Millenium initiative hails steerable drill.

Antzeko izenburuak

• Formulas and calculations for drilling operations /
  nork: 172059 Samuel, G. Robello
  Argitaratua: (c201)
• Drilling engineering /
  nork: Azar, Jamal J., 1937-, et al.
  Argitaratua: (2007)
• Managing drilling operations/
  nork: 463486 Fraser, Ken, et al.
  Argitaratua: (1991)
• Fundamentals of drilling : technology and economics/
  nork: 419712 Kennedy, John L.
  Argitaratua: (1983)
• Environmentally safe drilling practices /
  nork: 501278 Navarro, Armando
  Argitaratua: (c199)