Author

Zheng Liu

2 papers indexed here

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Open access Oct 2026

Evaluation of Moderate Collapse Characteristics and Optimization of Drilling Fluid Density for Horizontal Wells in Deepwater Gas Fields

Conventional drilling fluid density design based on the onset of yielding may not adequately balance wellbore stability against the available mud-weight window in deepwater sandstone–mudstone interbeds, where collapse and lost-circulation risks coexist. Using three-pressure profiles, actual mud weights, and operational...

Cheng-Long Li, Xuan-Hua Zhu, Hao-Wei Feng et al. · Processes · 0 citations

Open access Oct 2026

Development of a Solids-Free High-Density Oil-Based Drill-In Fluid with Enhanced Interfacial Stability and Reservoir Protection

To mitigate weighting-agent settlement, reservoir pore-throat plugging, and water-sensitivity damage during deep high-temperature drilling, a solids-free high-density oil-based drill-in fluid was developed using synthetic base oil as the continuous phase and potassium formate brine as the dispersed phase. Within the fo...

Ru-Shan Dai, Pan-Hong Yu, Long-Jing Tang et al. · Processes · 0 citations