Abstract:Because of higher energy of lake wave and ru- nning water medium in barrier-bar-developed zone and eroded clastic sediments for a long period,the barrier bar sand body has excellent oil/gas accumulation characters,which is one of important targets of reservoir exploration but difficult to be identified.The rhythm feature of logging curves provided direct basis for identification of sand body in different developed parts,the composition of rhythm feature also further reflected the changes of lakeshore and whole process that the sand body generated,developed and died out.After correlation of the structural feature of current barrier bar sand body and using the characters of logging curves of barrier bar sand body,the paper first presented that the sand body in Guangli-Bamianhe region is palaeo-barrier bar sand body and firstly using time-frequency analysis technique and sedimentary facies analysis technique for identification of palaeo-barrier bar sand body,that not only verified the existence of barrier bar sand body in the region,but also found barrier bar sand body in Chexi depression.The Guangli-Bamianhe oilfield belongs a hundred million ton oilfield and the reservoir having palaeo-barrier bar sand body type,which has active meaning for expanding types of oil/gas exploration in Jiyang Depression.
王金铎. 济阳拗陷堡坝砂体的识别及其地球物理特征[J]. 石油地球物理勘探, 2004, 39(6): 666-671.
Wang Jin-duo. Identification of barrier bar sand body in Jiyang Depression and its geophysical feature. OGP, 2004, 39(6): 666-671.