摘要
准噶尔盆地是不同性质的原型盆地相叠加的复合型盆地,地层油气藏极其发育。该区主要发育地层超覆、地层削截不整合、下切河道砂体及基岩潜山等4种地层油气藏,具有类型多、规模大、发育层系多、时空展布受古地貌控制的特点。多套优质烃源岩、不整合输导能力、优质储集相带及多期次构造运动是准噶尔盆地地层油气藏主控因素。该区地层油气藏可以划分为近源自生、远源混生2种成藏模式。盆地周缘隆起区及盆内隆起区是寻找大型地层油气藏的2个有利方向。
Junggar basin is a composite basin superimposed by different kinds of proto-type basins with well developed stratigraphic reservoirs. Four types of stratigraphie reservoirs mainly exist in this area such as stratigraphie overlap reservoir, truncated stratipraphie unconformity reservoir, downeutting channel sand reservoir and basement buried hill reservoir, which are characterized by various types, large scale, multi-strata and paleogeomorphology-eontrolled time-space distribution. The major controlling factors for these stratigraphie reservoirs in this basin include multiple high-quality source rocks, unconformity transporting capacity, high quality reservoir belts and multistage tectonic movements. The stratigraphie reservoirs are classified into two reservoir models. One is ＂near source and selfgeneration＂ and the other is ＂far source and mixed genration＂. It is concluded that the uplifts in inner and surrounding Junggar basin are favorable exploration targets to find out large-scale stratigraphic reservoirs.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2008年第2期147-151,共5页
Xinjiang Petroleum Geology
关键词
准噶尔盆地
地层油气藏
主控因素
成藏模式
勘探方向
Junggar basin
stratigraphie reservoir, major controlling factors
reservoir model
exploration direction
target
