CN2704701Y - Oil-well pump for extracting oil - Google Patents
Oil-well pump for extracting oil Download PDFInfo
- Publication number
- CN2704701Y CN2704701Y CN 200420041753 CN200420041753U CN2704701Y CN 2704701 Y CN2704701 Y CN 2704701Y CN 200420041753 CN200420041753 CN 200420041753 CN 200420041753 U CN200420041753 U CN 200420041753U CN 2704701 Y CN2704701 Y CN 2704701Y
- Authority
- CN
- China
- Prior art keywords
- assembly
- long
- plunger
- sand
- oil
- 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 provides an oil-well pump for extracting oil, comprising a desilting extension tube and a fix assembly which are fixed on the lower end of the pump barrel assembly. A long-column plunger is sheathed in the pump barrel assembly and the desilting extension tube; a long-column plunger sand-proof assembly which can autorotate and a draw rod are respectively arranged in the long-column plunger; the lower end of the long-column plunger sand-proof assembly is provided with an alloy valve seat; the lower end of the draw rod is also provided with an alloy taper sleeve cooperated with the alloy valve seat; the upper end of the long-column plunger is also provided with an upper delivery valve centering joint closely fitted with the draw rod; a valve seat having a through hole is arranged in the fix assembly; a ball valve cooperated with the valve seat is connected into integration with the fix assembly via a return spring; the oil-well pump for extracting oil is sealed by adopting the alloy taper sleeve, which solves the increased leakage due to the closing, the lagging and the bias falling of the valve ball when working; the lower end of the fix assembly is provided with a filter sand extension tube assembly having a wire mesh for blocking the large grained sand grain in the liquid entering into the pump barrel; the structure of the short pump barrel of the long-column plunger prevents the sand being blocked and the long-column plunger being eccentrically grinded due to the fact that the cross component force is generated due to the gravitational effect.
Description
Technical field
The utility model relates to a kind of oil well pump, recovers the oil and use oil well pump in particularly a kind of oil field.
Background technique
At present, most of oil well pump that use in the oil field is common oil well pump, if run into the oil well that contains sand, inclined shaft, plunger eccentric wear, high oil-gas ratio, common oil well pump is with regard to cisco unity malfunction, so can only adopt some Special subsurface pump finishes the work, but existing Special subsurface pump also can only solve a certain problem in the oil well pointedly, but because the complexity of geological condition, often various situations can run into simultaneously, if want to exist simultaneously in the oil well these several situations, existing Special Pump is difficult to guarantee the oil well proper functioning.
Summary of the invention
The purpose of this utility model is to provide a kind of oil field oil recovery oil well pump that enough solves the oil field with simultaneous sand card, inclined shaft, plunger eccentric wear, gas lock problem in a bite oil well.
For achieving the above object, the technical solution adopted in the utility model is: comprise pump barrel assembly and long-plunger, be characterized in, the lower end of pump barrel assembly is provided with sand setting extension pipe and fixation assembly, long-plunger is sleeved in pump barrel assembly and the sand setting extension pipe, but in long-plunger, also be disposed with the long-plunger sand control assembly and the pull bar of rotation, lower end at long-plunger sand control assembly is provided with the alloy valve seat, the lower end of pull bar also is provided with the alloy tapered sleeve that matches with the alloy valve seat, the upper end of long-plunger also is provided with and the friction tight fuel-displaced joint of setting upright of pull bar, be provided with the valve seat of a band through hole in the fixation assembly, the ball valve that matches with valve seat is connected as a single entity by Returnning spring and fixation assembly.
Another characteristics of the present utility model are: the lower end of fixation assembly is provided with the filter sand extension pipe assembly that is connected with valve seat, also is provided with wire gaze in the filter sand extension pipe; The length of long-plunger equals the internal diameter of pump barrel assembly greater than the external diameter of the length of pump barrel assembly and sand control assembly; The internal diameter of sand setting extension pipe is greater than the external diameter of sand control assembly.
Because long-plunger sand control assembly of the present utility model adopts the sealing of alloy tapered sleeve, solved when oil well pump is worked in inclined shaft owing to valve ball is closed and lagged behind and leakage that the problem that falls partially increases, be provided with the filter sand extension pipe assembly of band wire gaze in the lower end of fixation assembly, can effectively stop the large particle sand grains in the liquid to enter pump barrel, adopt the structure of long-plunger short pump barrel, effectively prevented the sand card, but long-plunger sand control assembly rotation produces the problem that cross component force makes the long-plunger eccentric wear because of action of gravity when having solved oil well pump and working in tiltedly the time.
Description of drawings
Accompanying drawing is an overall structure schematic representation of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing structural principle of the present utility model and working principle are described in further detail.
Referring to accompanying drawing, the utility model comprises pump barrel assembly 14 and is arranged on the sand setting extension pipe 5 and the fixation assembly 4 of pump barrel assembly 14 lower ends, long-plunger 13 be sleeved in pump barrel assembly 14 and the sand setting extension pipe 5 and the length of long-plunger 13 greater than the length of pump barrel assembly 11, but also be disposed with the long-plunger sand control assembly 9 and the pull bar 8 of rotation in the long-plunger 13, be provided with alloy valve seat 6 in long-plunger sand control assembly 9 lower ends, the lower end of pull bar 8 also is provided with the alloy tapered sleeve 7 that matches with alloy valve seat 6, the upper end of long-plunger 13 also is provided with and the friction tight fuel-displaced joint 10 of setting upright of pull bar, be provided with the valve seat 1 of a band through hole in the fixation assembly 4, the ball valve 2 that matches with valve seat 1 is connected as a single entity by Returnning spring 3 and fixation assembly 4, the lower end of fixation assembly 4 is provided with the filter sand extension pipe assembly 11 that is connected with valve seat 1, also is provided with wire gaze 12 in filter sand extension pipe 11.
Valve ball 2 and Returnning spring 3 are housed on the fixation assembly 4 of the present utility model, when oil well pump is worked in inclined shaft, 3 pairs of valve ball 2 applied thrusts of Returnning spring, guarantee that valve ball 2 closes in time, do not fall partially, reduce leakage, the alloy tapered sleeve 7 that alloy valve seat 6 is housed on the long-plunger sand control assembly 9 and matches with alloy valve seat 6, when long-plunger sand control assembly 9 moved downward, pull bar 8 was opened alloy valve seat 6 and alloy tapered sleeve 7 earlier by force, make liquid through in the middle of the long-plunger sand control assembly 9, move upward by the last fuel-displaced joint 10 of setting upright, when long-plunger sand control assembly 9 moved upward, pull bar 8 cut out alloy valve seat 6 and alloy tapered sleeve 7 earlier by force, the blocking-up hydraulic slip, and so forth, the liquid in the oil well just can constantly be pumped to ground, and the gas lock problem can solve, increase output simultaneously, improved pump efficiency.On the filter sand extension pipe assembly 11 corrosion resistant wire gaze 12 is housed, can effectively stops the large particle sand grains in the liquid to enter pump barrel, prevent holddown.Adopt the long-plunger sand control assembly 9 of length greater than pump barrel assembly 11, add the internal diameter sand setting extension pipe 5 more bigger than pump barrel assembly internal diameter, pump barrel does not leave plunger piston assembly during oil well pump work, thereby make sand grains be difficult to enter between long-plunger sand control assembly 9 and the pump barrel assembly 11, unnecessary a small amount of sand grains sinks in the sand setting extension pipe 5, be discharged to again in the oil pipe, solved the problem of sand card oil well pump effectively.Pull bar 8 in the long-plunger sand control assembly 9 is not with fixing between the long-plunger 13, long-plunger sand control assembly 9 when pumping also in rotation, the problem of plunger eccentric wear when having solved common oil well pump and in inclined shaft, working.
Claims (4)
1, recover the oil and use oil well pump in a kind of oil field, comprise pump barrel assembly [14] and long-plunger [13], it is characterized in that: the lower end of pump barrel assembly [14] is provided with sand setting extension pipe [5] and fixation assembly [4], long-plunger [13] is sleeved in pump barrel assembly [14] and the sand setting extension pipe [5], at long-plunger [13] but in also be disposed with the long-plunger sand control assembly [9] and the pull bar [8] of rotation, be provided with alloy valve seat [6] in the lower end of long-plunger sand control assembly [9], the lower end of pull bar [8] also is provided with the alloy tapered sleeve [7] that matches with alloy valve seat [6], the upper end of long-plunger [13] also is provided with and the friction tight fuel-displaced joint [10] of setting upright of pull bar, be provided with the valve seat [1] of a band through hole in the fixation assembly [4], the ball valve [2] that matches with valve seat [1] is connected as a single entity by Returnning spring [3] and fixation assembly [4].
2, recover the oil and use oil well pump in oil field according to claim 1, and it is characterized in that: the lower end of said fixation assembly [4] is provided with the filter sand extension pipe assembly [11] that is connected with valve seat [1], also is provided with wire gaze [12] in filter sand extension pipe [11].
3, recover the oil and use oil well pump in oil field according to claim 1, it is characterized in that: the length of said long-plunger [13] equals the internal diameter of pump barrel assembly [11] greater than the external diameter of the length of pump barrel assembly [11] and sand control assembly [9].
4, recover the oil and use oil well pump in oil field according to claim 1, and it is characterized in that: the internal diameter of said sand setting extension pipe [5] is greater than the external diameter of sand control assembly [9].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041753 CN2704701Y (en) | 2004-04-08 | 2004-04-08 | Oil-well pump for extracting oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041753 CN2704701Y (en) | 2004-04-08 | 2004-04-08 | Oil-well pump for extracting oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2704701Y true CN2704701Y (en) | 2005-06-15 |
Family
ID=34774643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420041753 Expired - Fee Related CN2704701Y (en) | 2004-04-08 | 2004-04-08 | Oil-well pump for extracting oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2704701Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2684517C1 (en) * | 2017-10-30 | 2019-04-09 | Государственное бюджетное образовательное учреждение высшего образования "Альметьевский государственный нефтяной институт" | Oil well pump |
-
2004
- 2004-04-08 CN CN 200420041753 patent/CN2704701Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2684517C1 (en) * | 2017-10-30 | 2019-04-09 | Государственное бюджетное образовательное учреждение высшего образования "Альметьевский государственный нефтяной институт" | Oil well pump |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050615 Termination date: 20100408 |