新疆含油气亚区非生物成因天然气远景地质储量估算及寻找大油气田方向的探讨

ABIOGENIC GAS IN XINJIANG OIL AND GAS AREA AND ITS RESOURCE ESTIMATION

板块构造理论的兴起为非生物成因天然气的成因类型、远景地质储量估算和油气源叠合富集的油气聚集带地质模式的建立,提供了科学的依据和大地构造背景。本文采用了类比法估算了新疆含油气亚区塔里木、准噶尔和吐鲁番盆地的非生物成因天然气的远景地质储量,并提出了屋脊式三度空间油气源叠合、富集的油气聚集带六种类型的地质模式,以及20个油气聚集带在塔里木、准噶尔和吐鲁番盆地的分布。这些油气聚集带可望找到一批大型、特大型和巨型油气田。

The development of the theory of plate tectonics gives a scientific bases and a tectonic background for the evolution and type of abiogenic gas, its resource estimation and the establishment of geological models for the oil and gas accumulation regions resulting from a stack of various petroleum sources. By means of geologic analogue, this paper gives an estimation of the resource of abiogenic gas in Tarim, Jungar and Turpan Basins in Xinjian Autonmous Region, presents 6 rooflike, 3 diwensional geoleogic models of oil and gas accumulation region resulting from a stack of their sources, and points out the distribution of 20 potential oil and gas accumulation zones in these basins. It is expected that some giant or Supergiant oil and gas fields may be found out in these zones.