吐哈盆地致密砂岩气勘探前景与关键问题讨论

Tuha Oil & Gas(2010)

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Abstract
吐哈盆地北部山前带柯柯亚地区的巴喀下侏罗统气藏具有储层致密、基质孔隙储气、气层厚度大、连片广、"甜点"与构造裂缝和沉积微相密切相关等致密砂岩气典型特征。吐哈聚煤盆地烃源岩条件优越,发育与煤系源岩间互的大型沉积砂体,台北凹陷主体持续沉降,烃源岩持续演化排烃,有利于源内大型致密砂岩气藏的形成。进一步总结认识致密砂岩气高产富集规律,整体评价全盆地致密砂岩气资源潜力,攻关突破"甜点"预测描述技术,是下一步勘探需要解决的关键问题。
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Key words
natural gas,Kekeya,Tuha basin,north mountain front,tight-gas-reservoir
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