(19)
(11) EP 3 807 490 A1

(12)

(43) Date of publication:
21.04.2021 Bulletin 2021/16

(21) Application number: 18922842.2

(22) Date of filing: 12.06.2018
(51) International Patent Classification (IPC): 
E21B 17/10(2006.01)
(86) International application number:
PCT/IB2018/054235
(87) International publication number:
WO 2019/239180 (19.12.2019 Gazette 2019/51)
(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:
KH MA MD TN

(71) Applicant: Abu Dhabi National Oil Company
Abu Dhabi (AE)

(72) Inventors:
  • AL AMERI, Fahed Salem Saleh Awadh
    Abu Dhabi (AE)
  • AL AWADHI, Farhaad Khaled Saeed Mohamed
    Abu Dhabi (AE)
  • IRSA, Juraj
    The Woodlands, TX 77382 (US)
  • VIRENE, Patrick
    Cypress, TX 77433 (US)

(74) Representative: Bardehle Pagenberg Partnerschaft mbB Patentanwälte Rechtsanwälte 
Prinzregentenplatz 7
81675 München
81675 München (DE)

   


(54) ADVANCED STABILIZING SYSTEM FOR DEEP DRILLING