Review on Seepage Mechanics and Development Techniques of Tight Oil Reservoir

Since there is more and more attention to the unconventional energy development,the methods to develop the tight oil become a topic concern of scholars. Based on the Canadian tight D reservoir studies and the literature research,the difference between the tight oil and the conventional oil were proposed,the tight oil microscopic pore structure and percolation mechanism were analyzed,and the methods of tight oil reservoir enhancing oil recovery and energy supplement were described compsehensively,which included the multi-stage horizontal well fracturing technology,the volume fracturing technology,the CO2miscible flooding and WAG technology. In addition,the precautions during the tight reservoir development process and the future development direction were also summed up. A reference value has been for the tight oil reservoir development of China.