毕节市岔河区块6#煤储层特征分析及有利区评价

李臣臣; 崔雪璐; 尚雪芬; 赵楠楠

李臣臣,崔雪璐,尚雪芬,赵楠楠.毕节市岔河区块6#煤储层特征分析及有利区评价[J].贵州地质,2024,(3):285-292

毕节市岔河区块6#煤储层特征分析及有利区评价

Analysis on 6#Coal Reservoir Features and Favorable Exploration Area Evaluation in Chahe Block of Bijie City，Guizhou

投稿时间：2024-02-22

DOI：

中文关键词: 6#煤储层厚度埋深含气量煤体结构

英文关键词:6#coal reservoir Thickness Burial depth Gas-bearing potential Coal structure

基金项目:

作者	单位
李臣臣	济宁经济技术开发区高级中学，山东济宁272000
崔雪璐	济宁经济技术开发区高级中学，山东济宁272000
尚雪芬	济宁经济技术开发区高级中学，山东济宁272000
赵楠楠	济宁经济技术开发区高级中学，山东济宁272000

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中文摘要:

基于煤炭地质勘查，对岔河向斜南翼6#煤储层特征及有利区进行了研究。分析认为:该区块主力煤层6#煤层厚度较大，平均厚度为592 m；煤层气组分以CH4为主，该煤层平均含气量为2048 cm3/t，煤层含气潜力较大，6#煤层煤厚、含气量分布特征受次级构造影响很大。选取煤层单层厚度及埋深、含气量、煤体结构四项指标，初步圈定了煤层气有利勘探区，其中，一类有利区面积为3863 km2，二类有利区面积为3644 km2，煤层气资源量1227 亿m3，资源丰度为163 亿m3/km2。研究表明该区块具有一定的有利勘探面积，资源量较为丰富，适合进一步开展煤层气勘探工作。

英文摘要:

Based on coal geological exploration，it studies on 6#coal reservoir features and favorable exploration areaThe analysis considered that the principal 6# coal seam is rather thick in Chahe block with an average of 592 m，the major component of coal-bed gas is CH4The average CBM content of the principal coal seams is 2048 cm3/t，which dominated by CBMThe different structural positions of Chahe Syncline have a great influence on the distribution characteristics of coal thickness and the gas content of 6# coal seamOn the bases of comprehensive analysis，the CBM favorable exploration areas were preliminarily delineatedAmong them，the acreage of the most favorable and the second favorable area respectively is 3863 km2，3644 km2The amount of coalbed gas resources is 12270 million cubic meter，and the resource abundance is 163 million m3/km2The research shows that this block has a certain favorable exploration area and abundant resources，which is suitable for further CBM exploration

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