摘要
通过分析和顺区块15#煤层含气量在横向上和纵向上的分布变化特征,发现:1000米以浅15#煤层含气量分布与煤层埋深相关关系不明显,受构造陡坡带影响较大;深部随埋深加深,含气量有增大的趋势。陡坡带、顶板泥岩和煤层厚度共同控制15#煤层含气量横向上的变化;煤的镜质组含量和灰分产率的非均质性控制了单井15#煤层含气量纵向上的差异。
By analyzing the lateral and vertical distribution and change characteristics of gas content of No.15 Coal Seam, the result shows that the correlation between gas content distribution and buried depth of coal seam is not obvious when the buried depth is less than 1000m, and the steep structural zone has great influence on gas content of No.15 coal seam. When the buried depth of coal seam become deeper, the gas content has increasing trend. Steep slope zone, thickness of roof mudstone and thickness of coal seam control the lateral change of gas content of No.15 coal seam together. The vitrinite content of coal and the heterogeneity of ash content control the vertical change of gas content of No.15 coal seam.
出处
《中国煤层气》
2013年第1期6-9,共4页
China Coalbed Methane
关键词
含气量
分布特征
陡坡带
顶板
煤厚
镜质组含量
灰分产率
Gas content
distribution characteristics
steep slope zone
roof
thickness of coal seam
vitrinite content
ash content
