摘要
通过分析不同采样地点煤心样品在自然解吸过程中的煤层气组分,对煤层气中重烃浓度与煤化程度、煤层埋深的关系进行了研究,结果表明:中等煤化程度的煤对应的煤层气中重烃浓度较高,低、高煤化程度的煤对应的煤层气中几乎不存在重烃;采样地点相近、煤化程度相近的样品,煤层埋深较浅时,深度对重烃浓度的影响不大,但是当煤层埋深达到一定值时,较深样品中重烃浓度明显大于较浅样品中重烃浓度。
Through analyzing the coalbed components of coal sample in different sampling place in the process of natural desorption,the relationship among heavy hydrocarbon in coalbed gas,and degree of coalification,and coalbed depth were studied. The result indicated that,coalbed gas corresponding coal of medium degree of coalification degree had higher heavy hydrocarbon content,and corresponding coal of low and high degree of coalification degree had hardly heavy hydrocarbon. If samples from similar locations and similar coalification degree,depth have little influence on hydrocarbon content when it was shallow,but heavy hydrocarbon content was significantly higher in deeper coalbed when coalbed depth reached a certain value.
出处
《中州煤炭》
2015年第8期109-111,115,共4页
Zhongzhou Coal
基金
中国煤炭科工集团有限公司科技创新基金项目(2014MS010)
中煤科工集团西安研究院有限公司科技创新基金项目(2013XAYPT003)
关键词
重烃浓度
镜质体反射率
煤层埋深
heavy hydrocarbon content
vitrinite reflectance
coalbed buried depth
