【摘要】 针对油田开发中后期油藏描述实现精细化、数字化和一体化问题,在明确数字化精细油藏描述含义的基础上,建立一套数字化精细油藏描述程序方法,包括8个步骤:①沉积背景、沉积环境分析;②等时地层格架与精细构造研究;③细分沉积微相,识别成因单元砂体,确定砂体空间展布形态、叠置模式,建立储集层沉积模型;④确定成因单元砂体规模、发育频率等参数,建立原型模型地质知识库,为井间砂体预测提供定量参数;⑤沉积模式与砂体分布控制的高分辨率地震储集层预测;⑥综合建立砂体成因单元构型模型;⑦储集层物性参数与流体分布规律评价;⑧综合一体化、三维可视化建立储集层地质模型,预测剩余油分布。同时,规范了每一步骤的重点研究内容及关键技术,为数字化精细油藏描述的实现乃至数字油藏的建设提供参考。图4表1参19更多还原

【Abstract】 To solve the problem of realizing detailed,digital and integrative reservoir characterization in the mid-late stage of oilfield development,a set of digital methods of detailed reservoir characterization is established on the basis of specifying the definition of digital detailed reservoir characterization.The methods contain eight steps:(1) the analysis of sedimentation background and environment,(2) the study of isochronous stratigraphic framework and detailed structure model,(3) the establishment of reservoir sedimentation model by identifying microfacies,genetic sand units,sand shape and superimposition pattern,(4) the establishment of prototype model geological database by determining such parameters as the size and development frequency of genetic sand units to provide quantitative parameters for sandbody prediction between wells,(5) high precision seismic reservoir prediction under the control of sand body sedimentary model,(6) the establishment of the architecture model of genetic sand unit,(7) the analysis of physical parameters of reservoir and the distribution of fluids in reservoir,(8) integrative and 3D-visualized reservoir modeling and remaining oil prediction.Meanwhile,the core problem and key technology in each step is specified.The methods can provide reference to realize the digital detailed reservoir characterization and even the construction of digital reservoir.更多还原