王翠丽;周文;谢玉洪;郑冰;宋荣彩;

• 1:成都理工大学油气藏地质及开发工程国家重点实验室
• 2:中海石油(中国)有限公司湛江分公司
• 3:中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所

摘要(Abstract)：

为了探讨莺歌海盆地泥底辟带的高温热事件与储层成岩作用的关系,以泥底辟带的形成、演化特征为切入点,通过薄片、探针、流体组分及包裹体等资料寻找泥底辟带与底辟事件相关热流体活动存在的依据,总结分析了其形成期次,研究了与热流体活动有关的主要成岩作用。研究结果表明,泥底辟带储层中存在高温矿物组合,地层水中的钙、镁离子质量浓度和天然气中的二氧化碳体积分数均高于非泥底辟带;包裹体测试古地温高于现今温度,古地温的分布及其中的流体成分显示热液活动具有期次性;泥底辟带较非泥底辟带,地层水中二氧化碳溶蚀长石、碳酸盐等物质生成的K+、Ca2+和HCO-3质量浓度高;长石溶孔、粒间溶孔和铸模孔等次生孔隙发育,占总孔隙比例较高,溶蚀作用较强;泥底辟带储层中的碳酸盐岩胶结物体积分数高,胶结作用相对发育;泥底辟带主要存在3期热流体活动,与之有关的影响储层质量的成岩作用主要有溶蚀作用和胶结作用。

关键词(KeyWords)： 泥底辟带;热流体活动;期次;成岩作用;溶蚀作用;胶结作用

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专项“大型油气田及煤层气开发”(2011ZX5023)

作者(Author): 王翠丽;周文;谢玉洪;郑冰;宋荣彩;

Email:

DOI:

参考文献(References)：

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