中国石油大学学报（自然科学版）2025，Vol.49Issue(4)：50-61,12.DOI:10.3969/j.issn.1673-5005.2025.04.005
鄂尔多斯盆地陇东地区太原组L58井铝土岩元素录井在储层预测中的应用
Application of element logging in reservoir prediction for bauxite of well L58 of Taiyuan Formation in Longdong area of Ordos Basin
摘要
Abstract
The aluminiferous rock series of well L58 in the eastern Longdong area of the Ordos Basin was taken as a case study to analyze the content and vertical variations of clay and aluminum minerals using elemental logging data.These results are then compared with mineral compositions and their vertical changes obtained through geochemical analysis and whole-rock XRD analysis,in order to validate the feasibility of the proposed method.Furthermore,the mineral content is correlated with the chemical weathering index,natural gamma ray values,porosity,and permeability to identify key controlling factors and diagnostic indicators for bauxite reservoirs.The results demonstrate that elemental logging data can effectively identify the mineral composition and lithology of aluminiferous rock series.High diaspore content(>75%),a low chemical weathering index(STI<15%),and elevated natural gamma values(GR>450 API)are indicative of high-quality reservoir zones,sup-porting the application of this method for the prediction of bauxite reservoir.关键词
铝土岩储层/元素录井/化学风化作用/陇东地区/鄂尔多斯盆地Key words
bauxite reservoir/elemental logging/chemical weathering/Longdong area/Ordos Basin分类
天文与地球科学引用本文复制引用
石小虎,曹高社,姚泾利,李辉,王慧玲,杜金良,张仁燕,牛永斌,朱森..鄂尔多斯盆地陇东地区太原组L58井铝土岩元素录井在储层预测中的应用[J].中国石油大学学报（自然科学版）,2025,49(4):50-61,12.基金项目
国家自然科学基金项目(41472104) （41472104）
中国石油长庆油田分公司科研项目(2022-37) （2022-37）
