塔里木盆地玉北1构造带油气微生物勘查

Petroleum Geology and Engineering(2017)

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Abstract
采集塔里木盆地玉北1构造带油气区及背景区上方地袁土壤样品334件,采用平板菌落计数法对样品中油气指示微生物数量进行检测,结合构造、储层和钻井等信息,研究该区油气微生物异常分布情况.结果显示,在玉北1构造带上方有5个微生物异常区,3个Ⅰ级异常区沿断裂带分布,2个Ⅱ级异常区位于断裂带边缘;玉北1-2X井区微生物数量多,异常面积大,为玉北1构造带最有利的油气有利富集区;玉北1-3H井区和玉北1-6H井区微生物异常较小,亦存在一定的勘探前景;2个Ⅱ级异常区面积小,对应区带勘探潜力较小.
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