朱如凯;吴松涛;崔景伟;白斌;杨智;惠潇;冯佳睿;苏玲;时文;王晓瑞;

• 1:中国石油勘探开发研究院
• 2:国家能源致密油气研发中心
• 3:中国石油天然气集团公司油气储层重点实验室
• 4:中国石油长庆油田分公司

摘要(Abstract)：

常规-非常规油气协同发展引发储集体类型的多样性,品质整体变差,孔隙结构更为复杂,亟需建立相对统一的孔隙结构评价方案,为储层评价与甜点区优选提供技术支持。基于岩石孔隙结构解剖,提出"孔隙结构四分法"评价方案,将孔隙系统分为毫米孔(大于1mm)、微米孔(1~1 000μm)、亚微米孔(100~1 000nm)及纳米孔(小于100nm);明确了不同类型孔隙系统发育位置、流体作用力及流动机理,建立了对应的分析评价技术。解剖了克拉2气田巴什基齐克组常规砂岩、新安边油田长7段致密砂岩、川中大安寨段介壳灰岩、川南龙马溪组页岩4类储层,明确了各储层类型孔隙结构的差异性及不同级别孔隙所占比例,探讨了孔隙结构对储层物性、资源经济性及开发工艺的影响;孔隙结构分级研究需与储层有效性评价紧密结合,特征尺度决定流体相态与作用力,影响流体可动性及油气开发工艺。进一步加强孔隙分级评价关键界限值的研究,完善孔隙结构表征技术的融合,建立孔隙结构与岩性和产能的定量关系是未来研究的重点。

关键词(KeyWords)： 油气储层;孔隙尺寸;孔隙结构;常规-非常规;纳米孔

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划(973)项目“中国陆相致密油(页岩油)形成机理与富集规律”(2014CB239000);; 国家科技重大专项“岩性地层油气藏成藏规律、关键技术及目标评价”(2011ZX05001)

作者(Author): 朱如凯;吴松涛;崔景伟;白斌;杨智;惠潇;冯佳睿;苏玲;时文;王晓瑞;

Email:

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