CN201615050U - High-efficiency oil-well pump - Google Patents
High-efficiency oil-well pump Download PDFInfo
- Publication number
- CN201615050U CN201615050U CN2010201341068U CN201020134106U CN201615050U CN 201615050 U CN201615050 U CN 201615050U CN 2010201341068 U CN2010201341068 U CN 2010201341068U CN 201020134106 U CN201020134106 U CN 201020134106U CN 201615050 U CN201615050 U CN 201615050U
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- pump
- valve
- valve ball
- connector
- plunger
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Abstract
A high-efficiency oil-well pump relates to the technical field of petroleum machinery exploitation and comprises an outer tube connector, wherein the lower end of the outer tube connector is in threaded connection with an outer pump tube, a lower pump connector and a standing valve, the upper end of the lower pump connector is in inner threaded connection with a pump barrel, the upper end of the pump barrel is in threaded connection with an upper pump connector which is arranged inside the outer pump tube, a plunger is sleeved inside the pump barrel and comprises an upper connector, the lower end of the upper connector is in threaded connection with an upper valve housing, an upper pilot valve shield, an upper valve ball and an upper valve ball seat are arranged inside the upper valve housing, the lower end of the upper valve housing is in threaded connection with a plunger body, the lower end of the plunger body is in threaded connection with a connector, the lower end of the connector is in threaded connection with a lower valve body, and a lower pilot valve shield, a lower valve ball and a lower valve ball seat are arranged inside the lower valve body. The oil-well pump has the advantages as follows: firstly, hydraulic pressure inside and outside the pump barrel is in an equilibrium state; secondly, the pump barrel does not bear external load (stretch or compression); thirdly, castings of the tube wall can be deposited in a space between the pump barrel and the outer tube; and fourthly, the through flow sectional area of a pump feed liquor valve is increased.
Description
Technical field
The utility model relates to petroleum machinery exploitation technology field.
Background technique
Problems such as at present, sucker rod pumping employed conventional tubing pump in oil field facts have proved, hangs dark and when containing the comparatively abominable oil well of hole conditions such as sand, fouling when pump, and it is low to exist pump efficiency, and pump detection period is short, main cause is as follows:
1, owing to use the metal hard-sealing plunger, be subjected to the influence of machining error, unobstructed for guarantee that plunger moves in pump barrel, the design matching gap of plunger and pump barrel is bigger, and the wastage that causes plunger and pump barrel matching gap to produce is higher, and pump efficiency is lower.
2, after the grains of sand in the crude oil and impurity particle etc. enter metal plunger and pump barrel matching gap, increase descending resistance, and along with pumping of plunger, also can cause pump barrel and plunger wear, because metal plunger does not have compensatory, cause matching gap to increase, wastage increases, and pump efficiency reduces.When the grains of sand and impurity particle are big, also can plunger is stuck, cause holddown.
3, hang deeply, when producing fluid level is low, form huge pressure reduction inside and outside the pump barrel when pump, the pump barrel internal diameter is enlarged, cause the increase of plunger and pump barrel matching gap; When pump place hole angle was big instantly, plunger was easy to generate center displacement, caused the pump leakage serious, and pump efficiency reduces.
When 4, using in inclined shaft, valve ball exists closes retardation phenomenon, causes pump efficiency to reduce.
The model utility content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of efficient oil-well pump to be provided, and it is compensatory that plunger is had, and the gap that cooperates with pump barrel is little, and wastage reduces, thereby improves pump efficiency.
The purpose of this utility model is achieved in that a kind of efficient oil-well pump, comprise outer tube joint, the lower end of the outer tube joint pump outer tube that is threaded, the lower end internal thread of pump outer tube connects the pump lower contact, the lower end screw thread of pump lower contact is connected and fixed valve, and the upper end internal thread of pump lower contact connects pump barrel, the pump upper connection that is threaded of the upper end of pump barrel, the pump upper connection is arranged in the pump outer tube, and pump barrel internal clearance formula is nested with plunger; Described plunger comprises upper connection, the lower end of upper connection is threaded and goes up valve shell, guiding valve bonnet, upper valve ball and upper valve ball seat are set in the last valve shell, described inboard of going up valve shell radially is provided with convex platform, described upper valve ball seat is arranged on the top of convex platform, described upward pilot valve cover is arranged on the top of upper valve ball seat, and described upper end of going up the guiding valve bonnet pushes against the lower end in upper connection, and described upper valve ball is arranged in the guiding valve bonnet; The described lower end screw thread attachment post cock body of going up in the valve shell, the lower end of the plunger body connecting head that is threaded, the lower end of the connecting head valve body that is threaded down, guiding valve bonnet, lower valve ball and lower valve ball seat are set down in the following valve body, the described inboard of valve body down radially is provided with lower convex platform, and described lower valve ball seat is arranged on the top of lower convex platform, and described pilot valve cover down is arranged on the top of lower valve ball seat, described lower valve ball is arranged on down in the guiding valve bonnet, and the described upper end of guiding valve bonnet down pushes against the lower end at connecting head.
After the pump housing was threaded with standing valve and afterwards is lowered to appointed positions with oil pipe, the upper connection of plunger was threaded with sucker rod, is lowered in the pump barrel from well head.Working principle: during up stroke, plunger is up under the drive of sucker rod, plunger below pump chamber volume increases, pressure descends, wander up and down valve (being valve ball) cuts out under the effect of oil pipe head of liquid, standing valve (ball valve) is opened under the effect of reticent pressure, and the annular intracavity liquid between oil pipe and the sleeve pipe enters in the pump chamber of plunger below.During down stroke, plunger is descending under the drive of sucker rod, plunger below pump chamber volume reduces, pressure increases, standing valve (ball valve) cuts out by the effect of self gravitation and chamber pressure, wander up and down valve (being valve ball) is opened under the effect of chamber pressure, and liquid is drained in the oil pipe of plunger top gradually in the pump chamber of plunger below.
1), the pump housing adopts the pump barrel lower end to fix the beneficial effects of the utility model are:, the pump barrel upper end is suspended in the outer tube an i.e. seat formula double pipe structure; Eliminated pump barrel and born the influence of fluid column load and tubing string load, guaranteed that the inside and outside hydraulic pressure of pump barrel is in the state of balance all the time, made the original matching gap maintenance of plunger and pump barrel constant all the time at pit shaft.
2), efficient traveling valve changed existing greatly with the ball chamber of the upper and lower valve that moves about on the oil pump plunger piston, valve ball is big at the indoor drift value of ball in the to-and-fro motion of plunger, valve ball falls problems such as not rapid after rise; By giving rational high jump of valve ball and drift value, make valve ball close rapidly, accurate.
3), to have only an effect be oil outlet to the upper connection in the efficient traveling valve, avoids the bump of valve ball, solved the recurrent disconnected fault of taking off.
4), select the feed liquor valve (standing valve) of coupling for use according to the requirement of pump.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the structural representation of plunger.
Among the figure, 1 outer tube joint, 2 pump outer tubes, 3 pump upper connections, 4 pump barrels, 5 plungers, 5-1 upper connection, the last valve shell of 5-2, the last guiding of 5-3 valve bonnet, 5-4 upper valve ball, 5-5 upper valve ball seat, 5-6 plunger body, the 5-7 connecting head, valve body under the 5-8,5-9 be the guiding valve bonnet down, the 5-10 lower valve ball, 5-11 lower valve ball seat, 5-12 convex platform, the 5-13 lower convex platform, 6 pump lower contacts, 7 standing valves.
Embodiment
As shown in Figure 1, be a kind of efficient oil-well pump, comprise outer tube joint 1, the lower end of the outer tube joint 1 pump outer tube 2 that is threaded, the lower end internal thread of pump outer tube 2 connects pump lower contact 6, the lower end screw thread of pump lower contact 6 is connected and fixed valve 7, the upper end internal thread of pump lower contact 6 connects pump barrel 4, the pump upper connection 3 that is threaded of the upper end of pump barrel 4, and pump upper connection 3 is arranged in the pump outer tube 2, pump barrel 4 internal clearance formulas are nested with plunger 5, plunger 5 can be in pump barrel 4 back and forth movement.
As shown in Figure 2, plunger 5 comprises upper connection 5-1, and the lower end of upper connection 5-1 is threaded and goes up valve shell 5-2, and guiding valve bonnet 5-3, upper valve ball 5-4 and upper valve ball seat 5-5 are set in the last valve shell 5-2.The inboard of last valve shell 5-2 radially is provided with convex platform 5-12, the top of convex platform 5-12 pack in proper order upper valve ball seat 5-5, upper valve ball 5-4 and go up guiding valve bonnet 5-3, on the lead upper end of valve bonnet 5-3 push against lower end at upper connection 5-1.Lower end screw thread attachment post cock body 5-6 in the last valve shell 5-2, the lower end of the plunger body 5-6 connecting head 5-7 that is threaded, the lower end of the connecting head 5-7 valve body 5-8 that is threaded down, guiding valve bonnet 5-9, lower valve ball 5-10 and lower valve ball seat 5-11 are set down in the following valve body 5-8, the inboard of following valve body 5-8 radially is provided with lower convex platform 5-13, the top of lower convex platform 5-13 pack in proper order lower valve ball seat 5-11, lower valve ball 5-10 and following guiding valve bonnet 5-9, following upper end of leading valve bonnet 5-9 pushes against the lower end at connecting head 5-7.
Claims (1)
1. efficient oil-well pump, comprise outer tube joint, the lower end of the outer tube joint pump outer tube that is threaded, the lower end internal thread of pump outer tube connects the pump lower contact, the lower end screw thread of pump lower contact is connected and fixed valve, and the upper end internal thread of pump lower contact connects pump barrel, the pump upper connection that is threaded of the upper end of pump barrel, the pump upper connection is arranged in the pump outer tube, and pump barrel internal clearance formula is nested with plunger; It is characterized in that: described plunger comprises upper connection, the lower end of upper connection is threaded and goes up valve shell, guiding valve bonnet, upper valve ball and upper valve ball seat are set in the last valve shell, described inboard of going up valve shell radially is provided with convex platform, described upper valve ball seat is arranged on the top of convex platform, described upward pilot valve cover is arranged on the top of upper valve ball seat, and described upper end of going up the guiding valve bonnet pushes against the lower end in upper connection, and described upper valve ball is arranged in the guiding valve bonnet; The described lower end screw thread attachment post cock body of going up in the valve shell, the lower end of the plunger body connecting head that is threaded, the lower end of the connecting head valve body that is threaded down, guiding valve bonnet, lower valve ball and lower valve ball seat are set down in the following valve body, the described inboard of valve body down radially is provided with lower convex platform, and described lower valve ball seat is arranged on the top of lower convex platform, and described pilot valve cover down is arranged on the top of lower valve ball seat, described lower valve ball is arranged on down in the guiding valve bonnet, and the described upper end of guiding valve bonnet down pushes against the lower end at connecting head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201341068U CN201615050U (en) | 2010-03-11 | 2010-03-11 | High-efficiency oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201341068U CN201615050U (en) | 2010-03-11 | 2010-03-11 | High-efficiency oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615050U true CN201615050U (en) | 2010-10-27 |
Family
ID=43001419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201341068U Expired - Fee Related CN201615050U (en) | 2010-03-11 | 2010-03-11 | High-efficiency oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201615050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306953A (en) * | 2012-03-09 | 2013-09-18 | 长江大学 | Swabbing oil recovery pump with double fixed valves |
-
2010
- 2010-03-11 CN CN2010201341068U patent/CN201615050U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306953A (en) * | 2012-03-09 | 2013-09-18 | 长江大学 | Swabbing oil recovery pump with double fixed valves |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20190311 |