地质通报2012，Vol.31Issue(10)：1715-1723,9.
强烈风化作用对烃源岩评价指标的影响——以额济纳旗及邻区石炭系—二叠系为例
The influence of intense weathering on the evaluation indexes of hydrocarbon source rocks: A case study of Carboniferous-Permian Strata of Ejin Banner and its neighboring areas
摘要
Abstract
Based on a comparative study of the hydrocarbon source rocks evaluation indexes of organic matter abundance, type and maturity between samples from four shallow drill holes and outcrop samples of Permian Maihanhada Formation, Aqide Formation and Haersuhai Formation, and between core samples of XT9 well and outcrop samples of Ganquan Formation of Dahulishan section, the authors hold that the influence range of intense weathering on the source rocks evaluation indexes of organic matter abundance and normal type (H/C-O/C) is over 50m, and the extents of influence on various evaluation indexes are somewhat different.The influence on TOC is minimum, the influence on the potential hydrocarbon generation amount is maximum, and the influence on the biomarkers indexes is comparatively insignificant. On such a basis, organic matter types of outcrop samples can be effectively divided. The influence range of intense weathering on the vitrinite reflectance (Ro) is less than 10 m.关键词
烃源岩/风化作用/有机质丰度/有机质类型/有机质成熟度Key words
hydrocarbon source rocks/ weathering/ organic matter abundance/ organic matter type/ organic matter maturity分类
天文与地球科学引用本文复制引用
魏建设,卢进才,魏仙样,韩伟,姜亭..强烈风化作用对烃源岩评价指标的影响——以额济纳旗及邻区石炭系—二叠系为例[J].地质通报,2012,31(10):1715-1723,9.基金项目
中国地质调查局地质调查项目《银额盆地及其邻区石炭-二叠系油气远景调查》(编号:1212011120962) （编号:1212011120962）
