风化壳储层分类、特征及油气勘探方向

doi:10.12108/yxyqc.20180202

岩性油气藏 ›› 2018, Vol. 30 ›› Issue (2): 12–22.doi: 10.12108/yxyqc.20180202

风化壳储层分类、特征及油气勘探方向

毛治国^1,2,3, 崔景伟^1,2,3, 綦宗金⁴, 王京红^1,2,3, 苏玲^1,2,3

1. 中国石油勘探开发研究院, 北京 100083;
2. 国家能源致密油气研发中心, 北京 100083;
3. 中国石油天然气集团公司油气储层重点实验室, 北京 100083;
4. 中国石油长城钻探工程公司测试分公司, 北京 100101

收稿日期:2017-06-10 修回日期:2017-08-01 出版日期:2018-03-21 发布日期:2018-03-21
第一作者:毛治国(1977-),男,博士,高级工程师,主要从事油气储层方面的研究工作。地址:(100083)北京市海淀区学院路20号中国石油勘探开发研究院。Email:maozhiguo@petrochina.com.cn。
基金资助:
国家重大科技专项课题“大型地层油气藏形成主控因素与有利区带评价”（编号：2017ZX05001-001）、“岩性地层油气藏沉积体系、储层形成机理与分布研究”（编号：2011ZX05001-002）、国家重点基础研究发展计划项目“中国陆相致密油（页岩油）形成机理与富集规律”（编号：2014CB239000）、中国石油科学研究与技术开发项目“复杂储集体储层非均质性特征与评价技术”（编号：2016B-0304）联合资助

Classification,characteristics and petroleum exploration of weathering crust reservoir

MAO Zhiguo^1,2,3, CUI Jingwei^1,2,3, QI Zongjin⁴, WANG Jinghong^1,2,3, SU Ling^1,2,3

1. PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China;
2. National Energy Tight Oil & Gas Research & Development Center, Beijing 100083, China;
3. Key Laboratory of Petroleum Reservoir, CNPC, Beijing 100083, China;
4. CNPC Greatwall Drilling Company, Beijing 100101, China

Received:2017-06-10 Revised:2017-08-01 Online:2018-03-21 Published:2018-03-21

摘要/Abstract

摘要： 作为一种由风化改造而成的油气储层，风化壳储层具有其特殊性。在已有研究成果的基础上，结合全球已发现的风化壳储层，界定了风化壳储层的内涵，提出了三级分类方案，梳理了其全球分布及特征。认为风化壳储层可以分为隆升风化型和基岩风化型，在全球不同地区和层系上均有分布；岩性几乎包括了碎屑岩、碳酸盐岩、岩浆岩及变质岩的所有岩石类型，表现出明显的多样性；储集空间类型复杂多样，孔隙（洞）型、裂缝型、孔缝复合型等均有发育；不同岩性的风化壳具有较独特的纵向结构和微观组构，纵向上形成了不同的层次结构和储集空间组合；平面上形成区域性分布的大型油气藏。中国含油气盆地的多旋回叠合发育了多期大中型不整合面，风化壳储层分布广泛，油气勘探潜力大；东部断陷—坳陷型叠合盆地风化壳油气勘探应以基岩风化型为主，中西部克拉通—前陆型叠合盆地风化壳油气勘探应以隆升风化型为主。

关键词: 低渗透储层, 成岩作用, 物性演化, 油气充注, 东三段, 渤中凹陷

Abstract: Weathering crust reservoir has special characteristics. Combined with the discovered weathering crust reservoir in the world, the connotation of weathering crust reservoir was defined, three-level classification was made, and its characteristics and global distribution were present. The weathering crust reservoir can be subdivided into two types:uplift weathering crust reservoir and basement weathering crust reservoir. The weathering crust reservoir is distributed to almost all of the oil-gas province in the world and geologic eras. The lithology of the weathering crust reservoir includes clastic rock, carbonate, magmatic rocks, and metamorphic rock. The type of the reservoir space is included in pores or hole, fracture and fractured pores. The weathering crust of different lithology forms different hierarchical structure and reservoir space combination, and large scale distribution. Multiperiod large and medium sized unconformities developed in superimposed basins in China. It leads to wide distribution and great exploration potential of weathering crust reservoir in China. It is main to prospect basement weathering crust in the superimposed rift basins in eastern China, and uplifting weathering crust in the superimposed craton-foreland basins in the middle and western China.

Key words: low permeability reservoirs, diagenesis, physical property evolution, hydrocarbon filling, the third member of Dongying Formation, Bozhong Sag

中图分类号:

TE122

毛治国, 崔景伟, 綦宗金, 王京红, 苏玲. 风化壳储层分类、特征及油气勘探方向[J]. 岩性油气藏, 2018, 30(2): 12–22.

MAO Zhiguo, CUI Jingwei, QI Zongjin, WANG Jinghong, SU Ling. Classification,characteristics and petroleum exploration of weathering crust reservoir[J]. Lithologic Reservoirs, 2018, 30(2): 12–22.

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风化壳储层分类、特征及油气勘探方向

Classification,characteristics and petroleum exploration of weathering crust reservoir

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