云南区域地质特征与油气勘探领域

REGIONAL STRUCTURAL CHARACTERISTICS AND HYDROCARBON EXPLORATION PROVINCES OF YUNNAN

云南位于两种迥然不同的大地构造单元交汇处,各个时代的地层均很发育、岩石类型多样、地质构造复杂;以金沙江—红河断裂为界,形成滇东、滇西截然不同的地质—地貌景观。古生代稳定海相沉积区、中生代陆相大中型盆地区、新生代小型盆地区为本省油气勘探领域;滇东的楚雄盆地存在三套生油岩系,且与储盖层组合配套,圈闭条件好,为油气勘探的重点盆地。

Yunnan is located on the juncture of two tectonic units, where the layers of every geological age ate well developed. there are various types of rocks and complicated structures. Seperated by Jinshajiang River—Red River Fault,the East Yunnan (Dian Dong) and West Yunnan(Dian Xi) are completely different both geologically and geomorphologically. The Paleozoic stable marine depositional areas, the Mesozoic continental me dium—large hasinal areas and the Cenozoic, small—scaled hasinal areas are the hydrocarbon exploration targets of Yunnan Province. Among them, the Couxiong Basin of East Yunnan is the most important basin for exploration, East three sets of source rocks and the overlying reservoir and cap rocks are found.