THEORY AND APPARATUS FOR TESTING LOW-PERMEABILITY OF ROCKS IN LABORATORY
低渗透岩石实验理论及装置

In order to determine the low permeability of rocks both rapidly and reliably in laboratory, the rigorous analytical solutions for various kinds of laboratory permeability tests are derived. A versatile laboratory permeability testing system is also developed. This system can implement constant-head, constant flow-rate and transient-pulse permeability tests of specimen under high confining and pore pressures. Testing results demonstrate the effectiveness of both the rigorous analytical solutions and the testing apparatus.