油气资源定量评价系统

A SYSTEM FOR QUANTITATIVE PETROLEUM RESOURCE EVALUATION

本文总结了中国和原苏联在油气资源评价中多年来的经验,根据评价任务和使用参数等,提出了油气资源评价的五个子系统。这五个子系统构成了一个较完整的评价系统,基本能够满足油气资源评价中的各种需求。单一评价方法分类正在老化,成因法、统计法和专家系统正在互相溶汇,在完成某一类评价任务中而形成统一的评价系统。本文提出的五个子系统都具有这样的特点。它们互相独立地工作,并可以互相比较所获得的结果,互相校正。这五个子系统的工作程序基本相同,即选择评价区、确定边界条件、建立理论模型。选择标准区,用标准区的资料对所建立模型进行校对,并获得评价中可用的实际工作模型,进行计算并比较计算结果。因此数据库、三维模拟、计算机、数学方法及计算机绘图是资源评价中必不可少的组成部分。

This article summarizes the experiences of petroleum resource evaluation in China and the former Soviet Union and proposes five subsystems based on evaluation objectives and parameters. These five subsystems form a complete evaluation system that meet different demands in resource assessment. Evaluation of petroleum resources based on one single method has its limitation.The genetic method,statistical model and expert system have been integrated to provide a better performance and for various in the proposed method.The fundamental procedures of these five sub-systems are about the same;selection of an evaluation region,determination of the boundary of the region, establishment of a theoretical model,selection of a standard region and using the data in this region to calibrate the theoretical model and turning it into a practical working model,and then calculating the quality of resource and comparing the evaluation results.Data base,three dimensional modeling and computer and mathematical methods and computer graphics are the essentials in this system of petroleum resource evaluation.