CN109915349A - Oil rig and designing technique in a kind of novel well - Google Patents
Oil rig and designing technique in a kind of novel well Download PDFInfo
- Publication number
- CN109915349A CN109915349A CN201711313263.8A CN201711313263A CN109915349A CN 109915349 A CN109915349 A CN 109915349A CN 201711313263 A CN201711313263 A CN 201711313263A CN 109915349 A CN109915349 A CN 109915349A
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- well
- pump
- oil
- check valve
- pump chamber
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Abstract
The present invention relates to oil rig and designing techniques in a kind of novel well, change the oil well pump of down-hole pump tube inner chamber volume with hydraulic power, especially suitable for the use under inclined shaft, horizontal well, the lesser environment of " S " well and wellhead ground spatial position, belong to oil recovery technique field.It is by pump barrel, connecting tube of surging, upper check valve, transfiguration piston, lower check valve, pump chamber composition.It is the method for changing transfiguration piston volume using high frequency, and the high frequency of Lai Shixian pump chamber internal volume changes, to change the pressure in pump chamber, achievees the purpose that extract downhole crude out well head.The present invention has occupied area small, and oil pumping mode is unique, is applicable in the advantages that well shape is wide.
Description
Technical field
The present invention relates to oil rig and designing techniques in a kind of novel well, change down-hole pump tube inner chamber with hydraulic power and hold
Long-pending oil well pump, especially suitable for the use under inclined shaft, horizontal well, the lesser environment of " S " well and wellhead ground spatial position,
Belong to oil recovery technique field.
Figure viewed from behind technology
Well known oil pumping mode generally uses sucker rod to drive oil well pump oil pumping, not only needs a large amount of wellhead installation, but also take out
On the one hand the reciprocating motion of beam hanger makes the component being in contact with it generate biggish abrasion because of friction, on the other hand in inclined shaft, water
It is even more that can not be applicable under horizontal well, the lesser environment of " S " well and wellhead ground spatial position.Simultaneously because underground adverse circumstances cause
The oil well pump service life is extremely short.A kind of product moment formula oil well pump for being adapted to no sucker rod and underground adverse circumstances thus is designed, is solution
The certainly key of the above problem.It had not only extended oil well pump service life, but also solved because of inclined shaft, horizontal well, " S " well and land
Concentrate during well spacing that adjacent well head space is small, neritic area is filled out sea and concentrated and utilizes the discomfort of sucker rod oil pumping under the occasions such as drilling
The problem of answering.
Summary of the invention
The purpose of the present invention is to provide oil rig and designing techniques in a kind of novel well, are changed by pump chamber variation
Become the downhole pumping installation of intracavitary oil pressure, it realizes no bar oil pumping, and greatly extends the service life of oil well pump.
To achieve the goals above, the technical scheme is that oil rig and designing technique in a kind of novel well, it
By pump barrel, connecting tube of surging, upper check valve, transfiguration piston, lower check valve, pump chamber composition.It is characterized in that transfiguration piston is interior
Chamber one end is equipped with connecting tube of surging；The shell of the transfiguration piston is telescopic material；The transfiguration piston volume is
Variable.Lower bottom part is respectively equipped with check valve, lower check valve on the pump chamber.
The present invention has occupied area small, and oil pumping mode is unique, is applicable in the advantages that well shape is wide.
Detailed description of the invention
Attached drawing 1 is schematic cross-sectional view of the present invention
In attached drawing, 1. surge connecting tube, and 2. pump housings connect upper screw thread, check valve, 4. pump chambers on 3., 5. transfiguration pistons, 6. pumps
Cylinder, 7. lower check valves, 8. pump housings connect lower screw thread.
Specific embodiment
In the present invention, connecting tube of surging 1 is connected with 5 inner cavity of transfiguration piston, under ground hydraulic systemic effect, connection of surging
Pipe 1 is internally provided with hydraulic increase in transfiguration piston 5 (while being pressed into transfiguration piston 5 under power liquid (such as hydraulic oil)
Elastic steel sheet be stretched), since transfiguration piston 5 is that telescopic material is made (inflatable), the volume of transfiguration piston 5
Become larger, thus pressure acts on the pump chamber 4 for expanding and compressing down pump barrel 1 to transfiguration piston 5 inside it, the pressure in pump chamber 4 increases
Volume becomes smaller, and lower check valve 7 is closed, and the crude oil in pump chamber 4 is admitted to oil pipe by the discharge of upper check valve 3.When connection of surging
Pipe 1 is under ground hydraulic systemic effect, and when transfiguration piston 5 is sucked out in power liquid, transfiguration piston 5 is in inner cavity negative pressure and internal bullet
Property steel disc contraction elasticity under the action of shrink, volume becomes smaller, and moment negative pressure is formed in pump chamber 4, and upper check valve 3 closes, is lower unidirectional
Valve 7 is opened, and downhole crude is drawn into pump chamber 4 from lower check valve 7.The effect for passing through ground hydraulic-control system in this way, realizes transfiguration
The high-frequency expansion and contraction of piston 5, so that ground continuously is discharged through oil pipe from underground in crude oil.
In the present invention, pump barrel 1 connects upper screw thread 2 by the pump housing and the pump housing connects lower screw thread 8 and connect with box cupling.
Claims (2)
1. oil rig and designing technique in a kind of novel well, it is by pump barrel, connecting tube of surging, upper check valve, transfiguration piston, under
Check valve, pump chamber are constituted, it is characterised in that inner cavity one end of variable displacement piston type is equipped with connecting tube of surging；The transfiguration piston
Outer housing is telescopic material, and the transfiguration piston volume is variable.
2. oil rig and designing technique in a kind of novel well according to claim 1, it is characterised in that the pump chamber
Upper lower bottom part is respectively equipped with check valve, lower check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711313263.8A CN109915349A (en) | 2017-12-12 | 2017-12-12 | Oil rig and designing technique in a kind of novel well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711313263.8A CN109915349A (en) | 2017-12-12 | 2017-12-12 | Oil rig and designing technique in a kind of novel well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109915349A true CN109915349A (en) | 2019-06-21 |
Family
ID=66957239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711313263.8A Pending CN109915349A (en) | 2017-12-12 | 2017-12-12 | Oil rig and designing technique in a kind of novel well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109915349A (en) |
-
2017
- 2017-12-12 CN CN201711313263.8A patent/CN109915349A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190621 |
|
| WD01 | Invention patent application deemed withdrawn after publication |