青平川油田关庄地区延长组油气富集规律

Journal of Xi'an University of Science and Technology(2015)

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Abstract
鄂尔多斯盆地东缘延长组剥蚀区石油成藏条件研究程度较低,石油勘探一直未取得较大突破.为进一步研究延长组剥蚀区石油富集规律,以青平川油田关庄地区为例,通过沉积、储层、盖层的系统研究和对其构造、裂缝发育特征的探索,总结了该区延长组油藏的分布特征和规律,分析了其油气富集成藏的主控因素.结果表明:青平川油田关庄地区延长组主要为岩性油藏和构造-岩性油藏.沉积微相控制下的优质储层发育对油藏分布具有重要的控制作用,而盖层发育对延长组油藏特别是长4+51油藏的保存至关重要,构造、微裂缝对油井高产起到了积极作用.
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Key words
Ordos Basin,Qingpingchuan Oilfield,Yanchang formation,enrichment regularity
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