Research on Surfactant-Based Pressure-Reducing and Injection-Enhancing System for Low-Permeability Reservoirs in Yanchang Oilfield
Low permeability reservoirs in Yanchang Oilfield encounter substantial water injection challenges,resulting in low recovery and high costs.This study systematically examines the geological characteristics,fluid properties,and under-injection causes of these reservoirs.It proposes a surfactant system combining non-ionic and petroleum sulfonate to reduce injection pressure and enhance recovery rates,offering scientific and technical support for efficient development.
Yanchang Oilfieldlow-permeability reservoirSurfactantPressure-reducing and injection-enhancing
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维普
