厂 | Hydraulic power oil pump |
| CN107630685A (en) * | 2017-09-20 | 2018-01-26 | 中国石油天然气股份有限公司 | Rodless oil production pipe column and method for oil pumping motor-pumped well |
| CN109403927A (en) * | 2018-11-21 | 2019-03-01 | 大连华科机械有限公司 | Hydraulic oil producing device with temperature adjustment function |
| CN109403927B (en) * | 2018-11-21 | 2020-11-03 | 大连华科机械有限公司 | Hydraulic oil production device with temperature adjusting function |
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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 |