Method for producing pressure filtration improved water using pressure filtration water from drilling and its application

By efficiently treating and improving drilling filtration water, high-performance improved filtration water is produced, solving the problem of unstable drilling fluid performance, realizing the effective utilization of drilling water resources and environmental protection, and reducing drilling operation costs.

CN120987494BActive Publication Date: 2026-06-02HEBEI BANGYE ENVIRONMENTAL PROTECTION TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEBEI BANGYE ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-07-31
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing technologies have failed to effectively treat drilling pressure water, resulting in insufficient resource utilization and unstable performance of the prepared drilling fluid, which cannot meet the requirements of drilling operations.

Method used

Drilling filter water is treated using steps such as high-efficiency sedimentation, sand filtration, activated carbon filtration, ion exchange, and pH adjustment to prepare improved filter water. Contaminants are removed by high-efficiency ion exchange resin and zeolite filtration, and drilling fluid compatible stabilizers are added to adjust the pH value, resulting in a high-performance drilling fluid.

Benefits of technology

It enables the resource utilization of drilling filter water, reduces environmental pollution and water consumption, and produces drilling fluid with stable performance to meet the needs of drilling projects, thereby reducing costs and improving drilling efficiency.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This invention discloses a method for producing improved filter-filtered water from drilling filtration water and its application, belonging to the field of oil and gas drilling engineering technology. The method includes: pretreatment of the drilling filtration water: introducing the drilling filtration water into a high-efficiency sedimentation tank, adding flocculants for natural sedimentation, followed by sand filtration and activated carbon filtration; water purification and adjustment: adding a high-efficiency ion exchanger and mixing to obtain a precipitate, filtering to obtain the filtrate, passing the filtrate through a strongly acidic cation exchange resin column, then through zeolite adsorption filtration, then adding an acid-base adjuster to adjust the pH of the purified water to 7-10, finally adding a high-efficiency drilling fluid compatible stabilizer, and mixing evenly in a mixing tank to obtain the improved filter-filtered water; and using the improved filter-filtered water to prepare drilling fluid. This invention realizes the resource utilization of drilling filtration water, reduces water resource consumption and environmental pollution in drilling operations, and simultaneously prepares a drilling fluid with stable performance that meets various requirements of drilling engineering.
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