Lost circulation in fractured formations remains a critical challenge in oil and gas drilling, particularly under high-temperature and high-pressure (HTHP) conditions. For this study, we systematically evaluated the physicochemical properties of commonly used bridging materials and optimized rigid, flexible, and fibr...
Jing-Bing Yang, Ying-Rui Bai, Jin-Sheng Sun et al.· SPE Journal· 0 citations
Global oil and gas exploration is increasingly moving towards deeper formations. However, under the complex and harsh conditions of ultra-high temperature, high pressure, and salt-gypsum layers, the performance of conventional water-based drilling fluids deteriorates significantly, leading to frequent drilling incide...
Yuan-Wei Sun, Jin-Sheng Sun, Kai-He Lv et al.· SPE Asia Pacific Oil & G...· 0 citations
Under high-temperature and high-pressure conditions, drilling fluids with long-term stability and low formation damage are one of the key technologies for ensuring safe and efficient drilling in deep reservoirs and achieving higher oil and gas production. In this study, a zwitterionic polymer (SPG) with high-temperat...
Tai-Feng Zhang, Jin-Sheng Sun, Kai-He Lv et al.· Energy & Fuels· 0 citations
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