Mechanisms and optimal conditions of imbibition in naturally fractured low-permeability reservoir

Reservoir characteristics of micro-fractured ultra-low permeability reservoirs;

According to the geologic feature and waterflood performance of low-permeability fractured reservoir in Panguliang Chang-6 reservoir of Changqing Oil Field,a compound deep profile modification system composed of pre- crosslinked particle/waterflood fluid diversion agent/polymer gel was prepared.

An approach of developing low permeability fractured reservoirs by cyclic water injection;