The Open Petroleum Engineering Journal


ISSN: 1874-8341 ― Volume 12, 2019

Improved Prediction Model for Determining the Lost Gas Content of Extreme-soft and Outburst-prone Coal Seam

The Open Petroleum Engineering Journal , 2014, 7: 119-124

Xu Dong-fang, Feng Tao, Qin Zuo-ya, Yang Jing

Central South University/ Hunan Provincial Coal Science Research Institute, Hunan Changsha 410004, China.

Electronic publication date 31/12/2014
[DOI: 10.2174/1874834101407010119]


Few study has been carried out on the desorption rules of extreme-soft and outburst-prone coal in south of China, especially coal from Hunan Province of which the value of “f” is normally less than 0.2. Desorption experiments are conducted on the coal samples from Hongwei and Jiahe Mines in Hunan Province, and the following phenomena can be observed: the calculating mean error by √t method and power function method of Hongwei coal samples are 29.68% and 68.33%, 28.55% and 70.28% of Jiahe , the calculating result by the two methods is always lower. After comparison we find that the √t method is more precise than power function method, so calculation method is improved based on √t method, mean error of gas content determination by the new method in experiment and coal mine are 6.88% and 5.24%, both less than 10%.

Download PDF

Track Your Manuscript:


"I have to express my sincere appreciation for your hard and professional work. Thank you very much!"

Si Zhang
Institute for Strength and Vibration of Mechanical Structures,
Yangtze University, Jingzhou,
Hubei Province,

"My experiences in publishing a paper with Bentham Open is good. I must say that the speed of publication in The Open Petroleum Engineering Journal is very fast. It takes only two month for the pioneer reviewing process. The delay was caused by me. And what’s more, the publisher’s office is quite helpful. I guess they are dealing with thousands emails every week, but they process my request in a very short period of time."

Xin Ma
School of Science, Southwest Petroleum University, Chengdu, China

Browse Contents

Webmaster Contact:
Copyright © 2020 Bentham Open