CN2727450Y - Integral tube type sand prevention oil-well pump - Google Patents
Integral tube type sand prevention oil-well pump Download PDFInfo
- Publication number
- CN2727450Y CN2727450Y CN 200420091627 CN200420091627U CN2727450Y CN 2727450 Y CN2727450 Y CN 2727450Y CN 200420091627 CN200420091627 CN 200420091627 CN 200420091627 U CN200420091627 U CN 200420091627U CN 2727450 Y CN2727450 Y CN 2727450Y
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- oil
- pump
- plunger
- displaced
- fuel
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Abstract
The utility model discloses an integral tube type sand prevention oil-well pump which solves the problems of underground tripping of an oil-well pump, blocking of a plunger by sand and blocking of a valve ball resulting from the accumulated sand deposits and frequently collides an oil feeding valve cover of a common pump tube. An upper valve cover of a plunger of the utility model is axially and spirally distributed with three or four flower-basket-shaped oil outlet declined grooves, and the direction of the oil outlet declined groove forms an angle of from 30 DEG to 60 DEG with the radial line of the pump tube. The top of the oil feeding valve cover of the pump tube is axially and evenly distributed with from four to eight through small oil holes, and valve ball jump spaces communicated with the small oil holes are regular taper blind holes. Improving the structures of an oil discharging valve cover of the plunger and the oil feeding valve cover of the pump tube, an oil-well pump with small pump diameter is designed and manufactured with the principle of a Stream of Water Runs Forever to solve the problems of blocking and burying by sand caused by the shortage of underground liquid supply and intermittent exploitation. Thereby, the cost of well maintenance is reduced, and the utility model provides a new selection for deep-well exploitation.
Description
Technical field
The utility model relates to a kind of integral-tube type sand-control pump.
Background technique
The early stage standard subsurface tubing pumps of producing of the application unit, the needs of exploitation of oil field later stage and deep mining can not have been satisfied, and oil-release valve cover adopts radial equipartition three straight trough structures on its plunger, and domestic most producers adopt three straight troughs or the uniform structure of four straight troughs.This structure processing is simple, but when containing the use of sand oil well, the sand grains in the sucker rod upstroke movement process in the oil pipe is deposited on the ring-like space of plunger and pump barrel easily, causes sand card plunger, reduces the oil well pump operation cycle, increases operating cost.Rod string is when down stroke simultaneously, because of the frictional force between plunger and pump barrel and well liquid by the drag effect of traveling valve, make the roofbolt lower thread be in pressured state, when this pressure during greater than a certain limiting value, rod string will store certain torque potential energy along the tube wall helical buckling.Roofbolt becomes tension by pressurized when up stroke, thereby discharges torque potential energy.So frequent stressed and distortion, torque make the sucker rod screw thread loosening easily, and then cause dropout from being stored into release.The integral-tube type pump that the our factory produces, the drawing of the former employing of pump barrel oil-feed valve bonnet U.S. LTV energy company, the product oil outlet is the plum blossom valve structure, the manufacturing procedure more complicated, and because material heat treatment process does not pass a test, part inner and outer surface difference in hardness is bigger after the heat treatment, thereby after the use a period of time that occurs going into the well, under the frequent bump of valve ball, deform, the phenomenon in the plum blossom lobe occurs being stuck in after valve ball takeoffs, influence the normal use of oil well pump.After change into the plum blossom lobe scraped out the room, though avoided valve ball to be blocked, bigger because of the room, valve ball resets slower, the wastage of oil well pump increases, the production fluid amount reduces, pump efficiency reduces.
Summary of the invention
The purpose of this utility model provides the integral-tube type sand-proof oil-well pump of a kind of being applicable to " little pump is taken out deeply ", solves oil well pump simultaneously and stockpiles because of sand setting and the frequent stuck problem of valve ball that causes of clashing at down-hole dropout and sand card plunger and conventional pump barrel oiling valve cover.
The utility model comprises pull bar, pump barrel box cupling, pump barrel, plunger upper part valve bonnet, outlet valve, combined plunger, plunger bottom valve bonnet, plunger valve seat pressure cap, pump barrel oil-feed valve bonnet, oiling valve; The plunger upper part valve bonnet of described pump axially in the shape of a spiral shape be distributed with 3～4 fuel-displaced skewed slots of flower basket type, the direction of fuel-displaced skewed slot becomes 30～60 ° of angles with the pump barrel radial line; Pump barrel oil-feed valve bonnet top is evenly equipped with the fuel-displaced aperture of 4～8 perforations vertically, and the valve ball high jump room that communicates with fuel-displaced aperture is positive tapered blind hole.
The utility model is by the structure of oil-release valve cover and pump barrel oil-feed valve bonnet on the improvement plunger, utilize the principle of " doing little by little without a break ", manufacture and design small pump diameter oil well pump product, solve in the exploitation of oil field later stage, carry out intermittently exploitation and the sand card, the sand that cause bury problem because of down-hole feed flow deficiency; Reduce the workover eration expense that therefore causes.Simultaneously also provide new selection for deep mining.Improved part also comprises flower basket type three flume structures of oil-release valve cover part on the plunger and the uniform wimble structure that adds of six apertures that pump barrel oil-feed valve bonnet adopts, it is exactly plum blossom lobe oil outlet structure with routine, changing the valve ball direction of takeofing into is positive tapered blind hole, pushes up the form of uniform six fuel-displaced apertures; Cone structure after the improvement helps rising fast of valve ball closes, and six oil outlets are distributed in around the valve ball, can effectively reduce pump barrel oil-feed resistance, also solve the problem that valve ball is stuck easily.Oil-release valve cover adopts flower basket type three flume structures on the plunger, and the grains of sand in the fluid are deposited in the flower basket type spiral chute when the roofbolt up stroke, in the fuel-displaced process of plunger sand grains has been dashed when treating down stroke and has brought oil pipe into; Sand grains is constantly discharged with well liquid, effectively avoid sand card plunger.Simultaneously because of its skewed slot direction and 30 ° of angles of pump radial line formation, when the sucker rod down stroke, when just roofbolt releases, the well liquid that three skewed slots of oil-release valve cover flow out from the plunger, relative rod string produces tangential force when flowing out, thereby sucker rod is produced one go up the button torque, play certain active anticreep effect.
Manufacturing and designing of the utility model integral-tube type sand-proof oil-well pump expanded the oil well pump product line, the product specification kind that has increased.
The utility model is described in further detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of oil-release valve cover on the utility model plunger;
Fig. 3 is the sectional drawing of fuel-displaced skewed slot among Fig. 2;
The structural representation of Fig. 4 the utility model pump barrel oil-feed valve bonnet;
Fig. 5 is the left view of Fig. 4.
Embodiment
The reference character implication is as follows:
Pull bar 1, pump barrel box cupling 2, pump barrel 3, plunger upper part valve bonnet 4, outlet valve 5, combined plunger 6, plunger bottom valve bonnet 7, plunger valve seat pressure cap 8, pump barrel oil-feed valve bonnet 9, oiling valve 10, fuel-displaced aperture 11, fuel-displaced skewed slot 12, tapered blind hole 13
The utility model comprises pull bar 1, pump barrel box cupling 2, pump barrel 3, plunger upper part valve bonnet 4, outlet valve 5, combined plunger 6, plunger bottom valve bonnet 7, plunger valve seat pressure cap 8, pump barrel oil-feed valve bonnet 9, oiling valve 10; The plunger upper part valve bonnet 4 of pump axially in the shape of a spiral shape be distributed with 3～4 fuel-displaced skewed slots 12 of flower basket type, the direction of fuel-displaced skewed slot 12 becomes 30～60 ° of angles with pump barrel 3 radial lines; Pump barrel oil-feed valve bonnet 9 tops are evenly equipped with the fuel-displaced aperture 11 of 4～8 perforations vertically, and the valve ball high jump room that communicates with fuel-displaced aperture 11 is positive tapered blind hole 13.
The fuel-displaced aperture 11 of the utility model is preferably 6.
The opening direction of the fuel-displaced skewed slot 12 of the utility model is 120 °.
The fuel-displaced skewed slot 12 of the utility model is preferably 30 °, 45 ° or 60 ° of angles with the angle of pump barrel 3 radial lines.
It is the structure of oil-release valve cover on the utility model plunger that Fig. 1, Fig. 2 show, three fuel-displaced skewed slots shape distribution in the shape of a spiral on valve bonnet is axial as seen from Figure 1; Can find out clearly that according to Fig. 2 skewed slot becomes 30 ° of angles in the oil outlet position with the pump radial line.This structural design make fluid under pressure when oil outlet flows out relative rod string produce a tangential force, thereby play an anticreep effect; After the sand grains that deposits in the oil pipe falls into spiral chute simultaneously, will have been dashed by fluid in the fuel-displaced once more process and take out of, and cause holddown that effect is preferably arranged avoiding the sand grains deposition.
Accompanying drawing 2 is structural representations of pump barrel oil-feed valve bonnet, the arrow points end is a valve ball high jump direction, be designed to tapered blind hole 13 upwards, six fuel-displaced apertures are uniformly distributed along the circumference, can guarantee valve ball takeoff after disalignment not, and in time close at well hydraulic coupling lower valve ball when helping the plunger down stroke, avoid valve ball to be blocked, improved the oil pumping pump efficiency.
The utility model is not limited to above-mentioned implementing method, and oil-release valve cover part on plunger adopts three-flute or four groove structures, or makes radially at 45 or 60 ° of angles with pump into, all in the scope of the application's patent protection.The circumference uniform distribution oil outlet of pump barrel oil-feed valve bonnet is designed in four or six protection domains that all drop on the application.
The technical characteristics of the utility model integral-tube type sand-control pump is:
Pump barrel diameter: φ 28mm plungers length: 1200mm
Connect oil pipe: the 2-7/8TBG tubing round thread connects sucker rod: CYG19
Theoretical flowing capacity: 18.7-26 cubic meter/sky
Claims (5)
1, a kind of integral-tube type sand-proof oil-well pump, it comprises pull bar, pump barrel box cupling, pump barrel, plunger upper part valve bonnet, outlet valve, combined plunger, plunger bottom valve bonnet, plunger valve seat pressure cap, pump barrel oil-feed valve bonnet, oiling valve; It is characterized in that: the plunger upper part valve bonnet (4) of described pump axially in the shape of a spiral shape be distributed with 3～4 fuel-displaced skewed slots of flower basket type (12), the direction of fuel-displaced skewed slot (12) becomes 30～60 ° of angles with pump barrel (3) radial line; Pump barrel oil-feed valve bonnet (9) top is evenly equipped with the fuel-displaced aperture (11) of 4～8 perforations vertically, and the valve ball high jump room that communicates with fuel-displaced aperture (11) is positive tapered blind hole (13).
2, integral-tube type sand-proof oil-well pump according to claim 1 is characterized in that: described fuel-displaced aperture (11) is 6.
3, integral-tube type sand-proof oil-well pump according to claim 1 and 2 is characterized in that: the opening direction of described fuel-displaced skewed slot (12) is 120 °, becomes 30 ° of angles with pump barrel 3 radial lines.
4, integral-tube type sand-proof oil-well pump according to claim 1 and 2 is characterized in that: the opening direction of described fuel-displaced skewed slot (12) is 120 °, with pump barrel 3 radial lines angle at 45.
5, integral-tube type sand-proof oil-well pump according to claim 1 and 2 is characterized in that: the opening direction of described fuel-displaced skewed slot (12) is 120 °, becomes 60 ° of angles with pump barrel 3 radial lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420091627 CN2727450Y (en) | 2004-09-15 | 2004-09-15 | Integral tube type sand prevention oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420091627 CN2727450Y (en) | 2004-09-15 | 2004-09-15 | Integral tube type sand prevention oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2727450Y true CN2727450Y (en) | 2005-09-21 |
Family
ID=35043465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420091627 Expired - Fee Related CN2727450Y (en) | 2004-09-15 | 2004-09-15 | Integral tube type sand prevention oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2727450Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930937A (en) * | 2015-12-30 | 2017-07-07 | 固瑞克明尼苏达有限公司 | For the rotary-piston of pump |
-
2004
- 2004-09-15 CN CN 200420091627 patent/CN2727450Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930937A (en) * | 2015-12-30 | 2017-07-07 | 固瑞克明尼苏达有限公司 | For the rotary-piston of pump |
| US10337614B2 (en) | 2015-12-30 | 2019-07-02 | Graco Minnesota, Inc. | Rotating piston for pumps |
| CN106930937B (en) * | 2015-12-30 | 2019-07-05 | 固瑞克明尼苏达有限公司 | Rotary-piston for pump |
| US10859162B2 (en) | 2015-12-30 | 2020-12-08 | Graco Minnesota Inc. | Rotating piston for pumps |
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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 |