应用序贯高斯模拟法预测储集层潜在伤害  

Prediction of potential formation damage by means of Sequential Gaussian Simulation

作　　者：张锐[1] 王瑞和[1] 王建冬[2] 邱正松[1] 徐守余[3] 

机构地区：[1]中国石油大学石油工程学院,山东东营257061 [2]胜利石油管理局石油工程技术开发中心,山东东营257055 [3]中国石油大学地球资源与信息学院,山东东营257061

出　　处：《大庆石油学院学报》2009年第2期58-61,73,共5页Journal of Daqing Petroleum Institute

基　　金：中国石油天然气集团公司创新基金项目(03E7029)

摘　　要：应用地质统计的区域化变量理论进行储集层潜在伤害空间特性分析,基于序贯高斯模拟方法原理,提出储集层潜在伤害预测新方法,并以胜利油田某区块17口井水敏伤害指数数据为例,进行该区块储集层潜在伤害的区域分布模拟和偏差检验.结果表明:由该区块水敏伤害指数条件模拟等值线图,水敏指数值在0.2左右的分布面积最大,在0.3左右次之,在其他值左右的分布面积较小;各图整体分布结构大致相同,反映了整体分布规律,但相互间存在差异,体现了分布的地质不确定性;同时偏差检验指出,序贯高斯模拟相对偏差低于6.5%,较准确地模拟出区块的水敏伤害指数,说明提出的储集层潜在伤害预测方法可行.The spatial characteristics of formation potential damage was analyzed according to regionalized variable theory,and Sequential Gaussian Simulation of geological statistics was introduced to describe the characteristics,further new method of prediction for formation potential damage was presented.The method was employed to conduct regional prediction taking the example of real water sensitivity data of a block in Shengli oilfield.The result showed that distribution area of water sensitivity index isogram around 0.2 value was largest,followed by that around 0.3,and was smaller around other values in numerous simulation results.And the whole distribution structure of every isogram of simulation was almost consistent,but tiny difference existed,which gave whole regularities of distribution,also described indeterminateness of regional distribution on water sensitivity index.The check of simulation result indicated that Sequential Gaussian Simulation gave accurately values of water sensitivity index for the block,and the relative deviation of results was lower than 6.5%,which illustrated new method of prediction presented was feasible.

关 键 词：储集层潜在伤害 预测 水敏 地质统计 序贯高斯模拟 

分 类 号：TE112.26[石油与天然气工程—油气勘探]