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Oil well separation equipment

A technology for separating equipment and oil wells, applied in wellbore/well components, production fluids, earth-moving drilling, etc., can solve the problems of easy blockage, thick filter layer, short life, etc., achieve fast mud sand removal, high sand control efficiency, and use long life effect

Inactive Publication Date: 2019-01-01
SHAANXI XINGCHEN PETROLEUM TECH
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AI Technical Summary

Problems solved by technology

[0002] At present, domestic oil extraction equipment adopts pumping units, and sand filter screens are installed at the bottom of the pumping units to separate oil and sand. This structure is composed of double-layer braided nets specially used in the petroleum industry, which are installed in the middle of the interlayer of the inner and outer pipes. It has the disadvantages of thick filter layer, easy to block, short service life, etc.

Method used

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  • Oil well separation equipment

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Embodiment Construction

[0007] The present invention will be further described below in conjunction with the accompanying drawings.

[0008] see figure 1 , the present invention is composed of: porous inner tube 1, inner support frame 2, expanded stainless steel mesh 3 and outer protective tube 4, the outer layer of oil well separation equipment is outer protective tube 4, the inner layer is porous inner tube 1, outer protective tube 4 It is a porous metal tube, and there is an interlayer between the outer protection tube 4 and the porous inner tube 1. The interlayer is built with stainless steel expanded mesh 3 and inner support frame 2, and the cylinder wall of the stainless steel expanded mesh 3 is evenly covered with rectangular pores. After computerized hole drainage, it is corroded by synthetic acid, which has good pressure resistance, fast mud and sand removal, small oil flow resistance, and large liquid extraction volume. The supporting frame 2 is a metal bracket for supporting the expanded ...

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Abstract

The invention discloses oil well separation equipment. The equipment includes a porous inner tube and a porous metal external protective tube; a stainless-steel sheet mesh and an inner supporting rackare arranged between the porous inner tube and the porous metal external protective tube; and the cylinder wall of the stainless-steel sheet mesh is uniformly distributed with rectangular micropores.high precision of oil-sand separating can be realized; the equipment has high sand control efficiency, and can separate fine sand, silt and mud sand gushed from different geological structures from oil flows with high purity; the equipment has long service life and strong acid and alkali resistance and high temperature resistance and is smooth, paraffin-free and blockage-free, and the service life of the equipment can be enhanced from 3-4 months to 8-10 months; and the equipment also has characteristics of being good in compressive performance, fast in mud sand elimination, small in oil flowresistance, large in liquid production and high in working efficiency.

Description

technical field [0001] The invention relates to an oil well separation device applied in the field of oil exploitation. Background technique [0002] At present, domestic oil extraction equipment adopts pumping units, and sand filter screens are installed at the bottom of the pumping units to separate oil and sand. This structure is composed of double-layer braided nets specially used in the petroleum industry, which are installed in the middle of the interlayer of the inner and outer pipes. However, there are disadvantages such as thick filter layer, easy to block, and short service life. Contents of the invention [0003] The purpose of the present invention is to solve the high precision of oil sand separation in the field of oil exploitation, and provide an oil well separation device with high sand control efficiency and long service life. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: comprising a porous inn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/34
CPCE21B43/34
Inventor 程世英
Owner SHAANXI XINGCHEN PETROLEUM TECH
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