The Comprehensive Geologic Evaluation Of Chen 163 Block In Chenjiazhuang Oilfield

Chen 163 block of Chenjiazhuang oilfield is located between the Zhanhua sag and Dongying sag which are the two large oil generation sags of Jiyang Depression.According to the oil and gas migration law from low to high,the block is the long-term direction of hydrocarbon migration.But during the actual drilling many wells did not encounter the oil formation,which is inconsistent with the expected.Academic knowledge of the integrated use of geological,geophysical logging,petrophysics,rock mechanics and reservoir engineering,combination of multi subjects,to Chen 163 block carried out stratigraphic correlation,structural features,sedimentary system and sedimentary facies research,the block oil and gas reservoir forming conditions,oil and gas migration,accumulation of dominant migration system the controlling factors of comprehensive analysis and study.Clear the favorable oil zones,to evaluate the target region.Sedimentation analysis,reservoir prediction research shows that Chen 163 block reservoir sand body is strictly controlled by sedimentary facies belt of sand control,mainly distributed in the area of South East,in north west direction,sedimentary facies channel,crevasse dam mainly,overbank sand body development,is the main body of the deposition area.Chen 163 block,migration and accumulation of oil and gas were the typical "T-S" oil and gas accumulation mode.Through comprehensive analysis and research,demonstrates the potential of 6 traps,designs 6 wells,puts forward prediction of new oil area of 3.85km2 and prediction of petroleum geological reserves of 637.86 × 10~4 t.