Progress of Logging Evaluation on Shale Gas Reservoirs

Logging evaluation took an important role in shale gas exploration and development,compared with the conventional reservoir,the logging evaluation on shale gas reservoir was more difficult.Based on literature researches and investigations,the present situation of shale gas exploration,the geological and logging features of shale gas reservoirs were summarized,and the logging series used in the shale gas reservoirs was introduced.The task of logging evaluation on shale gas reservoirs included the mineral composition evaluation,the pore-permeability parameter evaluation,geochemical parameter evaluation,gas content evaluation,rock mechanical parameter calculation and the fracture recognition.The method of logging interpretation and evaluation on shale gas reservoirs are provided,some suggestions and understanding of the logging evaluation on the shale gas reservoirs are put forward.