岩性油气藏 ›› 2020, Vol. 32 ›› Issue (2): 4353.doi: 10.12108/yxyqc.20200205
杨帆1, 刘立峰1, 冉启全1, 孔金平1, 黄苏琦2, 黄昌武1
YANG Fan1, LIU Lifeng1, RAN Qiquan1, KONG Jinping1, HUANG Suqi2, HUANG Changwu1
摘要: 近年来,四川盆地磨溪地区灯四段的油气勘探取得了重大突破,为研究磨溪22井区灯四上亚段优质岩溶储层特征及分布规律,开展了岩心分析、物性测试、地震资料解释、测井分析和有利岩溶储层发育区预测等工作。结果表明:①岩溶储层的岩性主要为藻云岩类、砂屑云岩类和结晶云岩类,储集空间主要为溶蚀孔、溶洞和裂缝;②溶蚀作用包括同生期大气淡水的溶蚀作用、埋藏期深部热液溶蚀作用和有机酸的溶蚀作用、表生期大气淡水的溶蚀作用;③表生期的溶蚀作用控制了优质储层的分布,多发育于垂直渗流带附近和水平潜流带上部区域,平面上优质储层的分布受控于沉积相带和古地貌特征,以丘滩相和溶丘斜坡较好。该研究成果为磨溪地区下一步勘探指明了方向。
中图分类号:
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