Parallel type gravity oil-water separation unit

By designing a parallel gravity oil-water separation unit, and utilizing an inclined guide plate assembly and a non-powered gradient orifice flow distributor, the problems of low efficiency and limited processing capacity in downhole oil-water separation are solved, achieving efficient oil-water separation and flexible processing capabilities.

CN121407916BActive Publication Date: 2026-06-26BEIJING GUORONG CHUANGSHI TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING GUORONG CHUANGSHI TECHNOLOGY CO LTD
Filing Date
2025-12-24
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing downhole oil-water separation technologies have low separation efficiency and limited processing capacity, making it difficult to meet the production needs of high-yield oil wells.

Method used

The parallel gravity oil-water separation unit includes a gravity separation module and a liquid inlet distribution module stacked one on top of the other. It utilizes an inclined guide plate group and a non-powered gradient orifice flow distributor to achieve multi-stage parallel separation, thereby enhancing fluid residence time and separation effect.

Benefits of technology

It significantly improves oil-water separation efficiency, increases processing capacity to 80-200 m³/d, reduces operating costs, supports rapid maintenance, and adapts to the needs of oil wells with different production volumes.

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    Figure CN121407916B_ABST
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Abstract

The present application relates to the technical fields of oil exploitation downhole separation equipment, and particularly relates to a parallel type gravity oil-water separation unit, characterized by comprising gravity separation modules arranged in a stack, a liquid inlet distribution module is vertically inserted and arranged in the central part of the gravity separation module, the liquid inlet distribution module is arranged in the lifting sleeve, and the gravity separation module, the liquid inlet distribution module and the lifting sleeve are detachably connected through standardized interfaces. The present application combines multiple parallel gravity separation modules with a unique inclined guide plate group in the module, which greatly improves the oil-water separation efficiency, effectively prolongs the flow path and residence time of the oil-water mixture, and creates sufficient conditions for gravity stratification based on density difference. Compared with the traditional series type single-cavity separation device, the design makes the oil-water separation more thorough, and the oil content in the separated water can be less than 20 mg / L, and the separation efficiency is improved by orders of magnitude.
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