CN204961253U - But draining formula sand control oil -well pump - Google Patents
But draining formula sand control oil -well pump Download PDFInfo
- Publication number
- CN204961253U CN204961253U CN201520568733.5U CN201520568733U CN204961253U CN 204961253 U CN204961253 U CN 204961253U CN 201520568733 U CN201520568733 U CN 201520568733U CN 204961253 U CN204961253 U CN 204961253U
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- CN
- China
- Prior art keywords
- oil
- pump
- drainer
- pump barrel
- outer tube
- 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.)
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Abstract
The utility model relates to an oil production equipment field, concretely relates to but draining formula sand control oil -well pump. But draining formula sand control oil -well pump, including outer tube, pump barrel assembly and plunger assembly, its characterized in that, the top of plunger assembly is located pump barrel assembly top all the time in the motion process, and the bleeder is connected to the outer tube lower extreme, and screen pipe cover and separator are connected to the bleeder lower extreme, and the screen pipe ways is in the separator outside. The beneficial effects of the utility model are that it is rational in infrastructure, be full of the pump chamber during plunger assembly reciprocating motion, dew is outside the pump barrel all the time in plunger assembly upper end, and in the sand material can not get into the pump chamber, the draining can effectively be realized to the bleeder of increase.
Description
Technical field
The utility model relates to oil production equipment field, is specifically related to a kind of oil drainage type sand-proof oil-well pump.
Background technique
The many oil fields of China have entered middle and later periods exploitation, and underground hole condition is complicated, and in well liquid, sand content is comparatively large, and make oil well pump premature failure, oil well repair free period shortens, and causes cost for oil production greatly to increase.
Summary of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure, sands-proof check, effectively realizes draining, the oil drainage type sand-proof oil-well pump that corrosion-resistant, the life-span is long.
The technical solution of the utility model is:
Oil drainage type sand-proof oil-well pump, comprise outer tube, pump barrel assembly and plunger piston assembly, the top of plunger piston assembly is positioned at all the time above pump barrel assembly in movement process, and outer tube lower end connects oil drainer, oil drainer lower end connects screen pipe sleeve and separator, and screen pipe sleeve is enclosed within outside separator.
Concrete, pump barrel assembly comprises main pump cylinder, and main pump cylinder upper end connects centering ring, main pump cylinder lower end connection coupling, and box cupling connects auxiliary pump barrel upper end.
Concrete, there is annular space between pump barrel assembly and outer tube.
Concrete, oil drainer body intermediate portion has hole, in the middle part of oil drainer, sidewall has hole and installs hollow pin, and hollow pin loads oil drainer in the mode of inlaying, between hollow pin and oil drainer, jump ring is set, oil drainer inner chamber bottom projecting block has incremental hole.
The beneficial effects of the utility model are rational in infrastructure, are full of pump chamber during plunger piston assembly to-and-fro motion, and plunger piston assembly upper end is exposed at outside pump barrel all the time, and sand material can not enter in pump chamber, and the oil drainer of increase effectively can realize draining.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Pump barrel 5 oil drainer 6 jump ring 7 pin 8 incremental hole 9 separator 10 screen pipe sleeve assisted by 1 plunger piston assembly 2 main pump cylinder 3 outer tube 4.
Embodiment
Oil drainage type sand-proof oil-well pump, comprise outer tube 3, pump barrel assembly and plunger piston assembly 1, outer tube 3 upper end connects upper connection, the top of plunger piston assembly 1 is positioned at all the time above pump barrel assembly in movement process, outer tube 3 lower end connects oil drainer 5, oil drainer 5 lower end connects screen pipe sleeve 10 and separator 9, and screen pipe sleeve 10 is enclosed within outside separator 9.
Annular space is had between pump barrel assembly and outer tube 3, when bumping off a well, sand material in pump barrel assembly upper end is sunk in the outer tube 3 of pump lower end by the toric space of pump barrel assembly and outer tube 3, avoids sand buried column plug and sucker rod, makes the utility model sands-proof check, sand control buries, corrosion-resistant, the life-span is long; Pump barrel assembly comprises main pump cylinder 2, and main pump cylinder 2 upper end connects centering ring, main pump cylinder 2 lower end connection coupling, and box cupling connects auxiliary pump barrel 4 upper end.
Oil drainer 5 body intermediate portion has hole, in the middle part of oil drainer 5, sidewall has hole and hollow pin 7 is installed, hollow pin 7 is made of copper, not easily be corroded, hollow pin 7 loads oil drainer 5 in the mode of inlaying, between hollow pin 7 and oil drainer 5, jump ring 6 is set, effectively avoids the phenomenon of dropout, oil drainer 5 inner chamber bottom projecting block has incremental hole 8.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to embodiment of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope of the utility model request protection.
Claims (4)
1. oil drainage type sand-proof oil-well pump, comprises outer tube, pump barrel assembly and plunger piston assembly, it is characterized in that, the top of plunger piston assembly is positioned at all the time above pump barrel assembly in movement process, outer tube lower end connects oil drainer, and oil drainer lower end connects screen pipe sleeve and separator, and screen pipe sleeve is enclosed within outside separator.
2. oil drainage type sand-proof oil-well pump according to claim 1, it is characterized in that, pump barrel assembly comprises main pump cylinder, and main pump cylinder upper end connects centering ring, main pump cylinder lower end connection coupling, and box cupling connects auxiliary pump barrel upper end.
3. oil drainage type sand-proof oil-well pump according to claim 1, is characterized in that there is annular space between pump barrel assembly and outer tube.
4. oil drainage type sand-proof oil-well pump according to claim 1, it is characterized in that, oil drainer body intermediate portion has hole, in the middle part of oil drainer, sidewall has hole and hollow pin is installed, hollow pin loads oil drainer in the mode of inlaying, between hollow pin and oil drainer, jump ring is set, oil drainer inner chamber bottom projecting block has incremental hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520568733.5U CN204961253U (en) | 2015-08-01 | 2015-08-01 | But draining formula sand control oil -well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520568733.5U CN204961253U (en) | 2015-08-01 | 2015-08-01 | But draining formula sand control oil -well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961253U true CN204961253U (en) | 2016-01-13 |
Family
ID=55056324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520568733.5U Active CN204961253U (en) | 2015-08-01 | 2015-08-01 | But draining formula sand control oil -well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961253U (en) |
-
2015
- 2015-08-01 CN CN201520568733.5U patent/CN204961253U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220819 Address after: 457000 northeast corner of the intersection of Jintian road and Xindong road in Puyang City, Henan Province (Pudong industrial agglomeration area) Patentee after: PUYANG YUANHENG LITONG PETROLEUM MACHINERY Co.,Ltd. Address before: 457000 south of Jintian Road, Pudong industrial cluster, Puyang City, Henan Province Patentee before: Wang Yiming |
|
| TR01 | Transfer of patent right |