摘要
通过实践和理论上的分析与研究,认为在现有条件下,只有选择合适的配用钻杆,才能增加螺杆钻具的有效工作深度,提高其工作效率,并减轻泵的工作负荷.
Through practice and theoretical analysis it is found that under conditions now available only relying upon the suitable selection of fitted drilling rod can the effective working depth of screwdrilling tool be increased. At the same time its drilling efficiency could be raised the load capacityof the pump reduced.
出处
《地质与勘探》
CAS
CSCD
北大核心
1990年第11期60-63,共4页
Geology and Exploration
