(19)
(11) EP 3 775 467 A1

(12)

(43) Date of publication:
17.02.2021 Bulletin 2021/07

(21) Application number: 19777204.9

(22) Date of filing: 26.03.2019
(51) International Patent Classification (IPC): 
E21B 10/62(2006.01)
E21B 10/55(2006.01)
E21B 10/32(2006.01)
(86) International application number:
PCT/US2019/023954
(87) International publication number:
WO 2019/191013 (03.10.2019 Gazette 2019/40)
(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

(30) Priority: 26.03.2018 US 201815935316
03.04.2018 US 201815944605
11.12.2018 US 201816216966
11.12.2018 US 201816216999
11.12.2018 US 201816217019
19.02.2019 US 201916279168
25.02.2019 US 201916284275

(71) Applicant: Novatek IP LLC
Provo, UT 84606 (US)

(72) Inventors:
  • DOWNTON, Geoffrey Charles
    Stonehouse, Gloucestershire GL10 3SX (GB)
  • MARSHALL, Jonathan
    Springville, Utah 84663 (US)
  • WOOLSTON, Scott Richard
    Spanish Fork, Utah 84660 (US)

(74) Representative: Schlumberger Intellectual Property Department 
Parkstraat 83
2514 JG Den Haag
2514 JG Den Haag (NL)

   


(54) BOREHOLE CROSS-SECTION STEERING