GEOCHEMICAL CHARACTERISTICS OF HYDROCARBONS IN YAKELA STRUCTURE OF SHAYA UPLIFT IN NORTHERN TARIM BASIN AND THEIR GENERATION, MIGRATION AND ACCUMULATION

The geochemical characteristics,and the generation,migration and accumulation of hydrocarbons in Yakela structure of northern Tarim basin were systematically discussed with abundant data. Based on the analysis of the history of structural evolution, the auth ors proposed a model for hydrocarbon generation, migration and accumulation in the region by full use of the geochemical characteristics.