CN203453019U - Bottom-supporting sand-preventing oil-well pump - Google Patents
Bottom-supporting sand-preventing oil-well pump Download PDFInfo
- Publication number
- CN203453019U CN203453019U CN201320480447.4U CN201320480447U CN203453019U CN 203453019 U CN203453019 U CN 203453019U CN 201320480447 U CN201320480447 U CN 201320480447U CN 203453019 U CN203453019 U CN 203453019U
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- oil
- pipe
- well pump
- sand
- plunger
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Abstract
The utility model relates to a bottom-supporting sand-preventing oil-well pump, and belongs to oil extraction equipment. The bottom-supporting sand-preventing oil-well pump comprises an oil-well pump assembly, the oil-well pump assembly is arranged in an oil pipe, a pump cylinder centering ring is arranged between the oil-well pump assembly and the oil pipe, the oil-well pump assembly is connected with a sand-preventing supporting assembly through an upper coupling, the sand-preventing supporting assembly is composed of a supporting joint, a connecting pipe, an oil inlet pipe, a fixing pipe, a sieving pipe and a lower coupling, the supporting joint is connected with the lower end of the oil-well pump assembly, the lower end of the supporting joint is connected with the oil inlet pipe, a hole is formed in the side wall of the oil inlet pipe, the bottom end of the oil inlet pipe is sealed, the lower end of the upper coupling is connected with the connecting pipe, the fixing pipe is connected to the lower portion of the connecting pipe, the sieving pipe is arranged on the periphery of the fixing pipe, the annular sealed space formed by the fixing pipe and the sieving pipe is communicated with the internal space of the oil inlet pipe through a side pipe, the fixing pipe is arranged at the periphery of the oil inlet pipe, and an annular space is formed between the oil inlet pipe and the fixing pipe. The bottom-supporting sand-preventing oil-well pump effectively prevents sand from being deposited on the oil-well pump, and avoids the sand blocking phenomenon which is caused by sand deposition.
Description
Technical field
The utility model relates to a kind of bottom support sand-proof oil-well pump, belongs to oil production equipment field.
Background technique
In petroleum production industry, oil well pump is a link important in underground equipment.No matter the oil well pump using both at home and abroad is at present integeral tube pumping pump, rod-type pumping unit, or tubing pump, in oil recovery process, if contain sand grains and dirt in fluid, can be deposited in pump barrel inside and valve pair, cause holddown phenomenon, and then cause oil well operation accident, to oil extraction operation, cause very large loss.
Summary of the invention
The purpose of this utility model will provide a kind of bottom support sand-proof oil-well pump to solve above problem exactly.The utility model design concept is ingenious, and novel form is convenient to manufacture.
The technological scheme that the utility model provides is:
Bottom support sand-proof oil-well pump, comprise oil well pump assembly, oil well pump assembly is positioned at oil pipe, between oil well pump assembly and oil pipe, be provided with pump barrel centering ring, oil well pump assembly is connected with sand control support assembly by upper box cupling, described sand control support assembly is by supported joint, connecting tube, oil inlet pipe, fixed tube, screen casing and lower box cupling form, supported joint is connected with oil well pump assembly lower end, supported joint lower end connects oil inlet pipe, oil inlet pipe sidewall has hole and its bottom end seal, upper box cupling lower end is connected with connecting tube, connecting tube below is connected and fixed pipe, in fixed tube periphery, be provided with screen casing, the annular seal space forming between fixed tube and screen casing communicates with the inner space of oil inlet pipe by side pipe, fixed tube forms annulus between the periphery of oil inlet pipe and the two.
Concrete, between oil well pump assembly and oil pipe, form annulus.
Preferably, plunger upper cover, upper travelling valve is secondary, middle joint, long-plunger, work pump barrel, righting pump barrel, plunger lower cover, lower travelling valve is secondary, pipe close, pump barrel valve bonnet, the secondary oil well pump assembly that forms of pump barrel valve, it is secondary that plunger upper cover lower end connects upper travelling valve, the secondary lower end of upper travelling valve connects long-plunger by middle joint, long-plunger lower end connects plunger lower cover, plunger lower cover lower end connects pipe close, in the space that plunger lower cover and pipe close form, lower travelling valve pair is set, long-plunger overcoat has work pump barrel and righting pump barrel, work pump barrel is positioned at the upper end of righting pump barrel, righting pump barrel lower end connects pump barrel valve bonnet, it is secondary that pump barrel valve bonnet lower end arranges pump barrel valve.
Preferably, the pump barrel valve bonnet lower end of oil well pump assembly connects supported joint by support lock pawl.
The sand grains that structural feature of the present utility model is conducive in fluid deposits in the oil pipe of bottom, avoid depositing in oil pump sleeve and valve pair, thereby effectively prevented sand card phenomenon, alleviated task difficulty, reduce the operating cost in oil field, there is very high use value.
Accompanying drawing explanation
Fig. 1 is general assembly drawing of the present utility model.
Fig. 2 is A-A cut away view in Fig. 1.
The secondary 3 middle joint 4 long-plunger 5 pump barrel centering rings of 1 plunger upper cover 2 upper travelling valve
Secondary 10 pipe closes of 6 work pump barrel 7 righting pump barrel 8 plunger lower cover 9 lower travelling valves
20 times box cupling 21 oil pipes of 16 connecting tube 17 oil inlet pipe 18 fixed tube 19 screen casings
22 side pipes.
concrete mode of execution
As shown in the figure, bottom support sand-proof oil-well pump, comprises oil well pump assembly and sand control support assembly.Oil well pump assembly is positioned at oil pipe, between oil well pump assembly and oil pipe, forms annulus.Between oil well pump assembly and oil pipe, be provided with pump barrel centering ring.Oil well pump assembly relies on pump barrel centering ring to stand in the middle of oil pipe, and oil well pump assembly and oil pipe form sand setting passage between the two.Oil pipe lower end connects upper box cupling.Oil well pump assembly is connected with sand control support assembly by upper box cupling.
Described sand control support assembly consists of supported joint, connecting tube, oil inlet pipe, fixed tube, screen casing and lower box cupling, supported joint is connected with oil well pump assembly lower end, supported joint lower end connects oil inlet pipe, oil inlet pipe sidewall has hole and its bottom end seal, upper box cupling lower end is connected with connecting tube, connecting tube below is connected and fixed pipe, in fixed tube periphery, be provided with screen casing, the annular seal space forming between fixed tube and screen casing communicates with the inner space of oil inlet pipe by side pipe, and fixed tube forms annulus between the periphery of oil inlet pipe and the two.Fixed tube lower end is connected with bottom oil pipe by lower box cupling.
Plunger upper cover, upper travelling valve is secondary, middle joint, long-plunger, work pump barrel, righting pump barrel, plunger lower cover, lower travelling valve is secondary, pipe close, pump barrel valve bonnet, the secondary oil well pump assembly that forms of pump barrel valve, it is secondary that plunger upper cover lower end connects upper travelling valve, the secondary lower end of upper travelling valve connects long-plunger by middle joint, long-plunger lower end connects plunger lower cover, plunger lower cover lower end connects pipe close, in the space that plunger lower cover and pipe close form, lower travelling valve pair is set, long-plunger overcoat has work pump barrel and righting pump barrel, work pump barrel is positioned at the upper end of righting pump barrel, righting pump barrel lower end connects pump barrel valve bonnet, it is secondary that pump barrel valve bonnet lower end arranges pump barrel valve.
The pump barrel valve bonnet lower end of oil well pump assembly connects supported joint by support lock pawl.
Sand control support assembly is connected to box cupling below, and oil inlet pipe, fixed tube, screen casing three form filter sand oil inlet passage by side pipe, between oil inlet pipe and fixed tube, have certain space, as sand grains sinking passage.Between filter sand oil inlet passage and sand grains sinking passage, do not communicate.
The plunger piston assembly of oil well pump assembly is up, and the fluid between oil pipe and sleeve pipe enters in oil well pump assembly by screen casing, fixed tube, oil inlet pipe, and large particle sand grains is stoped outside by screen casing.The plunger piston assembly of oil well pump assembly is descending, oil well pump assembly inner fluid enters in the oil pipe on oil well pump assembly top by lower travelling valve pair and upper travelling valve pair, the a small amount of sand grains containing in fluid enters in the oil pipe that lower box cupling bottom is connected through sand setting passage and sand grains sinking passage, effectively prevent the deposition of sand grains on oil well pump, avoided sand card phenomenon.
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 the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characteristics is equal to replacement embodiment of the present utility model; 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 that the utility model asks for protection.
Claims (4)
1. bottom support sand-proof oil-well pump, it is characterized in that, comprise oil well pump assembly, oil well pump assembly is positioned at oil pipe, between oil well pump assembly and oil pipe, be provided with pump barrel centering ring, oil well pump assembly is connected with sand control support assembly by upper box cupling, described sand control support assembly is by supported joint, connecting tube, oil inlet pipe, fixed tube, screen casing and lower box cupling form, supported joint is connected with oil well pump assembly lower end, supported joint lower end connects oil inlet pipe, oil inlet pipe sidewall has hole and its bottom end seal, upper box cupling lower end is connected with connecting tube, connecting tube below is connected and fixed pipe, in fixed tube periphery, be provided with screen casing, the annular seal space forming between fixed tube and screen casing communicates with the inner space of oil inlet pipe by side pipe, fixed tube forms annulus between the periphery of oil inlet pipe and the two.
2. bottom support sand-proof oil-well pump according to claim 1, is characterized in that, between oil well pump assembly and oil pipe, forms annulus.
3. according to bottom support sand-proof oil-well pump described in claim 1 or 2, it is characterized in that, plunger upper cover, upper travelling valve is secondary, middle joint, long-plunger, work pump barrel, righting pump barrel, plunger lower cover, lower travelling valve is secondary, pipe close, pump barrel valve bonnet, the secondary oil well pump assembly that forms of pump barrel valve, it is secondary that plunger upper cover lower end connects upper travelling valve, the secondary lower end of upper travelling valve connects long-plunger by middle joint, long-plunger lower end connects plunger lower cover, plunger lower cover lower end connects pipe close, in the space that plunger lower cover and pipe close form, lower travelling valve pair is set, long-plunger overcoat has work pump barrel and righting pump barrel, work pump barrel is positioned at the upper end of righting pump barrel, righting pump barrel lower end connects pump barrel valve bonnet, it is secondary that pump barrel valve bonnet lower end arranges pump barrel valve.
4. bottom support sand-proof oil-well pump according to claim 3, is characterized in that, the pump barrel valve bonnet lower end of oil well pump assembly connects supported joint by support lock pawl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320480447.4U CN203453019U (en) | 2013-08-08 | 2013-08-08 | Bottom-supporting sand-preventing oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320480447.4U CN203453019U (en) | 2013-08-08 | 2013-08-08 | Bottom-supporting sand-preventing oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203453019U true CN203453019U (en) | 2014-02-26 |
Family
ID=50132901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320480447.4U Expired - Fee Related CN203453019U (en) | 2013-08-08 | 2013-08-08 | Bottom-supporting sand-preventing oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203453019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893749A (en) * | 2017-12-27 | 2018-04-10 | 嘉禾福顺机械实业有限公司 | A kind of anti-deviation tubing pump of anti-sticking |
-
2013
- 2013-08-08 CN CN201320480447.4U patent/CN203453019U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893749A (en) * | 2017-12-27 | 2018-04-10 | 嘉禾福顺机械实业有限公司 | A kind of anti-deviation tubing pump of anti-sticking |
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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 |
Granted publication date: 20140226 Termination date: 20140808 |
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| EXPY | Termination of patent right or utility model |