Petroleum Geology of Wuerxun Sag in Hailaer Basin

Abstract

Abstract: Wuerxun sag is a second-rank structural unit with Lower Cretaceous in Beierhu depression in Harlaer basin, in which the source rocks are mainly distributed in its Nan-1 member, the reservoir rocks in its Nan-2 member and its well sealed regional cap rocks in Da-1 member, shaping a normal sequence's source-reservoir-caprock assemblage. The hydrocarbon accumulation-controlled factors analysis shows that the hydrocarbon distribution in this sag is controlled by effective hydrocarbon-generating center in plane and by major source rocks in vertical; the fan delta and sublacustrine fans around the fault belt are good reservoirs. Bayantala structural belt and Wudong area are the target areas for further exploration.

Key words: Hailaer basin, Wuerxun sag, petroleum geology, feature

CLC Number:

TE111

MA Zhong-zhen, PANG Xiong-qi, WEI Jian-she, LI Ming-gang. Petroleum Geology of Wuerxun Sag in Hailaer Basin[J]. Xinjiang Petroleum Geology, 2007, 28(3): 296-299.

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Petroleum Geology of Wuerxun Sag in Hailaer Basin

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