Logging Evaluation Method for Pore Pressure of Shale Gas Reservoirs-Taking Fuling Area, Sichuan Basin as an Example

摘要

Unconventional oil and gas resources, especially shale gas resources have great potential for exploration anddevelopment in China. In Shale gas exploration and development process, reservoir pore pressure is a very important parameter,and the pore pressure prediction can improve the appraisal accuracy of project dessert. This paper analyzes severalformation pore pressure calculation methods based on logging data, and optimized the “Equivalent depth method”.The preliminary results show that this method can carry out the accurate evaluation on the abnormal high pressure of theshale gas reservoirs of Fuling area with high calculation precision and application potential.