青海省柴达木盆地北缘侏罗系含煤地层测井相分析研究  

Jurassic Coal-bearing Strata Electrofacies Analytic Investigation in North Margin of Qaidam Basin,Qinghai Province

作　　者：潘语录 田贵发 徐宁 赵平 

机构地区：[1]青海煤炭地质勘查院,青海西宁810007

出　　处：《中国煤炭地质》2012年第3期66-70,共5页Coal Geology of China

摘　　要：在柴达木盆地北缘含煤区的地质勘查中,依据测井单参数曲线与多参数组合曲线特征,结合传统地质学,建立了与勘探区地质沉积相对应的测井相。其中鱼卡二井选择了详查阶段的7个钻孔测井资料,依据各岩性段的岩石组合、层序、沉积相变化等规律,将其含煤地层大煤沟组分为4个测井相;同样在红柳泉项目,将整个含煤岩段从下到上划分为8个测井相。通过以岩石标志层和煤岩层为骨架进行的全井田测井相分析,为该区建立了一套直观、连续、可比性强的煤岩层对比和聚煤环境分析的有效方法。During the geological exploration in the north margin of the Qaidam Basin, based on features of well logging singleparameter traces and multi-parameter combination traces established electrofacies corresponding to exploration area geological sedimentary facies. Of which, in the Iqe No.2 coalmine, general exploration stage well logging data of 7 boreholes were selected, based on regular pattern of each lithologic sector rock association, sequence of strata, sedimentary facies variation, divided the coalbearing strata - the Dameigou Formation into 4 electrofacies. In the same way divided the whole coal-bearing lithologic sector of the Hongliuquan project into 8 eleetrofacies from bottom to top. The whole minefield electrofacies analysis using rock marker bed and coal seams and strata as framework, established a set of intuitional, continuous, better comparability coal-seams and rock strata correlation and coal-accumulation environment analysis effective method for the area.

关 键 词：沉积相 测井相 地层对比 测井曲线 柴达木盆地北缘 

分 类 号：P631.8[天文地球—地质矿产勘探]