(19)
(11) EP 3 283 728 A1

(12)

(43) Date of publication:
21.02.2018 Bulletin 2018/08

(21) Application number: 16718185.8

(22) Date of filing: 15.04.2016
(51) International Patent Classification (IPC): 
E21B 47/00(2012.01)
E21B 43/10(2006.01)
 E21B 47/01(2012.01)
(86) International application number:
PCT/US2016/027699
(87) International publication number:
WO 2016/168564 (20.10.2016 Gazette 2016/42)
(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

(30) Priority: 17.04.2015 US 201562149096 P

(71) Applicant: BP Corporation North America Inc.
Houston, TX 77079 (US)

(72) Inventors:
  • BARRILLEAUX, Mark, Francis
    Naperville, IL 60563 (US)
  • FOTI, David
    Naperville, IL 60563 (US)
  • HENDERSON, John
    Naperville, IL 60563 (US)
  • HENKENER, Jerry
    Naperville, IL 60563 (US)
  • LEONARD, Jerome
    Naperville, IL 60563 (US)
  • ROBINSON, Kyle
    Naperville, IL 60563 (US)
  • WALDRON, Mark
    Naperville, IL 60563 (US)

(74) Representative: Hamer, Christopher K. et al
Mathys & Squire LLP
The Shard 32 London Bridge Street London SE1 9SG
The Shard 32 London Bridge Street London SE1 9SG (GB)

   


(54) SYSTEMS AND METHODS FOR DETERMINING THE STRAIN EXPERIENCED BY WELLHEAD TUBULARS