地质装备2024，Vol.25Issue(1)：26-31,6.
青海乌图美仁地区石炭系烃源岩风化作用下有机质丰度校正
Correction of organic matter abundance under weathering of carboniferous source rocks at Wutumeiren area in Qinghai
蔡廷俊 1赵洪岳 1李吉庆1
作者信息
- 1. 青海省第四地质勘查院,西宁 810029||青海省页岩气资源重点实验室,西宁 810029
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摘要
Abstract
Based on the investigation of carboniferous route at Wutumeiren area in Qinghai province,the surface samples of source rocks were collected and the corrected data of source rocks in northwest China were compared,the organic matter abun-dance of unweathered carboniferous source rocks at Wutumeiren area is systematically analyzed,and the organic carbon weathe-ring factors near the basin are used in comparison with the surface and borehole samples of the source rocks in the basin near the study area.Based on the test data of surface samples in study area,the organic carbon content of pre-weathered source rocks in study area is inversely deduced.The results showed that the average content of organic carbon is 0.34%in clastic rock section of the pre-corrected Taiaosu formation,and 0.56%in clastic rock section of the Daganggou formation.The comprehen-sive evaluation is poor.After correction,the average content of organic carbon is 0.83%and 1.37%respectively,evaluated as medium source rock.The older the formation age of corrected source rock organic matter abundance,the larger the organic carbon weathering factor,and the greater the effect of weathering.关键词
石炭系/烃源岩/风化作用/有机质丰度Key words
carboniferous/source rock/weathering/organic matter abundance分类
能源科技引用本文复制引用
蔡廷俊,赵洪岳,李吉庆..青海乌图美仁地区石炭系烃源岩风化作用下有机质丰度校正[J].地质装备,2024,25(1):26-31,6.
