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 |
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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592 m;煤层气组分以CH4为主,该煤层平均含气量为2048 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3863 km2,二类有利区面积为3644 km2,煤层气资源量1227 亿m3,资源丰度为163 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 areaThe analysis considered that the principal 6# coal seam is rather thick in Chahe block with an average of 592 m,the major component of coal-bed gas is CH4The average CBM content of the principal coal seams is 2048 cm3/t,which dominated by CBMThe different structural positions of Chahe Syncline have a great influence on the distribution characteristics of coal thickness and the gas content of 6# coal seamOn the bases of comprehensive analysis,the CBM favorable exploration areas were preliminarily delineatedAmong them,the acreage of the most favorable and the second favorable area respectively is 3863 km2,3644 km2The amount of coalbed gas resources is 12270 million cubic meter,and the resource abundance is 163 million m3/km2The 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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