[1]李定启,邓广涛,李海贵,等.钻杆内下套管防治软煤层钻孔塌孔技术[J].中国安全生产科学技术,2015,11(2):95-98.[doi:10.11731/j.issn.1673-193x.2015.02.015]
LI Ding-qi,DENG Guang-tao,LI Hai-gui,et al.Technology of preventing drilling hole collapse in soft coal seam by inserting casing in drill pipe[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(2):95-98.[doi:10.11731/j.issn.1673-193x.2015.02.015]
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钻杆内下套管防治软煤层钻孔塌孔技术
LI Ding-qi,DENG Guang-tao,LI Hai-gui,et al.Technology of preventing drilling hole collapse in soft coal seam by inserting casing in drill pipe[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(2):95-98.[doi:10.11731/j.issn.1673-193x.2015.02.015]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 11
- 期数:
- 2015年2期
- 页码:
- 95-98
- 栏目:
- 职业安全卫生管理与技术
- 出版日期:
- 2015-02-28
文章信息/Info
- Title:
- Technology of preventing drilling hole collapse in soft coal seam by inserting casing in drill pipe
- Keywords:
- soft coal seam; preventing drilling hole collapse; gas extraction; inserting casing in drill pipe
- 分类号:
- X936
- 文献标志码:
- A
- 摘要:
- 为了防止软煤层钻孔在瓦斯抽采过程中短时间内塌孔堵死，提高钻孔瓦斯抽放效率，对软煤层钻孔钻杆内下套管设备和工艺方法进行了分析和研究。通过对比分析常规下套管方式、原有钻杆内下套管方式和改进后钻杆内下套管方式的在软煤层试验，得出以下结论：采用钻杆内下套管设备下套管的长度远大于采用常规钻进方式下套管的长度；钻杆内下套管设备的钻头和钻杆设计对钻进和下套管长度影响较大，设计时钻头直径大小应适中，钻杆应尽量采取内平丝扣连接；采用钻杆内下套管方式的百米钻孔瓦斯抽放量要远大于普通钻进下套管钻孔的百米钻孔瓦斯抽放量。
- Abstract:
- In order to prevent collapse and block of drilling hole in short time when conducting gas extraction in soft coal seam, and improve the gas drainage efficiency of drilling, the equipments and methods of inserting casing in drill pipe for soft coal seam were analyzed and studied. By comparing and analyzing the experimental results in soft coal seam with conventional technology of casing running, original technology of inserting casing in drill pipe and improved technology of inserting casing in drill pipe, it showed that: the length of inserting casing by the improved technology is much greater than that by conventional technology, and the design of drill bit and drilling rob on equipment of inserting casing in drill pipe have a greater influence on the drilling and length of inserting casing. In the design, the diameter of drilling bit should be moderate and the smooth joint connection should be adopted on drilling rob. The gas drainage capacity of drilling per hundred meters by this technology is much greater than that by ordinary technology.
参考文献/References:
［1］翟成,李全贵,孙臣,等. 松软煤层水力压裂钻孔失稳分析及固化成孔方法［J］. 煤炭学报,2012,37 (9):1431-1433
ZHAI Cheng,LI Quan-gui,SUN Chen,et al. Analysis on borehole instability and control method of pore-forming of hydraulic fracturing in soft coal seam［J］. Journal of China Coal Society, 2012,37 (9):1431-1433.
［2］李家春,李玉刚,韩锦锦.突出松软煤层瓦斯预抽钻进具螺旋钻杆的轻量化设计［J］. 煤 矿 机 械,2014,25(5):29-30
LI Jia-chun, LI Yu-gang, HAN Jin-jin. Lightweight design of spiral drill pipe of gas extraction drilling tools in soft and out burst coal seam［J］. Coal Mine Machinery, 2014,25(5):29-30
［3］王法凯, 蒋承林, 吴爱军,等. 特别破碎测压围岩环境改造工艺技术研究［J］. 中国安全生产科学技术, 2010,6(3):24-26
WANG Fa-ka, JIANG Cheng-lin, WU Ai-jun, et al. Study on particular broken rock manometry of environmental reform process technology［J］. Journal of Safety Science and Technology, 2010,6(3):24-26
［4］徐庆武,王国君,董力,等. 瓦斯抽放钻孔护孔技术探讨［J］. 煤矿安全, 2007,(1):39-41
XU Qing-mu, WANG Guo-jin, DONG Li, et al. Gas drainage borehole protection technology［J］. Coal Mine Safety, 2007,(1):39-41
［5］陈学华,沈海鸿,王善勇. 巷道围岩自稳结构原理及其影响因素研究［J］. 辽宁工程技术大学学报(自然科学版),2002,21(3):261-263
CHEN Xue-hua，SHEN Hai-hong，WANG Shan-yong. The research on theoryand influence factors of self-sustaining structure of roadway surroundingrock［J］.Journal of Liaoning Technical University (Natural Science),2002,21(3): 261-263
［6］王振,梁运培,金洪伟. 防突钻孔失稳的力学条件分析［J］. 采矿与安全工程学报,2008,25(4):444-448
WANG Zhen,LIANG Yun-pei,JIN Hong-wei. Analysis of mechanics conditions for instability of outburst-preventing borehole ［J］. Journal of Mining ＆ Safety Engineering,2008,25(4): 444-448
［7］周松元,赵军,刘学服,等. 严重喷孔松软煤层成孔工艺与装备研究［J］. 湖南科技大学学报: 自然科学版,2011,26(4): 11-16
ZHOU Song-yuan, ZHAO Jun,LIU Xue-fu, et al. Study on the drilling craft and the accessory for the soft and out bursting coal seam［J］. Journal of Hunan University of Science&Technology(Natural Science Edition),2011,26(4): 11-16
［8］王永龙,孙玉宁,翟新献,等. 松软突出煤层新型钻进技术研究［J］.采矿与安全工程学报,2012,29(2):289-294
WANG Yong-long,SUN Yu-ning,ZHAI Xin-xian, et al.Study on new drilling technology in soft and outburst seam［J］. Journal of Mining ＆ Safety Engineering, 2012,29(2):289 -294
［9］殷新胜,凡东,姚克,等.松软突出煤层中风压空气钻进工艺及配套装备［J］.煤炭科学技术,2009,37(9): 72-74
YIN Xin-sheng, FAN Dong, YAO Ke, et al. Medium pressure compressed air drilling technique and matched equipment in soft and outburst seam［J］. Coal Science and Technology,2009,37(9): 72-74
［10］姚向荣,程功林,石必明.深部围岩遇弱结构瓦斯抽采钻孔失稳分析与成孔方法［J］.煤炭学报,2010,35(12): 2073-2081
YAO Xiang-rong,CHENG Gong-lin,SHI Bi-ming. Analysis on gas extraction drilling instability and control method of pore-forming in deep surrounding-rock with weak structure［J］. Journal of China Coal Society, 2010,35(12): 2073-2081
相似文献/References:
备注/Memo
- 备注/Memo:
- 山西省煤层气联合基金资助项目（2012012010）；国家自然基金资助项目（51204173）；河南理工大学博士基金资助项目（B2012-026）
