摘要
介绍了核磁共振成像技术的成像机理以及在煤层气开采方面的应用,指出储层渗透率是反映煤层气运移规律的重要参数,它与通过核磁共振实验得到的核磁渗透率具有良好的相关性,介绍了求解核磁共振渗透率的计算方法,结果表明采用核磁共振技术对煤层气赋存和运移规律进行实时、定量研究分析更为准确、可靠,因此利用核磁共振成像技术研究煤层气赋存和运移规律为提高煤层气采收率开辟了崭新的研究手段和技术途径,对现场实践具有一定的指导作用。
The imaging mechanism and application in coal bed methane are presented. It is indicated that the permeability of coal seams, as an important parameter that shows the transport rule of coal bed methane, has favorable relativity with the NMRI permeability. The calculation means of NMRI permeability is put forward. The results show that the quantitative analysis and real-time observation of the storage and transport of coal bed methane by NMRI are more effective and accurate. So NMRI research on the storage and transport of coal bed methane supplies new means and approach to increase the recovery ratio of coal bed methane, which will play an important role in practice.
出处
《辽宁工程技术大学学报（自然科学版）》
EI
CAS
北大核心
2005年第5期674-676,共3页
Journal of Liaoning Technical University (Natural Science)
基金
国家自然科学基金重大资助项目(50490275)
国家自然科学基金面上资助项目(50374040)
关键词
NMRI
煤层气
赋存和运移
核磁渗透率
储层渗透率
NMRI
coal bed methane
storage and transport
NMR permeability
permeability of coal seams
