The oil-control effect of the paleaouplift in the early Hercynian period in Tarim Basin

This paper discusses the oil-control effect of the paleaouplift by analyzing structural evolution feature of the palaeouplift early Hercynian period in Tarim Basin.According to the study,the palaeouplift not only shows the hydrocarbon migration direction and slows down the premature of hydrocarbon source,but also causes the formation of karst reservoir and controlls the distribution of the Donghe sand.The palaeouplift also promotes the development of conductivity fracture and forms many structural-dominant traps.The authors believes that the palaeouplift of the early Hercy possesses the basic condition for the formation of large and medium reservoirs and can be the important target for seeking large and medium reservoirs in Tarim Basin.