地质统计学反演在钱家店地区砂岩型铀矿勘探中的应用  

Application of Geostatistical Inversion for Exploration of Sandstone Type Uranium Ore in Qianjiadian Area

作　　者：罗林[1] 

机构地区：[1]中油辽河油田分公司勘探开发研究院,辽宁盘锦124010

出　　处：《铀矿冶》2018年第1期68-72,共5页Uranium Mining and Metallurgy

基　　金：中国石油天然气股份公司科技项目"辽河外围探区铀成矿条件研究及有利区优选"(2011a-4903)

摘　　要：钱家店地区砂岩型铀矿床的富集受构造、沉积储层、水文地质、层间氧化等多种地质条件的控制,目前除了以钻探手段寻找铀矿床外,还没有比较有效的物探技术手段对铀矿床的分布进行预测。钱家店地区具有丰富的三维地震和钻井资料,利用叠后波阻抗反演预测铀储层砂体,自然伽马地质统计学反演预测高铀矿化异常的分布,通过两者相互结合确定有利区,为井位部署提供依据,为提高钻探成功率提供指导。The reservoirs of sandstone type uranium deposits in Qianjiadian are controlled by various geological conditions such as structure,sediment reservoir stratum,hydrogeology and interlayer oxidation etc.But there is no effective geophysical prospecting technology to search such the uranium deposits,except by drilling the well hole for exploration.There are a lot of 3 Dseismic and well data in the Qiajiadian area,therefore,the folded wave impedance inversion is employed to predict sand body of uranium reservoir stratum and natural gamma geostatistical inversion is used to predict high uranium anomaly,which are used in petroleum geophysical prospecting technology.Based on comprehensive uranium geological conditions,application of the two methods can determine the prospecting areas,which provides the basis for lay out location of well,and can improve the success rate of drilling.

关 键 词：砂岩型铀矿床 地质统计学反演 铀矿化预测 

分 类 号：P619.14[天文地球—矿床学]