摘要
地质建模的最终目的是建立反映地质认识的地质模型,并对储层的不确定性以及由此带来的储量不确定性进行定量表征。南海P气田正处于开发的前期研究阶段,井点资料少,储层的纵横向变化快,储量不确定性强。该文以地质模型为载体,探讨了该气田地质储量不确定性分析的方法,总结了相似气田地质储量不确定性分析的一般方法:通过对变量的敏感性分析,确定影响该气田地质储量的主要变量,以此为基础通过拉丁超立方概率分析法进行储量评价及地质模型的优选,最终确定构造和气水界面的变化是影响该气田储量的主要因素,P50是该气田可动用储量。该方法为前期研究阶段的储量动用提供了新的思路。
The ultimate goal ol geological modeling is to set up a reasonable geological model and characterize theuncertainty ol reservoir and reserves.The South China Sea P gas field is at the stage ol early study and its well datais lack,the lateral and vertical variety ol reservoir is very quick,so the uncertainty ol the reserve is very strong.This paper discussed the method lor the uncertainty ol reserve based on geology model,then the general method aboutthe uncertainty ol similar gas lield has been summarized.Through analysis on the sensitivity about the variable,the main variable has been determined.Based on this study,reserve evaluation and optimization ol geological modelhave been done by Latin Hypercube Sampling.At last the change ol structure and OWC is delined as the main lactorallected the reserve ol the gas lield,and P50is the producing reserve.The method provide a new thought l'or reserveutilization at the stage ol early study.
作者
高玉飞
胡光义
王晖
孙立春
GAO Yufei;HU Guangyi;WANG Hui;SUN Lichun(CNOOC Research Institute, Beijing 100027, China)
出处
《山东国土资源》
2016年第10期16-20,共5页
Shandong Land and Resources
基金
国家重大专项基金项目
项目编号为2011ZX05024-001
关键词
地质模型
变量
不确定性分析
地质储量
拉丁超立方法
Geological model
variable
analysis on uncertainty
geological reverse
Latin Hypercube method
