密井网条件下的储层确定性建模方法

RESERVOIR DETERMINABLE MODELING METHOD BASING ON DENSE PATTERN CONDITION

概述了大庆油田萨、葡、高油层非均质、多层砂岩储层沉积特征及其进入油田开发后期信息资料特点。提出了基于密井网资料条件下 ,以沉积学为指导 ,综合动、静态资料建立确定性模型的思路。基于层次建模分析的思想 ,将前缘相储层划分为层段结构模型、单砂层模型、单砂体模型和孔隙结构模型 4个描述层次。以前缘相储层单砂层模型为例 ,论述了建模方法、步骤。论文同时阐述了这种确定性建模方法的适用条件 ,指出目前的确定性建模中具有不确定性 ,并受到研究效率的制约 。

This paper introduces the characteristic of heterogeneity and multi layer of sandstone reservoir sedimentation in Saertu Potaohua Gaotaizi reservoir in Daqing Oil Field and the data characteristic in the later stage of the development. It proposes the thought of constructing a determinable model basing on dense pattern data, directed with sedimentology and combining with dynamic and static data. It divides frontal reservoirs into interval structure model, single sand layer model, single sand body model and pore structure model. Then it takes frontal phase reservoir single sand layer model as an example to illustrate the method and step of modeling and the proper condition for this determinable modeling method. It indicates the uncertainty of the certainty modeling and limit by study efficiency.