控制碳酸盐岩油藏单井产能的主要地质因素分析——以哈萨克斯坦北特鲁瓦油田KT-I油层组为例

发布时间：2018-08-18 19:27

【摘要】：目前国内外针对控制碳酸盐岩油藏单井产能主要地质因素研究还较少。本文以哈萨克斯坦北特鲁瓦油田KT-I油层组为例,基于岩芯分析、测井解释成果、储层微观表征与生产动态分析等资料,宏观上从沉积作用、成岩作用、构造作用以及微观上从储层岩性、储层类型、物性、有效厚度等两方面对单井产能主控因素进行了研究。研究发现单井产能主要受孔隙体积、渗透率与储层有效厚度的直接影响,而孔隙体积及孔隙空间类型受岩性、沉积微相与成岩相控制。在碳酸盐岩中,裂缝的发育可极大程度地改善孔隙连通性,从而增加渗透率,而其发育受断裂作用与构造变形及成岩作用、岩性控制。研究各种地质因素对碳酸盐岩单井产能的控制作用,可为制定初次油气开发方案提供有效的指导,为调整开发方案和老区扩边勘探、滚动开发提供更为可靠的依据。
[Abstract]:At present, there are few researches on the main geological factors of controlling single well productivity in carbonate reservoir at home and abroad. Taking the KT-I formation in North Troy Oilfield of Kazakhstan as an example, based on the core analysis, logging interpretation results, reservoir microscopic characterization and production performance analysis, the paper makes a macroscopic analysis of sedimentary and diagenesis. The main factors controlling productivity of single well are studied in terms of reservoir lithology, reservoir type, physical property and effective thickness. It is found that single well productivity is directly affected by pore volume, permeability and effective reservoir thickness, while pore volume and pore space type are controlled by lithology, sedimentary microfacies and diagenetic facies. In carbonate rocks, fracture development can greatly improve pore connectivity and thus increase permeability, and its development is controlled by fracture, structural deformation and diagenesis, and lithology. The study of the controlling effect of various geological factors on the productivity of carbonate single well can provide effective guidance for the formulation of the initial oil and gas development plan, and provide a more reliable basis for adjusting the development plan and extending the edge of the old area for exploration and rolling development.
【作者单位】：中国地质大学;中国石油勘探开发研究院;
【基金】：中国石油天然气集团公司攻关课题(2001D-2001)资助
【分类号】：P618.13

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