一种油基钻井液用复合堵漏剂及其制备方法
By combining composite plugging agents, the problem of poor compatibility between oil-based drilling fluid plugging materials and oil-based drilling fluids is solved, achieving efficient plugging and improved pressure resistance, adapting to different formation characteristics, reducing leakage and extending plugging time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIAHUA SPECIAL CEMENT
- Filing Date
- 2023-10-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing oil-based drilling fluid plugging materials have poor compatibility with oil-based drilling fluids, resulting in poor plugging effect, low pressure resistance, and serious leakage in unconventional oil and gas resource exploration and development, leading to economic losses and reservoir damage.
A composite sealant consisting of oil-absorbing and expanding materials, elastic fillers, rigid bridging materials, and tough bridging materials is used to form a three-dimensional network-like sealing layer through a reasonable combination of particle size distribution and mass percentage, thereby enhancing the sealing effect and pressure resistance.
It improves the leak prevention and plugging performance of oil-based drilling fluids, significantly enhances the plugging effect, can remain stable for a long time at high temperatures, adapts to pores and micro-cracks of different sizes, reduces leakage, and shortens plugging time.
Smart Images
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