摘要
It is a difficult problem in the field of exploration and development of oil & gas that recognizes and studies of fractured reservoir with conventional well logging.The existence of fissure will impact on stratum’s resistivity,therefore,in the absence of imaging log information,there are some difference between the calculated resistivity by the sonic porosity using the regional relation of rock and electricity,and the measured formation resistivity curve.This difference can be used to identify the fissure of stratum.This method has obtained good results in fissure identification of the study area.