焦作煤田山西组泥页岩含气量分析及资源可采性评价  

Shanxi Formation Argillutite Gas Content Analysis and Resource Workability Assessment in Jiaozuo Coalfield

作　　者：卢玉杰 徐影 杨樱花 Lu Yujie;Xu Ying;Yang Yinghua(Henan Provincial Coal Geological Exploration and Research Institute,Zhengzhou,Henan 450016;Henan Yuzhong Geological Exploration Engineering Co.Ltd.,Zhengzhou,Henan 450016;Henan Natural Resources Science and Technology Innovation Center(Unconventional Natural Gas Exploitation Research),Zhengzhou,Henan 450016;The First Henan Provincial Resources and Environmental Survey Institute,Zhengzhou,Henan 450000)

机构地区：[1]河南省煤炭地质勘察研究总院,郑州450016 [2]河南豫中地质勘查工程有限公司,郑州450016 [3]河南省自然资源科技创新中心(非常规天然气开发研究),郑州450016 [4]河南省资源环境调查一院,郑州450000

出　　处：《中国煤炭地质》2022年第3期50-54,共5页Coal Geology of China

基　　金：河南省自然资源科技项目“河南省典型地区煤系非常规天然气共探合采关键技术研究”(豫财招标采购-2019-379-3)。

摘　　要：针对河南省焦作煤田山西组泥页岩储层,利用20余口井的测试化验数据对其储层特征进行分析,运用容积法对泥页岩含气量(吸附气+游离气)进行计算,发现焦作煤田泥页岩含气量为0.99~2.81m^(3)/t,平均1.87m^(3)/t,其含气量平面展布特征表现为东南高,西北低;结合研究区泥页岩储层基本地质属性,优选埋深、厚度、有机质含量、脆性以及含气量作为其可采性评价指标,对焦作煤田山西组泥页岩可采性进行分析,显示其可采指数为0.213~0.758,平均0.451,平面上表现为东南高西北低、西部最低的趋势,与泥页岩含气量平面分布基本一致,认为焦作煤田山西组东南部为泥页岩勘探开发有利区。In allusion to the Shanxi Formation argillutite reservoir in the Jiaozuo coalfield,Henan Province,through tested and analyzed data from twenty more boreholes have carried out reservoir feature analysis.By volumetric method has carried out argillutite gas content(adsorbed gas plus free gas)computation and found that the argillutite gas content in the coalfield is 0.99~2.81m^(3)/t,average 1.87 m^(3)/t;plane distribution features showing high in the southeast and low in the northwest.Combined with fundamental geological attribute,optimized buried depth,thickness,organic matter content,brittleness and gas content of argillutite reservoir in the study area as workability assessment indices have carried out analysis for workability of Shanxi Formation argillutite in the coalfield.The result has shown that its workable index is 0.213~0.758,average 0.451.The planar representations have high in the southeast,low in the northwest,lowest in the west,essentially in agreement with argillutite gas content plane distribution,considered that Shanxi Formation in Jiaozuo coalfield southeast part can be the favorable area of argillutite exploration and exploitation.

关 键 词：泥页岩 含气量 资源可采性评价 山西组 焦作煤田 

分 类 号：P618.13[天文地球—矿床学] TE37[天文地球—地质学]