A WAY TO FIND OIL IN TARIM BASIN BY STRUCTURAL ANALYSIS OF CHINA SEDIMENTARY BASINS

In a vievv of exploratory practice,it is provedthat generally the midaestage of a half-graben evolution should be considered as the peak oil generation,while the developing period of platform strutural layer in a petroliferous basin as the optimuln stage of gas generation,Tarim basin is a typical petroliferous basin with a multi-layered structure consisted of platform,downfault and depression,the developing stage of the platform structural layer is the peak generation, but a higher ratio of condensate oil in the basin than those in he Sichuan andordos Bsans,due to rather lower value of haet flow for the Tarim Basini and the developing stage of the half-graben is the peak oil generation, In vievv of the abovementioned geological pattern,the author suggests that a new seismic method(VSP)be applied to carry out seismic survey in the Mz-Efault-depressions of the Kuche and the SW Tarim in order to seek new structural highs for future petroleum exploration in the basin.