(19)
(11) EP 3 129 579 A1

(12)

(43) Date of publication:
15.02.2017 Bulletin 2017/07

(21) Application number: 15721048.5

(22) Date of filing: 08.04.2015
(51) International Patent Classification (IPC): 
E21B 21/10(2006.01)
E21B 3/00(2006.01)
 E21B 19/16(2006.01)
(86) International application number:
PCT/NL2015/050228
(87) International publication number:
WO 2015/156671 (15.10.2015 Gazette 2015/41)
(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

(30) Priority: 08.04.2014 EP 14163925

(71) Applicant: Huisman Well Technology B.V.
3115 HH Schiedam (NL)

(72) Inventors:
  • BAKKER, Tjerk Bartele
    NL-7901 TA Hoogeveen (NL)
  • VAN OG, Gerardus Godefridus Johannes
    NL-7901 TA Hoogeveen (NL)
  • WIJNING, Dieter
    NL-7901TA Hoogeveen (NL)
  • ROODENBURG, Joop
    NL-7901 TA Hoogeveen (NL)
  • BAKKER, Thomas Walburgis
    NL-7901 TA Hoogeveen (NL)

(74) Representative: V.O. 
P.O. Box 87930 Carnegieplein 5
2508 DH Den Haag
2508 DH Den Haag (NL)

   


(54) IMPLEMENT FOR USE IN MAKING UP AND BREAKING OUT OF A STRING OF A WELL