基于地质统计理论的储集层潜在伤害钻前预测方法  

Prediction method of formation potential sensitivity damage in pre-drilling based on geological statistics

作　　者：张锐[1] 王瑞和[1] 于世花[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,东营257061 [2]中国石油大学图书馆,东营257061 [3]中国石油大学地球资源与信息学院,东营257061

出　　处：《地球物理学报》2009年第6期1657-1662,共6页Chinese Journal of Geophysics

基　　金：中国石油天然气集团公司创新基金项目(03E7029)资助

摘　　要：储集层潜在伤害预测研究是各项作业方案设计的依据.应用地质统计的区域化变量理论和其估计、模拟处理方法,针对钻前情况,在储集层潜在伤害空间特性分析的基础上,建立了储集层潜在伤害钻前预测方法,并以胜利某油田区块Es2地层水敏伤害结果为例进行了钻前预测.结果表明,该方法在钻前情况下给出了该区块的水敏指数分布,且预测分布结果与该区块实际水敏指数分布情况相符,提出的储集层潜在伤害钻前预测方法切实可行.Formation potential damage prediction is a useful reference for all kinds of operation scheme designing. According to regionalized variable theory and processing methods, a new method of pre-drilling prediction for formation potential damage was presented based on analysis of spatial character of formation potential damage, in which geological statistics was introduced to describe the character, and employed to conduct pre-drilling prediction of formation potential damage utilizing water sensitivity data of Es2 of a block in Shengli oilfield. The result showed that the new method gave potential water sensitivity distribution of the block under the condition of pre-drilling, and the prediction distribution was in correspondence with actual water sensitivity distribution, and the method of pre-drilling prediction presented here was feasible.

关 键 词：储集层潜在伤害 钻前预测 水敏 地质统计 区域化变量 

分 类 号：P631[天文地球—地质矿产勘探] TE258[天文地球—地质学]