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Current Situation and Prospects of CBM Industry in China
Sun Maoyuan
(China United Coalbed Methane Co., Ltd., Beijing 100011)Abstract: China possesses rich CBM resources with broad development prospects. In this paper, the current situation of the development and utilization of CBM resources in China is discussed, and the existing problems are analyzed. Some suggestions and recommendations are also put forward regarding CBM development and utilization.
Keywords: CBM; development and utilization; current situation
Methane to Markets Partnership: Opportunities for Coal Mine
Methane Project Development
Pamela M. Franklin, Roger Fernandez and Clark C. Talkington
(U.S. Environmental Protection Agency, Washington)Abstract: Coal mine methane is one important source of global methane emission. The initiation of Methane to Markets Partnership aimed at identifying and developing relevant industrial projects in order to reduce the methane emission from various sectors such as coal mines, landfills, and oil and natural gas systems. The coal mine methane project development is among the three key components of Methane to Markets Partnership, and will play a major role in the implementation of Methane to Markets Partnership.
Kewwords: Coal mine methane; emission reduction; Methane to Markets Partnership
CMM Mine ¡ª A New Way to Recover CMM
Chai Zhaoxi1 and Yang Xiudong2
(1. State Administration of Work Safety, Beijing 100713;
2. National Institute for Occupational Safety, Beijing 100029)
Abstract: The CMM mine is a new way to recover CMM. In this paper, the CMM mine technology and the scheme of its application in Jincheng Coal Mining Area are introduced. The technical economics is also studied on the CMM mine.
Keywords: CMM mine; recover; Jincheng Coal Mining Area
Practice and Prospects of CMM Recovery in Sihe Mine of Jincheng
He Tiancai
(Jincheng Anthracite Mining Group Co., Ltd., Shanxi 048006)Abstract: The explorations and practice of CMM recovery in Sihe Mine of Jincheng Coal Mining Area are introduced. The feasibility of CMM ground recovery is analyzed from technical and economic perspectives, indicating that CMM ground recovery is the essential way to realize the high production and high efficiency in gassy mines.
Keywords: Sihe Mine; CMM; surface drainage
Study on Status of CBM Reserves and Improvement of CMM Recovery
Xu Longjun and Xian Xuefu
(Southwest China Resources Development and Environmental Disasters Control Key Lab of Chongqing University, Chongqing 400044)
Abstract: Among the CBM resources in China, some 35 trillion m3 are reserved less than 2000m in depth, featuring enormous development potential. In this paper, the basic researches are introduced on CBM reserves and improvement of CMM recovery to promote CBM resources development.
Keywords: CBM; reserve; recovery
CMM Recovery Technologies in Low-permeability Coal Seams of Jixi Coal Mining Area
Pei Mingshun
(Jixi Mining Group Company, Heilongjiang 158100)Abstract£ºThe large gas liberation during the coal mining, together with low-permeability coal seams, seriously threatens the mine production in Jixi Coal Mining Area. Currently, in order to control gas and enhance CMM recovery, various methods are adopted in Jixi Coal Mining Area such as upper roadway CMM drainage of low-permeability coal seams, upper near-horizontal hole drilling, coal seam plus-angle hole drilling, and roof large-diameter horizontal hole drilling, with satisfactory drainage results.
Keywords: Jixi Coal Mining Area; low-permeability coal seam; CMM; drainage
Abandoned Coal Mine Methane ¡ª A Noteworthy CBM resource
Cui Yongjun
( Xian Branch of China Coal Research Institute, Shaanxi 710054)
Abstract: Methane emitted from abandoned coal mines is a kind of greenhouse gas, and it is also a kind of CBM resource. In this paper, the characteristics, the methods of resource estimation, the current status of development and utilization, etc. of abandoned coal mine methane are introduced. From technical perspective, the main problems in respect to the development and utilization of abandoned coal mine methane and main follow-up tasks are presented.
Keywords: Abandoned coal mine£»methane£»CBM
Study on Microcrack Supporting Effect in Hydraulic Fracturing of Coal Seams
Li Yukui, Wang Fengming and Yao Xiaoqin
(Underground Special Operation Department of Zhongyuan Oilfield, Henan 457164)Abstract: Due to the physical properties of coal seams, a large amount of microcracks will be occur after hydraulic sand fracturing of coal seams. To fill and support microcracks using the supporting sand with suitable grain diameters not only reduces the filtrate loss but also helps conduct the microcrack pressure drop, which will strengthen the effect of hydraulic fracturing for production increase. In this paper, the above-mentioned viewpoint is argued, and the reasonable suggestions for hydraulic fracturing are put forward.
Keywords: Coal seam; hydraulic fracturing; microcrack; production increase
Drainage Technologies and Utilization Prospects of CMM in Hebi Coal Mining Area
Zhang Mingjie, Ma Geng and Yin Deyin
(Hebi Coal Industry Group Co., Ltd., Henan 458010)Abstract: In the light of the characteristics of gas reserve and the conditions of mining technologies in Hebi Coal Mining Area, based on the existing gas drainage and utilization technologies, the gas drainage and utilization technologies are evaluated and optimized for the single thick coal seam with high outburst and low permeability, which shows the broad prospects for gas drainage and utilization in Hebi Coal Industry Group Co., Ltd.. The combined coal and gas production with high efficiency is feasible in Hebi Coal Mining Area.
Keywords: Single thick coal seam; low permeability; CMM
The Application of the Pinnate Horizontal Multilateral Well Numerical Simulation Technology
in Daning Coalbed Gas Test Area
Zhang Yapu
(Institute of Porous Flow and Fluid Mechanics in Chinese Academy of Sciences, Hebei 065007)Abstract: The directional pinnate horizontal multilateral well has been a rising technology in recent years for increasing coalbed gas recovery. Its application is still in the test stage in China. China drilled the first pinnate horizontal multilateral well DNP02 in Daning test area. In this paper, the numerical simulation technology of the directional pinnate horizontal multilateral well is introduced briefly. Based on the geological conditions in Daning test area, the production capacity of the test well DNP02 is predicted, which will be used for the scheme design and economic evaluation in coalbed gas development.
Keywords: Coalbed gas; pinnate horizontal multilateral well; numerical simulation
Promotion of CMM Utilization in Huainan Coal Mining Area
by Clean Development Mechanism
Wang Yan
(Gas Utilization Branch of Huainan Coal Mining Group, Anhui 232001)Abstract£ºThe flexible GHG emission reduction mechanism in Kyoto Protocol brings about both new opportunities and challenges to CMM utilization. Huainan Coal Mining Area boasts rich CBM resources, and has developed a number of CDM projects in the field of CMM. Based on the specific projects, the experience on CMM utilization CDM projects in Huainan Coal Mining Area is introduced.
Keywords£ºClean Development Mechanism£»Huainan Coal Mining Area£»GHG£»emission reduction
