复杂碳酸盐岩储层岩石分类方法研究现状与展望

发布时间：2018-08-07 18:52

【摘要】：碳酸盐岩储集层岩石分类是储层评价和地质建模过程中的关键步骤.复杂碳酸盐岩的强非均质性导致目前尚无统一的碳酸盐岩储集层岩石分类方法,目前国内外碳酸盐岩储层岩石分类方法多受单因素控制,将其根据分类依据划分为地质、物性、开发动态三大类别.总结了不同的岩石分类方法研究进展、现状、存在的优势和局限性,提出碳酸盐岩储层岩石分类的发展方向.地质分类法揭示了沉积成岩特征,但孔渗关系及物理响应不明确;物性分类具有较好的孔渗关系,但在储层静态地质建模过程中,缺乏地质成因空间约束,导致空间岩石类型预测不确定性高;开发动态分类联系生产动态,但划分尺度较大,不能揭示储层微观特征.指出针对复杂碳酸盐岩,综合微观定量数据与宏观定性资料、囊括地质与岩石物理内涵、兼顾储层静态与油藏动态的多层次分类方法是复杂碳酸盐岩储集岩分类的最有效途径,是未来碳酸盐岩储层岩石分类发展的主要方向.
[Abstract]:Carbonate reservoir rock classification is a key step in reservoir evaluation and geological modeling. Because of the strong heterogeneity of complex carbonate rocks, there is no uniform classification method for carbonate reservoir rocks. At present, the classification methods of carbonate reservoir rocks at home and abroad are mostly controlled by single factors, which are divided into geological and physical properties according to the classification basis. Three main categories of development dynamics. This paper summarizes the research progress, present situation, advantages and limitations of different rock classification methods, and puts forward the development direction of carbonate reservoir rock classification. The geological classification reveals the characteristics of sedimentary diagenesis, but the relationship between pore and permeability and physical response is not clear, and the physical property classification has a good relationship between pore and permeability, but in the process of static geological modeling of reservoir, there is a lack of spatial constraints of geological genesis. As a result, the prediction uncertainty of spatial rock types is high, and the classification of development dynamics is associated with production dynamics, but the scale of classification is large, which can not reveal the microscopic characteristics of reservoir. It is pointed out that the multi-level classification method for complex carbonate rocks is the most effective way to classify complex carbonate reservoir rocks by synthesizing microscopic quantitative data and macroscopic qualitative data, including geological and petrophysical connotations, and taking account of reservoir static state and reservoir performance. It is the main development direction of carbonate reservoir rock classification in the future.
【作者单位】：中国石油勘探开发研究院;
【基金】：国家重大专项(2017ZX05030-001) 中国石油天然气股份有限公司重大科技专项(11.2011E-2501.01)联合资助
【分类号】：P618.13

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