摘要
为了解决松软煤层筛管下放工艺过程中的钻孔轨迹随钻测量问题,通过对其工艺特性的研究,采用一种新型的偏心随钻测量机构,设计了一种外径20 mm,长度692 mm的小型探管,实现了不退钻测量并且不影响筛管下放,并在淮南张北矿进行了试验研究,结果表明:该套系统现场适应性好、数据准确、不影响筛管的下放、满足现场使用要求。
In order to solve the screen soft coal seam in the process of decentralization of borehole trajectory measurement while drilling,through the study of the characteristics of the process,a new type of eccentric drilling measuring mechanism is applied and a small probe diameter20mm length692mm tube is designed,to realize the back measur nonmagnetic eccentric mechanism miniature probe drilling trajectory measurement while drilling sieve tube decentralizationing and no affecting the screen decentralization,and also it is tested in Huainan Zhangbei Coal Mine.The result shows that the system has good adaptability and accurate data,the screen does not affect the decentralization and it meets the field requirements.
作者
曾来
ZENG Lai(Department of Resources and Survey Engineering, Chongqing Vocational Institute of Engineering Chongqing 402260)
出处
《工业安全与环保》
2018年第3期27-29,49,共4页
Industrial Safety and Environmental Protection
基金
"十三五"国家科技重大专项:"大直径高位长钻孔钻进技术及装备"项目(2016 ZX05045003-004)
关键词
无磁偏心机构
小型探管
钻孔轨迹
随钻测量
筛管下放
nonmagnetic eccentric mechanism
miniature probe
drilling trajectory
measurement while drilling
sieve tube decentralization
