CN2737990Y - Electric oil-submersible sandproof pump - Google Patents
Electric oil-submersible sandproof pump Download PDFInfo
- Publication number
- CN2737990Y CN2737990Y CN 200420075015 CN200420075015U CN2737990Y CN 2737990 Y CN2737990 Y CN 2737990Y CN 200420075015 CN200420075015 CN 200420075015 CN 200420075015 U CN200420075015 U CN 200420075015U CN 2737990 Y CN2737990 Y CN 2737990Y
- Authority
- CN
- China
- Prior art keywords
- pump
- assembly
- impeller
- sand
- guide wheel
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an electric oil-submersible sandproof pump, comprising a pump head assembly, a shaft, a shell body, a locking assembly, a pump base assembly, a bottom guide pulley and a splined sleeve. A connected position among the shaft, the pump head assembly and the pump base assembly is provided with a bearing bush, the shaft in the inner cavity of the shell body is assembled with a compressing impeller, a compressing guide pulley and a sandproof impeller assembly in turn, and the sandproof impeller assembly is composed of a sandproof guide pulley, a hard impeller and a hard guide pulley. The utility model solves the problem that a sand is clamped in an impeller guide pulley due to settling sand in the pump when a machine set stops and flow channels are blocked, the impeller guide pulley is matched with a hard alloy anti-thrust pad and a hard alloy lining, eccentric abrasion and radial abrasion are reduced, the service life of the impeller guide pulley is prolonged, and pump detecting cycle is also prolonged.
Description
Technical field
The utility model relates to a kind of electric submersible pump, is applicable in the oil well of sand production rate big (being no more than 5 ‰).
Technical background
The oil field is when using electric submersible centrifugal pump, because sand production usually can cause the pump card at present.Each parts heavy wear in the pump is shortened pump detection period, has seriously influenced the economic benefit and the using scope of submersible electric pump.Therefore the submersible electric pump bottom of being everlasting installs anti-sandpipe additional, carries out filter sand before well liquid enters centrifugal pump.But it exists following shortcoming: 1, sand screen easily stops up; 2, in a single day damage with the matching used packet of anti-sandpipe, then lose the function of sand control.
Summary of the invention
The purpose of this utility model is exactly the shortcoming that overcomes prior art, and a kind of electrical submersible sand-control pump is provided.
The purpose of this utility model is achieved in that the electrical submersible sand-control pump is made up of pump head assembly, axle, housing, locking assembly, pump seat assembly, bottom guide wheel, spline housing, bearing sleeve is equipped with at the position that axle connects with pump head assembly, pump seat assembly, on the axle of housing inner chamber, be equipped with successively compress impeller, compress guide wheel, sand control impeller assembly, sand control impeller assembly is made up of sand control guide wheel, sclerophyll wheel, hard guide wheel.
The sand control guide wheel is equipped with cemented carbide sand control guide wheel lining, and its internal diameter has the cemented carbide axle sleeve, and sand control guide wheel inside has groove, is used for sand setting; The sclerophyll wheel is equipped with the cemented carbide thrust washer.
The utility model has increased the sand control guide wheel and has been used for sand setting; sand fallout is caused in the pump in the time of can solving compressor emergency shutdown blade guiding wheel sand card and runner blockage problem; simultaneously its material is optimized; at blade guiding wheel supporting use cemented carbide thrust washer and cemented carbide lining; eccentric wear and gauge wear have been reduced; prolonged the operating life of blade guiding wheel; make electric pump can be operated in sand production rate below 5 ‰; the sand grains diameter contains in the sand drain 0.12mm's; wear-resisting when operation; after shutdown, restart Shi Buhui because of sand setting holddown in the pump, thereby prolong pump detection period.
Description of drawings
Fig. 1: the utility model structural representation; Fig. 2: novel blade guiding wheel structural drawing.
Among the figure: 1-axle, 2-pump head assembly, anti-down of 3-, 4-housing, 5-locking assembly, 6-compress impeller, 7-compresses guide wheel, 8-sand control guide wheel, 9-sclerophyll wheel, the hard guide wheel of 10-, 11-bottom guide wheel, 12-pump seat assembly, 13-spline housing, 14-cemented carbide thrust washer, 15-cemented carbide sand control guide wheel lining, 16-cemented carbide axle sleeve;
Embodiment
As shown in Figure 1, the electrical submersible sand-control pump is made up of pump head assembly 2, axle 1, housing 4, locking assembly 5, pump seat assembly 12, bottom guide wheel 11, spline housing 13, pump head assembly 2, housing 4, pump seat assembly 12 are threaded successively, are welded with anti-down 3 between them, prevent reversing.Bearing sleeve is equipped with at axle 1 position that connects with pump head assembly 2, pump seat assembly 12, on the axle of housing inner chamber, be equipped with successively compress impeller 6, compress guide wheel 7, sand control impeller assembly, sand control impeller assembly by sand control guide wheel 8, sclerophyll take turns 9, guide wheel 10 is formed firmly.Sand control guide wheel 8 is equipped with cemented carbide sand control guide wheel lining 15, and its internal diameter has cemented carbide axle sleeve 16, and sand control guide wheel 8 inside have groove, are used for sand setting; Sclerophyll wheel 9 is equipped with cemented carbide thrust washer 14.
During use, this electrical submersible sand-control pump lower end links by deaerator in spline housing 13 and the electric submersible pump extract system, and the high speed rotating by oil-submersible motor axle in the electric submersible pump extract system drives axle 1 and rotates.Well liquid is by flowing out in the deaerator chamber, when being flowed into by the passage of pump seat assembly 12, owing to install the cemented carbide bearing additional in the pump seat assembly, strengthens the wear-resisting property of bearing pair, thereby the sand grains that enters between bearing and the protective shaft sleeve is ground, to reduce gauge wear.Well liquid enters the inner flow passage of bottom guide wheel 11 then, thereupon compressing impeller 6 and compressing centrifugal force that guide wheel 7 produces and supercharging lifting step by step by high speed rotating, this moment, well liquid flow through in pump the novel blade guiding wheel assembly every 5～10 grades of assemblings, sclerophyll wheel 9 adopts cemented carbide thrust washer 14 with hard guide wheel 10 in the novel blade guiding wheel assembly owing to form, can strengthen the thrust power wearing and tearing between the blade guiding wheel greatly, prolong the blade guiding wheel operating life.Form the unique texture design of sand control guide wheel 8 in the novel blade guiding wheel simultaneously, when making termination of pumping in the well liquid sand grains be deposited in the groove of sand control guide wheel, rather than as be deposited between the blade guiding wheel holddown when causing it to restart in the past.Sand grains enters the upper level blade guiding wheel by compressing guide wheel 7 with the runner that compresses impeller 6 again when pump turns round, even there is the part sand grains to enter between the blade guiding wheel, owing to adopt technology of tungsten carbide button's lining in it, can greatly avoid its axial wearing and tearing.Well liquid owing to install the cemented carbide bearing additional in the pump head assembly, strengthens the wear-resisting property of bearing pair, thereby the sand grains that enters between bearing and the protective shaft sleeve is ground, to reduce gauge wear when above-mentioned sand-preventing process is handled the passage of back by pump head assembly 2.Well liquid enters and the joining pump discharge of electrical submersible sand-control pump thereupon, and last and oil pipe links and is transported to surface line.
Claims (2)
1, a kind of electrical submersible sand-control pump, it is made up of pump head assembly (2), axle (1), housing (4), locking assembly (5), bottom guide wheel (11), pump seat assembly (12), spline housing (13), pump head assembly (2), housing (4), pump seat assembly (12) are threaded successively, be welded with anti-down (3) between them, it is characterized in that: axle (1) is equipped with bearing sleeve with the position that pump head assembly (2), pump seat assembly (12) connect; Be equipped with successively on (1) at the axle of housing (4) inner chamber and compress impeller (6), compress guide wheel (7), sand control impeller assembly, sand control impeller assembly is made up of sand control guide wheel (8), sclerophyll wheel (9), hard guide wheel (10).
2, electrical submersible sand-control pump according to claim 1 is characterized in that described sand control guide wheel (8) is equipped with cemented carbide sand control guide wheel lining (15), and its internal diameter has cemented carbide axle sleeve (16), and sand control guide wheel (8) inside has groove, is used for sand setting; Sclerophyll wheel (9) is equipped with cemented carbide thrust washer (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075015 CN2737990Y (en) | 2004-10-30 | 2004-10-30 | Electric oil-submersible sandproof pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075015 CN2737990Y (en) | 2004-10-30 | 2004-10-30 | Electric oil-submersible sandproof pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2737990Y true CN2737990Y (en) | 2005-11-02 |
Family
ID=35347900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420075015 Expired - Fee Related CN2737990Y (en) | 2004-10-30 | 2004-10-30 | Electric oil-submersible sandproof pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2737990Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016032439A1 (en) * | 2014-08-26 | 2016-03-03 | Halliburton Energy Services, Inc. | Thrust washer and diffuser for use in a downhole electrical submersible pump |
-
2004
- 2004-10-30 CN CN 200420075015 patent/CN2737990Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016032439A1 (en) * | 2014-08-26 | 2016-03-03 | Halliburton Energy Services, Inc. | Thrust washer and diffuser for use in a downhole electrical submersible pump |
| US10465695B2 (en) | 2014-08-26 | 2019-11-05 | Halliburton Energy Services, Inc. | Thrust washer and diffuser for use in a downhole electrical submersible pump |
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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 |