【摘要】 以地质统计学为基础的三维地质建模技术已成为当今储层精细描述中的一项关键技术,但该项技术存在着一个最大的限制就是对硬数据的密度要求十分苛刻,因而多用于井网密度大的已开发区的储层精细描述。而在勘探区块,多采用地震属性资料作为软约束,来弥补资料不足的缺陷。本文以我国海上某油田为例,探讨了应用地震反演资料约束三维储层建模的几种方法,并提出"多条件、多级约束"的建模策略。研究表明,有效地应用包括地震信息在内的多学科信息进行岩相随机建模,能有效地弥补井间信息不足的缺陷,降低地质模型的不确定性,所建立的模型能很好地综合井资料的纵向高精度和地震资料的横向高精度信息,可以成功地应用三维随机建模技术解决勘探开发阶段的储层精细描述问题。更多还原

【Abstract】 Three-dimensional geological modelling technology based on geostatistics has become a key technology for the fine reservoir description,however,practically a restriction exists on the density of hard data.The technology tends to be most used for the fine reservoir description in the zone with great well density.In the exploration block,seismic attribute data are most applied as soft constraints to make up the deficiencies of insufficient information.Based on the research of an offshore oilfield in China,this paper discusses the application of 3D seismic inversion constrained reservoir model in several ways,and provides modeling strategies of "multi-condition,multi-level constraint".Our results demonstrate that the application of multi-subject information including seismic information can efficiently make up the shortcoming of lacking of information between wells,and decreases the uncertainty of geologic models.The established models can integrate the vertical high resolution of wells and horizontal high resolution of seismic data,hence,with this method,3D stochastic modeling technology can be applied successfully to solve any problems of fine reservoir description during exploration and development.更多还原