准噶尔盆地东部煤层气成藏因素及勘探目标  

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

作　　者：刘得光[1] 罗晓静[1] 万敏[1] 龚红燕[1] 

机构地区：[1]中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依834000

出　　处：《新疆石油地质》2010年第4期349-351,共3页Xinjiang Petroleum Geology

摘　　要：分析了准噶尔盆地东部地区侏罗系煤岩的宏观分布、煤阶、煤质和含气性,指出该区煤层气成藏的主控因素为煤层埋深、煤阶、煤质以及保存条件,其中甲烷风化带深度和煤阶是二个关键因素。准东地区煤层气富集区分别为博格达山前、吉木萨尔凹陷八道湾组和梧桐窝子凹陷西山窑组煤层,博格达山前是准东地区煤层气勘探的主要目标。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.

关 键 词：准噶尔盆地 东部 煤层气 主控因素 甲烷凤化带深度 煤阶 

分 类 号：TE111[石油与天然气工程—油气勘探]