下伏源-断-盖配置向浅层输导油气有利部位预测方法及其应用OA

In order to study the distribution law of shallow oil and gas above source rock area in hydrocarbon bearing basins,based on the research of mechanism and favorable locations of underlying source-fault-caprock configura-tion transporting oil and gas to shallow reservoirs,favorable areas for oil and gas supply from source rocks to trans-port faults,favorable areas for oil and gas transport along transport faults and unseal locations of the regional cap-rocks with oil and gas leakage upward are determined.The 3 determined favorable oil and gas transport locations are superimposed to form a set of methods for predicting favorable locations of underlying source-fault-caprock configu-ration transporting oil and gas to shallow reservoirs,which is applied to the prediction of favorable locations of oil and gas accumulation in the traps of shallow Guantao Formation in Gangdong Fault.The results show that the cur-rent discovered oil and gas along Gangdong Fault are mainly distributed near middle part of Gangdong Fault,which is consistent with the predicted favorable areas of underlying source-fault-caprock configuration transporting oil and gas to shallow Guantao Formation along Gangdong Fault using this method.The research provides a basis for pre-dicting shallow hydrocarbon traps formed by hydrocarbon transport from underlying source-fault-caprock configura-tion to shallow reservoirs.