两类地质模型的网格系统构建与模型转换  

Grid system design for two types of geological model and model transformation

作　　者：孙立春[1] 高博禹[1] 

机构地区：[1]中海石油研究中心

出　　处：《中国海上油气》2007年第6期381-386,共6页China Offshore Oil and Gas

摘　　要：不同的网格系统对储层静态模型的属性插值和数值模拟结果均有明显的影响,而通常的地质建模仅从单一方面来考虑模型网格系统,因此提出了分别进行油藏静态描述地质模型和油藏数值模拟地质模型网格系统设计的新思路,并利用网格重采样技术实现两类模型的协调统一。根据储层属性演化的主控因素,生成能反映储层空间分布及参数演化规律的网格系统,用于储层静态模型参数的插值;根据油藏开发生产实际与油藏流体流动主流线方向,构建用于油藏数值模拟所用的地质模型;利用网格重采样技术,实现由静态地质模型属性参数场到油藏数值模拟地质模型属性参数场的转换,使油藏数值模拟地质模型既能充分反映储集体的地质意义,又能更好地反映油藏流体的流动特征。For a static reservoir model, different grid systems have different impacts on attribute in-terpolation and numerical simulation, and only a unilateral consideration of grid system is taken in usual geological modeling. Therefore, a new concept that different grid systems are designed for static description model and numerical simulation model of oil reservoir respectively has been proposed, and a grid resampling technique is used to coordinate the two types of model. Based on the main and factors to control attribute evolution of reservoir, a grid system that can indicate reservoir distribution and its parameter evolution is made, and has been applied to parameter interpolation in static reservoir models. Based on production practice and main flowing direction in a oil reservoir, the geological model can be built for numerical simulation of oil reservoir. Thus a transformation from a parameter field of static model to a parameter field of numerical simulation model can be realized by using the grid resampling technique, making the numerical simulation model reflect both the geological significance and the fluid flowing of oil reservoirs more accurately.

关 键 词：油藏静态描述 油藏数值模拟 地质模型 网格系统设计 

分 类 号：P618.130.2[天文地球—矿床学] TP393.4[天文地球—地质学]