(19)
(11) EP 3 400 359 A1

(12)

(43) Date of publication:
14.11.2018 Bulletin 2018/46

(21) Application number: 16884094.0

(22) Date of filing: 06.01.2016
(51) International Patent Classification (IPC): 
E21B 17/02(2006.01)
(86) International application number:
PCT/US2016/012361
(87) International publication number:
WO 2017/119878 (13.07.2017 Gazette 2017/28)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA MD

(71) Applicant: Isodrill, Inc.
Bellville, TX 77418 (US)

(72) Inventors:
  • BARGACH, Saad
    Bellville TX 77418 (US)
  • BONNER, Stephen, D.
    Sugar Land TX 77479 (US)
  • NOLD, Raymond, V., III
    Beasley TX 77917 (US)
  • MASSEY, James, P.
    Breckenridge CO 80424 (US)
  • BRUNETTI, Jon, A.
    Katy TX 77493 (US)

(74) Representative: Sessford, Russell 
Forresters IP LLP Skygarden Erika-Mann-Strasse 11
80636 München
80636 München (DE)

   


(54) ROTARY STEERABLE DRILLING TOOL