赣西北地区荷塘组页岩气有机地化特征分析  

Analysis of Organic Geochemical Characteristics of Shale Gas in Hetang Formation of Northwest Jiangxi Province

作　　者：王鹤 肖紫山 Wang He;Xiao Zishan(Jiangxi Research Institute of Coalfield Geological Survey,Nanchang,Jiangxi 330001;Jiangling Holding Co.,Ltd.,Nanchang,Jiangxi 330001)

机构地区：[1]江西省煤田地质勘察研究院,江西南昌330001 [2]江铃控股有限公司,江西南昌330001

出　　处：《江西煤炭科技》2023年第4期112-115,共4页Jiangxi Coal Science & Technology

基　　金：江西省煤田地质局下达的页岩气资源调查评价专项任务(赣煤地字(2015)46号)。

摘　　要：通过分析荷塘组泥页岩的有机质丰度、有机质类型、有机质成熟度,发现荷塘组有机地化特征具有页岩气生烃潜力,有机碳含量总体显高值,有机质丰度较高。九江—瑞昌复向斜和彭泽复向斜荷塘组泥页岩干酪根类型主要为Ⅱ1型-腐殖腐泥型,而修水—武宁复向斜荷塘组泥页岩干酪根主要为Ⅰ型—腐泥型。此两地区荷塘组页岩有机质成熟度也较高,达到了成熟-过成熟演化阶段;分析可知,荷塘组地层具有分布面积广、厚度大、有机质丰度高,且有机质成熟度高,是具备形成页岩气的物质条件的有利地区。Based on the analysis of the organic matter abundance,organic matter type,and organic matter maturity of the Hetang Formation shale,the article finds that the organic geochemical characteristics of the Hetang Formation have the potential for shale gas hydrocarbon generation,with an overall high organic carbon content and high organic matter abundance.By analyzing the shale kerogen of the Jiujiang Ruichang syncline,Pengze syncline and Xiushui Wuning syncline Hetang Formation,it determines that the Hetang Formation has the characteristics of wide distribution area,large thickness,high organic matter abundance,and high organic matter maturity,which is a favorable area for the formation of shale gas.

关 键 词：赣西北 页岩气 有机质丰度 有机质类型 有机质成熟度 

分 类 号：P618.12[天文地球—矿床学]