ANALYSIS OF METHOD REDUCING COST OF DEEP-HOLE DRILLING COST
WANG You-feng;No.313 Geological Part of Bureau of Geology and Mineral Exploration of Anhui Province;
Combined with practice of deep-hole drilling in recent years,this paper analyzed the composition of the drilling cost,discussed the influence factors and put forward a way of reducing the cost.
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.