低渗透油藏产能主要影响因素分析与评价

影响低渗透油藏产能的因素众多而复杂，因此正确分析和评价这些因素，对于低渗透油田勘探开发有重要的指导意义。石油地质学、测井学、渗流力学和油藏工程等多学科结合，分析了影响低渗透油田产能和开发效果的主要因素，对各因素进行评价，并与油田实际生产情况进行了验证和比较。研究表明，储层产能宏观上受沉积微相和流动单元的控制。油层有效厚度及其渗透率是影响储层产能的主要因素，部署井位时，要确保有较大的油层厚度，否则，井的产量不但不高，而且无法保持稳产。对于渗透率各向异性的储层，部署开发井网时，要优选最优的井排距比和井网形式，确保油藏有较高的整体采收率。

Main Influence Factor Analysis and Evaluation of the Productivity in Low Permeability Oil Reservoirs

The affecting factors of the deliverability in low permeability reservoir are complex,so it is important to analyze and evaluate these factors correctly.Combining the science of geology of petroleum,well logging,fluid mechanics and reservoir engineering,in this paper,the dominant affecting factors of deliverability and develop efficiency in low permeability reservoir are analyzed and evaluated,and compared and verified with actual performance of oil field.The results show that the reservoir productivity for macro on the microfacies and flow unit.The net thickness and its reservoir permeability is the main factors that affect reservoir deliverability,so the pattern deployment must ensure that oil wells have larger reservoir thickness,otherwise,production wells is not high,or stable.When deploying network development wells at reservoirs of anisotropy permeability,the distance and pattern of the wells should be optimized,so that the reservoir has a higher overall oil recovery.