The Coal-Bed Mathane Accumulation Factors and Explorative Target in Eastern Junggar Basin

Abstract

Abstract: Based on the latest information, the macro-distribution, coal rank, coal quality and gas-bearing nature of Jurassic coals in eastern Junggar basin are analyzed comprehensively. The main controlling factors of coal-bed methane accumulation in this area are clarified as coal-bed burial depth, coal rank, coal quality and preservation condition, and the most important ones are the depth of weathered zone of methane and coal rank. Consequently, the enriched areas and horizons of coal-bed methane in eastern Junggar basin are identified, namely Bogeda piedmont, Badaowan formation in Jimusaer sag and coal bed of Xishanyao formation in Wutongwozi sag. Considering the factor of depth, the Bogeda piedmont will be the main target for exploration in this area in the future.

Key words: eastern Junggar basin, coal-bed methane, main controlling factor, methane-weathered zone depth, coal rank

CLC Number:

TE111

LIU De-guang, LUO Xiao-jing, WAN Min, GONG Hong-yan. The Coal-Bed Mathane Accumulation Factors and Explorative Target in Eastern Junggar Basin[J]. Xinjiang Petroleum Geology, 2010, 31(4): 349-351.

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The Coal-Bed Mathane Accumulation Factors and Explorative Target in Eastern Junggar Basin

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