Relationship between the Maximum Vitrinite Reflectance and the Elastic Parameters of Coal: A Lab. Ultrasonic Measurement of 6 Metamorphic Kinds of Coals
详细信息
- 责任者：Wang Yun (Institute of Geochemistry ; Chinese Academy of Science ; Guiyang 550002 ; China) ; Zhang Yugui
- 刊名：Chinese Journal of Geophysics
- 出版年：2013
- 卷期：56(6)
- 关键词：镜质体反射率 ; vitrinite reflectance ; 煤 ; coal
- 页码：p.2116-2122
- 图表：8 illus., 2 tables, 27 refs.
- 分类号：1600
- issnNo：ISSN0001-5733
- isbnNo：CN11-2074/P
摘要
The maximum vitrinite reflectance of coal is an important parameter to estimate coal rank and distinguish coal quality, which has important application in methane exploration and production, coal mining, chemical and metallurgical industry. Sampling in the field and measuring in lab is the most conventional method to get coal rank and its vitrinite reflectance. In this paper, the relationships between maximum vitrinite reflectance with seismic properties and elastic parameters were introduced through reflectance and ultrasonic measurement in the lab on six different metamorphic kinds of coals, including maximum vitrinite reflectance, volatile matter percent, traveling time of pressure wave and shear wave. Through analyzing these testing data, it can be concluded that there is a fine correlation between the maximum vitrinite reflectance and seismic properties, especially the density and P-wave velocity. And it can be deduced that it will be possible to predict coal rank with seismic data.
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