关键词: 库车前陆盆地, 油气资源评价, 刻度区, 资源量, 油气分布, 油气勘探

Abstract:

The Triassic-Jurassic source rocks are widely developed in Kuqa Foreland Basin and have sufficient oil and gas supplies. The thick gyp-salt rock of the Tertiary widely developed provided the favorable sealing conditions. The high-quality sandstone reservoir of the Tertiary-Cretaceous Bashijiqike Formation is well developed,and the large-scale structural traps forming several structural belts are distributed extensively. The conditions for forming oil and gas reservoirs are excellent. So the basin possesses of the petroleum geological conditions to form medium or large-scale oil and gas fields. In order to make a good foundation for re-evaluating the resource potential,the studies on the key influencing factors for resource assessment,such as confirmation of hydrocarbon production rate,the division of source rock by strata and lithology,resumption of the primary basin and the study of Kelasu calibrated unit,were strengthened in the 3rd petroleum resource assessment implemented by the PetroChina Company Limited. The calculation of the resource with several methods,such as basin model method,play assessment method,strata assessment method and statistics as well as adopting the Delphi integrative evaluation method shows that Kuqa Foreland Basin is abundant for oil and gas resources and enjoys the priority in gas resource.

Key words: Kuqa Foreland Basin, oil and gas resource assessment, calibrated unit, resources, oil and gas distribution, oil and gas exploration