渐进式薄储层精细表征技术在老油田挖潜中的应用
Progressive Fine Characterization Technology of Thin Reservoir in Tapping the Potential of Old Oilfields

地质问题的复杂性和单一信息的局限性决定了油藏描述是多学科的综合研究工作。本文以xx油田为例，在认真解剖研究区主要地质问题，分析不同资料优缺点的基础上，针对地质上储层薄、横向变化大，地震资料低信噪比和低分辨率的问题，采用地震–测井–油藏多学科一体化的思路，首次明确提出了“渐进式”薄储层单砂体精细刻画技术流程与方法。形成的油藏地质特色技术包括：1、基于相控分区统计学反演的砂体分布预测技术；2、基于高频地层对比与反演成果的单砂体顶面微构造表征技术；3、基于构型模式认知的地下单砂体内部结构表征技术；基于上述研究成果提供开发调整建议井位6口，滚动评价建议井位2口，有效指导了油田开发方案的调整，增油效果明显。本文成功示例了不同尺度资料如何合理表征薄储层，具有较好的推广应用潜力。
The complexity of geological problems and the limitation of single information determine that reservoir description is a multidisciplinary comprehensive research work. Taking XX oilfield as an example, based on the detail study of the main geological problems in the study area and the analysis of the advantages and disadvantages of different data, in view of the problems of thin and lateral variation of the geological reservoir, the low signal to noise ratio and low resolution of seismic data, the technical process and method of “progressive” fine characterization of single sand body of thin reservoir were put forward for the first time by using the idea of multidiscipline integration of seismic, well logging and reservoir. Reservoir geological characteristics include: 1, sand body distribution prediction technology based on phase controlled zoning statistical inversion; 2, single sand top surface microstructural characterization technology based on high frequency stratigraphic contrast and inversion results; 3, internal structure characterization of single sand based on configuration pattern recognition; based on the above research results, development adjustment recommended 6 wells, rolling evaluation recommended 2 wells, effectively guiding the adjustment of oil field development plan, the effect of increasing oil is obvious. Successful examples show how different scale data can be applied to thin reservoir characterization rationally, which has good potential for popularization and application.