Genesis and Significance of High Lime Sandstone in Toutunhe Formation, Shinan-21 Wellblock, Junggar Basin

Abstract

Abstract: Based on the macro- and micro-distribution characteristics of high lime sandstone of Jurassic Toutunhe formation in Shinan-21 Wellblock, Shinan oilfield, Junggar basin, this paper presents the origin and significance of the high lime sandstone, and points out that its distinct isochronous and isopath properties may be regarded as an important horizon marker for subdivision and correlation of J2t2 sand layer of Toutunhe formation.The subdivision concept proposed herein could be as a guide for detailed reservoir characterization and further development scheme preparation of this oilfield.

Key words: Junggar basin, Jurassic, sandstone, genesis, stratigraphic classification

CLC Number:

TE112.21

LIU De-guang, LING Yun, YANG Zhao, WANG Gui-jun. Genesis and Significance of High Lime Sandstone in Toutunhe Formation, Shinan-21 Wellblock, Junggar Basin[J]. Xinjiang Petroleum Geology, 2005, 26(2): 170-171.

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Genesis and Significance of High Lime Sandstone in Toutunhe Formation, Shinan-21 Wellblock, Junggar Basin

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