以油基泥浆资源化利用技术（LRET）对川南页岩气废弃油基钻井液进行再利用研究。结果表明，LRET回收浆体相互混合后能够配伍，无絮凝和成团现象，但高温高压（HTHP）失水量偏大，热滚后破乳电压降低明显；LRET回收浆复配加重后、LRET回收浆与新浆复配加重后均能够配伍，无絮凝和成团现象，但沉降稳定性均变差，需要加入一定量的乳化剂、润湿剂等处理剂来提高体系稳定性。

Spent oil-based drilling fluid from shale gas exploitation in China's South Sichuan region is treated by LRET technology.The results show that slurries recovered by LRET can be compatible each other without flocculation and agglomeration, but filter loss at high temperature and high pressure is too large and the demulsification voltage decreases significantly after hot rolling.The mixtures of weighted LRET recycled slurry are compatible.The same results are found in the mixtures of LRET recycled slurry with new oil-base drilling fluid after adding with weighting materials, without flocculation or agglomeration.However, the sedimentation stability of the mixtures deteriorates.It is necessary to add a certain amount of emulsifier, wetting agent and other treatment agents to improve the stability of the system.