有机相在非常规油气储层评价中的应用——以束鹿凹陷富有机质泥灰岩储层为例

被引:12
作者
李庆 [1 ,2 ]
姜在兴 [3 ]
由雪莲 [4 ]
赵贤正 [5 ]
张锐锋 [6 ]
机构
[1] 中国石油大学(北京)地球科学学院
[2] 中国石油大学(北京)油气资源与探测国家重点实验室
[3] 中国地质大学(北京)能源学院
[4] 中国地质大学(北京)海洋学院
[5] 中国石油大港油田分公司
[6] 中国石油华北油田分公司勘探部
关键词
有机相; 非常规油气; 储层评价; 页岩油气; 泥灰岩; 束鹿凹陷;
D O I
暂无
中图分类号
P618.13 [石油、天然气];
学科分类号
070403 [天体物理学];
摘要
为分析有机相对非常规油气储层的影响并对储层进行评价,以束鹿凹陷富有机质泥灰岩储层为例,根据岩石热解参数、干酪根元素组成和有机质来源等划分有机相类型,确定储层评价参数及标准。结果表明,有机质在热演化过程中生成有机质孔隙,在排烃过程中产生的酸性流体和异常高压等形成溶蚀孔隙及裂缝,可以改善储集性能。研究区有机相包括AB、B、BC、C、CD及D六种类型,缺少A类型发育。有机相变化对储层的储集性能具有重要控制作用,可作为非常规油气储层评价的参数。束鹿凹陷沙三下亚段层序2的坡折带及洼槽区部位发育具有优质有机相AB类型的高有机质泥灰岩,储集性能较好,为有利目标区。该结果对评价页岩油气等非常规油气储层具有指导意义。
引用
收藏
页码:1 / 9+11 +11
页数:10
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