Major Controlling Factors and Exploration Directions of Stratigraphic Reservoirsin Junggar Basin

Abstract

Abstract: Junggar basin is a composite basin superimposed by different kinds of proto-type basins with well developed stratigraphic reservoirs. Four types of stratigraphic reservoirs mainly exist in this area such as stratigraphic overlap reservoir, truncated stratipraphic unconformity reservoir, downcutting channel sand reservoir and basement buried hill reservoir, which are characterized by various types, large scale, multi-strata and paleogeomorphology-controlled time-space distribution. The major controlling factors for these stratigraphic reservoirs in this basin include multiple high-quality source rocks, unconformity transporting capacity, high quality reservoir belts and multistage tectonic movements. The stratigraphic 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.

Key words: Junggar basin, stratigraphic reservoir, major controlling factors, reservoir model, exploration direction, target

CLC Number:

TE112.422

LIU Chuan-hu, ZHUANG Wen-shan. Major Controlling Factors and Exploration Directions of Stratigraphic Reservoirsin Junggar Basin[J]. Xinjiang Petroleum Geology, 2008, 29(2): 147-151.

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