A method and system for solid-liquid separation of high water-content water-based drilling solid waste
This invention utilizes physical methods of micro-vibration, micro-adsorption, and dynamic filtration to treat water-based drilling solid waste with high water content, achieving efficient solid-liquid separation. The clarified liquid can be directly reused, solving the problem of difficult solid waste treatment in existing technologies. It is applicable to solid waste with various water contents.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA NAT PETROLEUM CORP
- Filing Date
- 2023-04-26
- Publication Date
- 2026-05-26
AI Technical Summary
Existing technologies are difficult to effectively treat water-based drilling solid waste with high water content, especially the solid-liquid separation of water-based drilling solid waste with high water content is difficult, and existing methods often increase the amount of solid waste or affect the reuse of the extracted fluid.
A purely physical method is adopted, which involves micro-vibration particle agglomeration, micro-adsorption solid-liquid separation, and dynamic filtration. The micro-vibration unit achieves ultrafine particle agglomeration, the micro-adsorption unit performs preliminary separation, and the dynamic filtration unit achieves fine filtration, resulting in a clear liquid that can be used to re-mix drilling fluid.
It achieves efficient solid-liquid separation, and the treated clear liquid can be directly reused without increasing the total amount of pollutants. It is suitable for solid waste with various water contents, especially water-based drilling solid waste with high water content. The separation effect is significant, with the solid content in the clear liquid being less than 8% and the solid water content being less than 55%.
Smart Images
Figure CN118846648B_ABST