新疆三塘湖盆地构造演化与油气系统

Tectonic Evolution and Petroleum Systems of Santanghu Basin, Xinjiang,

三塘湖盆地的发展演化受不同时期板块构造背景的制约，形成碰撞前陆盆地、周缘前陆盆地及类周缘前陆盆地等原型盆地，相互叠加和改造，形成多种含油气系统。基于盆地构造演化特征和烃源岩、储集岩和盖层特征，划分出三类含油气系统，即Ｃ２＋３－Ｐ１（·）含油气系统、Ｐ２－Ｐ２（·）含油气系统、Ｊ１＋２－Ｊ２＋３（！）含油气系统，并分析了每类含油气系统的基本特征和可信度。

The development and evolution of the Santanghu basin were controlled by the plate-tectonic background in different periods, leading to the formation of three types of proto-basins, namely, collision foreland basin, peripheral foreland basin and regenerated foreland basin. The superimposition and imprinting of the latter basin(s) on the former have given rise to the formation of a variety of petroleum systems. On the basis of the characteristics of tectonic evolution, source rocks, and reservoir and cap rocks of the basin, three types of petroleum systems have been recognized, and the principal characteristics and level of confidence of each of the systems are analyzed.