Influencing factors to extraction efficiency of surface goaf hole

Meitan Xuebao/Journal of the China Coal Society

Volumn 34, Issue 7, 2009, Pages 942-946

  Li, Ri Fu ^a,b   Liang, Yun Pei ^b   Zhang, Jun ^b  

^a CHONGQING UNIVERSITY   (China)

^b CHINA COAL RESEARCH INSTITUTE   (China)

Author keywords

Efficiency of borehole; Gas extraction in goaf; Nature factor; Parameter factor; Surface borehole

Indexed keywords

EXTRACTION EFFICIENCIES; FIELD DATA; GAS EXTRACTION IN GOAF; GAS EXTRACTIONS; INFLUENCING FACTOR; NATURE FACTOR; NUMERICAL SIMULATION; PARAMETER FACTOR; RESEARCH RESULTS; SPACE BETWEEN; WORKING EFFICIENCY;

BOREHOLES; MINING;

EXTRACTION;

EID: 67849087028     PISSN: 02539993     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (9)

1. Huainan Mining (Group) Co. Ltd., Chongqing Branch of China Coal Research Institute, CSIRO Exploration and Mining. Study on drainage technology of relieved gas from terrane influcened by minming with surface borehole[R]. Huainan, 2006.
2. Hu Qianting, Liang Yunpei, Lin Fujin. Test and study on surface gas drilling technology from borehole in the goaf[J]. China Coalbed Methane, 2006, 3(2): 3-6.
3. Li Shugang. Gas delivery feature and its control influenced by movement of the surrounding rock in fully-mechanized top coal caving[J]. Chinese Journal of Rock Mechanics and Engineering, 2000, 19(6): 809-810.
4. Lan Zequan, Zhang Guoshu. Numerical simulation of gas concentration field in multi-source and multi-congruence goaf[J]. Journal of China Coal Society, 2007, 32(4): 396-401.
5. Wang Quanlong. Influencing factors and it's control to gas effusion from goaf near by working face[J]. Coal Engineering, 2006(9): 45-47.
6. Xu Jialin, Qian Minggao. Study on drainage of relieved methane from overlying coal seam far away from the protective seam by surface well[J]. Journal of China University of Mining and Technology, 2000, 29(1): 76-81.
7. Zhang Dongming, Liu Jianzhong. Regularity on the distribution of gas moving in gob area of coal mine[J]. The Chinese Journal of Geological Hazard and Control, 2003, 14(1): 81-84.
8. Wang Changming. Study on the law of movement and distribution of gas in semi-enclosed goaf on the condition of surface hole drainage[D]. Chongqing: Chongqing Research Institute of China Coal Research Institute, 2007.
9. Jing Duosheng, Xu Chuantian. Test of gas drawing technology by ground drilling hole[J]. Coal Technology, 2006, 25(6): 84-85.