基于序贯高斯模拟的储量估算分层更新技术  

Reserves estimation on hierarchical update technique based on the Sequential Gaussian Simulation

作　　者：李迪[1] 胡乃联[1] 李国清[1] 侯杰[1] 

机构地区：[1]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083

出　　处：《中国矿业》2014年第3期130-135,共6页China Mining Magazine

基　　金：国家自然科学基金项目资助(编号:51104010);教育部基本科研业务费项目资助(编号:FRF-SD-12-001A);国家高技术研究发展计划(863)项目资助(编号:2012AA062201)

摘　　要：针对传统储量估算方法无法充分利用炮孔数据和再现空间数据分布,难以准确指导后续生产的现状,本文提出使用克里格法进行初步储量估算,而后尝试引入常用于储层建模的序贯高斯模拟算法,加入生产爆破数据进行储量估算模型的分层更新,并以国内某大型露天钼矿为工程背景进行进一步研究,最后得到融合了不同块度和储量级别的块体模型,并从频率直方图、变异函数等方面深入剖析模拟结果,得出序贯高斯模拟用于储量模型的分层更新能够再现实测数据品位分布的结论。Since traditional reserves estimation method cannot make full use of production exploration data and reproduce the distribution of spatial data ,they are difficult to give an accurate guidance for subsequent production .This article assumes that Krige is used to calculate reserves firstly ,then attempts to import Sequential Gaussian Simulation algorithm which is commonly used in reservoir modeling into the deposit reserves update .A large open-pit molybdenum mine was taken as a case to prove the algorithm ,then a model which contains different sizes and classification of reserves was obtained .The result was analyzed from the view of frequency histogram of grade distribution and variation function .Finally the conclusion is drawn that Sequential Gaussian Simulation applied for reserves update can reproduce grade distribution of experimental data perfectly and it can be help for subsequent production .

关 键 词：序贯高斯模拟 储量估算 分层更新 

分 类 号：P628[天文地球—地质矿产勘探]