岩性油气藏 ›› 2015, Vol. 27 ›› Issue (1): 3238.doi: 10.3969/j.issn.1673-8926.2015.01.005
庞军刚1,王桂成1,石 勇2,李 赛1,朱鹏辉1
PANG Jungang1, WANG Guicheng1, SHI Yong2, LI Sai1, ZHU Penghui1
摘要:
近年来,鄂尔多斯盆地石油勘探在延长组下组合长 9 油层组获得了新发现,但对该致密油藏的研究仍处于起步阶段,认识的不足严重制约了致密油藏勘探开发。 根据钻井、测井及分析测试资料,对王洼子地区长 9 致密砂岩油藏成藏条件进行了分析,探讨了油藏富集规律及其勘探潜力。 研究表明,该区长 9 油层组具有较好的成藏条件,长 91 和长 93 已见多口高产井,石油勘探已有较大的突破。 烃源岩、沉积微相、优质砂体、鼻状隆起等几个因素的优化匹配是长 9 致密砂岩油藏勘探能够取得突破的关键。 据综合分析,洼 4 井区及洼 14—洼 11 井区成藏条件较好,为下一步的有利勘探区。
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