Application of High-Strength, High-Temperature-Resistant, and Degradable Inorganic Gel for Preferential Flow Path Plugging in Cyclic Steam Stimulation of Bohai N Extra-Heavy Oil Reservoir
The Bohai N extra-heavy oil reservoir suffers from severe inter-well steam channeling, high water cut, and high water recovery rate during cyclic steam stimulation (CSS), which is primarily caused by preferential flow paths formed by interchannel microfacies (low-quality reservoirs with permeability of 200–500 mD and w...