北部山前带柯柯亚气藏综合评价及建议

Tuha Oil & Gas(2011)

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Abstract
通过对柯柯亚下侏罗统气藏、储层特征分析,认为J1b气藏受构造控制,带油环;有利储集相带为辫状河三角洲前缘水下分流河道和河口坝砂体,在有效含气范围内,富集高产与溶蚀粒内孔、粒间孔的发育程度密切相关,裂缝对改善储层渗流条件起到积极作用。受高阻煤层封挡条件的限制,能有效封挡气柱高度最大在180m左右。针对致密砂岩气层识别难,提出"看井径、重声波、轻电阻率"的三要素法。
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Key words
Tuha basin,sedimentary facies,cap rock,Kekeya structural belt
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