Studies on Improving the Drilling Efficiency for Deep Wells - Techniques for estimating downhole conditions and for improving PDC bit design for hard rock drilling -

Authors=KARASAWA Hirokazu, MISAWA Shigeo, OHNO Tetsuji, KOSUGI Masayuki, YOSHIDA Satoru

Journal/Book_names=Report of the National Institute for Resources and Environment

number=27

pages=iv,72

Publish_year=1999

Publish_Country=JPN

Publisher=National Institute for Resources and Environment

Language_of_Text=JA

Language_of_Abs=EN, JA

ISSN=09169989

ID=199901009