Author

Tai-Feng Zhang

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Sep 2026

Self-Assembling Low-Viscosity-Increment Zwitterionic Polymer for Rheological Control in High-Temperature and High-Salinity Water-Based Drilling Fluids

Under harsh high-temperature and high-salinity (HTHS) conditions, water-based drilling fluids (WBDFs) face a critical technical bottleneck in rheological control: the difficulty in simultaneously achieving yield point (YP) and gel strength enhancement without excessive viscosity increase while preventing the deterior...

Zhen-Hang Yuan, Xian-Bin Huang, Zhong-Yi Wang et al. · SPE Journal · 0 citations

Open access Sep 2026

Development of a High-Temperature and High-Salinity Resistant Branched Polymer for Controlling Fluid Loss of Water-Based Drilling Fluids

Conventional fluid-loss reducers lack thermal and salt resistance and exhibit a pronounced viscosity-enhancing effect in bentonite-based drilling fluids. These issues will cause severe problems during drilling operations. Herein, a branched fluid-loss reducer, BPJ, was synthesized using BPEI1800 as the branching core a...

Li-Li Yan, Ren Wang, Kai-He Lv et al. · Gels · 0 citations

Aug 2026

High-Temperature-Resistant Long-Term Stable Clay-Free Water-Based Drilling Fluids for Deep Well Drilling and Reservoir Protection

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