Advantages of using top-drive-system for high temperature geothermal well drilling

Seiji Saito, Koji Kitao, Kazuhiro Saeki, Yuko Suto

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


The advantages of using a Top-Drive Drilling System (TDS), for the high temperature geothermal well WD-1a drilled in Kakkonda, Japan, was introduced in 1995. Since that time, TDS has become more popular with geothermal developers and drilling companies. Five geothermal wells were drilled using a TDS in 2002 and a total of 13 geothermal wells have been drilled using TDS since 1995 in Japan. First, this paper reviews the advantages of using TDS in Kakkonda, and then discusses other drilling experience using TDS in Sumikawa and Okuaizu geothermal areas.

Original languageEnglish
Pages (from-to)183-187
Number of pages5
JournalTransactions - Geothermal Resources Council
Publication statusPublished - 2003
EventInternational Collaboration for Geothermal Energy in the Americas - Geothermal Resources Counsil: 2003 Annual Meeting - Morelia, Michoacan, Mexico
Duration: 2003 Oct 122003 Oct 15


  • Bit cooling
  • Bit life evaluation
  • Drilling
  • High-temperature
  • Japan
  • Kakkonda
  • Okuaizu
  • Sumikawa
  • Top drive system


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