Next Article in Journal
The improved Hydrogen Storage Performances of the Multi-Component Composite: 2Mg(NH2)2–3LiH–LiBH4
Previous Article in Journal
Modeling on the Effect of Coal Loads on Kinetic Energy of Balls for Ball Mills
Article Menu

Export Article

Open AccessArticle
Energies 2015, 8(7), 6881-6897; doi:10.3390/en8076881

Coal and Coalbed Methane Co-Extraction Technology Based on the Ground Movement in the Yangquan Coalfield, China

1
School of Mines, Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
2
State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
3
Post-Doctoral Research Station, Yangquan Coal Industry (Group) CO., LTD, Yangquan 045000, Shanxi, China
*
Author to whom correspondence should be addressed.
Academic Editor: Vasily Novozhilov
Received: 26 May 2015 / Revised: 30 June 2015 / Accepted: 2 July 2015 / Published: 9 July 2015
View Full-Text   |   Download PDF [1245 KB, uploaded 9 July 2015]   |  

Abstract

The Yangquan coalfield is one of the typical highly gassy mining areas in China. However, its coal seams are of lower permeability, which are not conductive to coalbed methane (CBM) drainage. In this study, based on the theory of the ground movement, we analyzed the principle of coal and CBM coextraction in the Yangquan coalfield, and established the technology system of coal and CBM coextraction which was further implemented in the coal and CBM coextraction in the Yangquan coalfield. The coal and CBM coextraction technologies based on the “pressure-relief and permeability-increase” effect caused by the mining overburden movement can optimally ensure the safe and efficient mining and improve the gas drainage rate. A series of developed coal and CBM coextraction technologies for the Yangquan coalfield were mainly characterized by the high-level gas drainage roadway. This reached a maximum gas drainage amount of 270,000 m3/day for single drainage roadway and a pressure-relief gas drainage rate of >90%. Those technologies significantly improved the gas drainage effect safely and efficiently achieving the coal and CBM coextraction. View Full-Text
Keywords: ground movement; Yangquan coalfield; coal and coalbed methane coextraction; gas drainage; key strata movement ground movement; Yangquan coalfield; coal and coalbed methane coextraction; gas drainage; key strata movement
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Hu, G.; Xu, J.; Zhang, F.; Zhao, C.; Qin, W.; Zhu, Y. Coal and Coalbed Methane Co-Extraction Technology Based on the Ground Movement in the Yangquan Coalfield, China. Energies 2015, 8, 6881-6897.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top