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[1]王永龙,王振锋,卢卫永,等.瓦斯抽采钻孔钻屑气固耦合运移压力损耗分析[J].中国安全生产科学技术,2015,11(4):13-18.[doi:10.11731/j.issn.1673-193X.2015.04.002]
　WANG Yong-long,WANG Zhen-feng,LU Wei-yong,et al.pressure loss of drilling cuttings movement caused by gas-solid coupling in gas extraction borehole[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(4):13-18.[doi:10.11731/j.issn.1673-193X.2015.04.002]
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瓦斯抽采钻孔钻屑气固耦合运移压力损耗分析
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
11
期数:
2015年4期
页码:
13-18
栏目:
学术论著
出版日期:
2015-04-30

文章信息/Info

Title:
pressure loss of drilling cuttings movement caused by gas-solid coupling in gas extraction borehole
作者:
王永龙1; 2; 王振锋1; 卢卫永1; 宋维宾1
（1. 河南理工大学 能源科学与工程学院， 河南 焦作 454000; 2.煤炭安全生产河南省协同创新中心,河南 焦作 454000）
Author(s):
WANG Yong-long1; 2;  WANG Zhen-feng1;  LU Wei-yong1;  SONG Wei-bin1
(1. School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454000, China; 2. Collaborative Innovation Center of Coal Work Safety, Jiaozuo Henan 454000, China)
关键词:
瓦斯抽采钻孔; 气固两相流; 风压损耗; 钻孔收缩
Keywords:
gas extraction borehole;  gas-solid two-phase flow;  air pressure loss;  borehole shrinkage
分类号:
X936
DOI:
10.11731/j.issn.1673-193X.2015.04.002
文献标志码:
A
摘要:
基于气固两相流体力学理论，对瓦斯抽采钻孔内钻屑运移气固两相流压损、钻杆腔体接头处局部压损、钻孔收缩和“钻穴”引起的压损进行分析，结合工程案例，对钻进系统的风压损耗进行计算和分析。结果表明，钻进系统的风压损耗主要为气固两相流的摩擦压损，开放型钻穴对钻进系统的压损影响较小，填充型钻穴会带来较大的压力损耗。结合煤层地质条件和钻孔施工工艺参数，应用文中方法计算钻进系统风压损耗，为优化压风系统提供科学依据。
Abstract:
Based on gas-solid two-phase fluid dynamics theory, the drilling cuttings movement pressure loss caused by gas-solid flow in borehole, the partial pressure loss generated by air flow through the joint diameter reducing position, borehole shrinkage position and drilling cave area of the gas extraction borehole were analyzed. Combining with engineering case, the air pressure loss of drilling system was calculated and analyzed. The results showed that the friction pressure loss of gas-solid flow is the main components of air pressure loss in drilling system. Opened-type drilling cave has fewer impacts on air pressure loss of drilling system, but filled-type drilling cave can form great pressure loss. According to the geological conditions of coal seam and drilling design parameters, the method was applied to calculate the air pressure loss of drilling system. It can provide the scientific basis for optimizing the compressed air system.

参考文献/References:

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备注/Memo

备注/Memo:
国家“十二五”科技支撑计划项目（2013BAA03B02）；河南省高等学校重点科研项目(15A440002); 河南理工大学博士基金资助项目（B2014-053）
更新日期/Last Update: 2015-04-30