高孔低渗碳酸盐岩孔隙结构及控制因素

doi:10.11885/j.issn.1674-5086.2021.04.09.01

西南石油大学学报(自然科学版) ›› 2023, Vol. 45 ›› Issue (3): 1-13.DOI: 10.11885/j.issn.1674-5086.2021.04.09.01

• 地质勘探 • 下一篇

高孔低渗碳酸盐岩孔隙结构及控制因素

唐洪明¹, 庞榆^1,2, 王锡伟³, 赵昱超²

1. 西南石油大学地球科学与技术学院, 四川成都 610500;
2. 中国石油西南油气田分公司勘探开发研究院, 四川成都 610041;
3. 中国石油西南油气田分公司勘探事业部, 四川成都 610041

收稿日期:2021-04-09 出版日期:2023-06-10 发布日期:2023-07-07
通讯作者: 唐洪明,E-mail:swpithm@vip.163.com
作者简介:唐洪明，1966年生，男，汉族，四川武胜人，教授，博士研究生导师，主要从事储层地质和油气层保护技术等方面的教学和研究工作。E-mail：swpithm@vip.163.com；
庞榆，1997年生，女，汉族，四川南充人，硕士，主要从事油气地质勘探等方面的研究工作。E-mail：1252902160@qq.com；
王锡伟，1997年生，男，汉族，辽宁盘锦人，硕士，主要从事油气地质勘探等方面的研究工作。E-mail：2006190044@cugb.edu.cn；
赵昱超，1993年生，男，汉族，新疆库尔勒人，硕士，主要从事地质建模与地质力学建模等方面的研究工作。E-mail：zyccom81-59@petrochina.com.cn
基金资助:
中国石油-西南石油大学创新联合体项目(2020CX020100)

The Pore Structure and Controlling Factors of High-porosity and Low-permeability Carbonate

TANG Hongming¹, PANG Yu^1,2, WANG Xiwei³, ZHAO Yuchao²

1. School of Geosciences and Technology, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2. Exploration and Development Research Institute, Southwest Oil & Gas Field Company, PetroChina, Chengdu, Sichuan 610041, China;
3. Exploration Divisions, Southwest Oil & Gas Field Company, PetroChina, Chengdu, Sichuan 610041, China

Received:2021-04-09 Online:2023-06-10 Published:2023-07-07

摘要/Abstract

摘要： 中东X油田上白垩统Khasib组碳酸盐岩储层属于浅海陆棚沉积，具有生物类型和岩石类型多、高孔低渗及孔隙结构复杂等特征，根据福克石灰岩分类方案，突出生物特征，在岩石分类基础上，综合对比不同类型储层孔隙结构特征及控制因素。研究表明，储层岩石类型有泥晶生屑砂屑灰岩、泥晶藻屑灰岩、泥晶生屑灰岩和泥晶浮游有孔虫灰岩等4类；孔隙结构类型可划分为高孔中渗中喉型、高孔低渗中细喉型及高孔低渗细喉型等3类；影响孔隙结构的主要因素为物性和结构组分两种，不同岩性之间，生物种类和含量的差异影响原生孔隙的发育和后期成岩作用的强弱，造成了孔隙结构的差异。同种岩性之间，灰泥含量控制了孔隙结构的质量。

关键词: 碳酸盐岩储层, 高孔低渗, 孔隙结构, 控制因素, 生物碎屑灰岩

Abstract: The Upper Cretaceous Khasib Formation carbonate reservoir of X Oilfield in the Middle East is a shallow-sea shelf deposit, it has the characteristics of multiple biological types and rock types, high porosity and low permeability reservoirs, and complex pore structure. Based on the Folk limestone classification scheme, this paper highlights the biological characteristics, and comprehensively compares the pore structure characteristics and control factors of different types of reservoirs on the basis of rock classification. Studies have shown that the reservoir rock types include four types of micrite bioclastic sand-clastic limestone, micrite algal clastic limestone, micrite bioclastic limestone and micritic planktonic foraminifera limestone; the type of pore structure can be divided into three types: high porosity and medium permeability medium throat type, high porosity and low permeability medium fine throat type, high porosity and low permeability fine throat type; the main factors affecting the pore structure are physical properties and structural components. Among different lithologies, the difference in biological species and content affects the development of primary pores and the strength of later diagenesis, resulting in differences in pore structure. Among the same lithology, the content of plasters controls the quality of the pore structure.

Key words: carbonate reservoir, high porosity and low permeability, pore structure, controlling factor, bioclastic limestone

中图分类号:

TE122

唐洪明, 庞榆, 王锡伟, 赵昱超. 高孔低渗碳酸盐岩孔隙结构及控制因素[J]. 西南石油大学学报(自然科学版), 2023, 45(3): 1-13.

TANG Hongming, PANG Yu, WANG Xiwei, ZHAO Yuchao. The Pore Structure and Controlling Factors of High-porosity and Low-permeability Carbonate[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2023, 45(3): 1-13.

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The Pore Structure and Controlling Factors of High-porosity and Low-permeability Carbonate

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