(19)
(11) EP 2 807 336 A2

(12)

(88) Date of publication A3:
13.03.2014

(43) Date of publication:
03.12.2014 Bulletin 2014/49

(21) Application number: 13705854.1

(22) Date of filing: 24.01.2013
(51) International Patent Classification (IPC): 
E21B 47/12(2012.01)
(86) International application number:
PCT/US2013/022875
(87) International publication number:
WO 2013/112674 (01.08.2013 Gazette 2013/31)
(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

(30) Priority: 25.01.2012 US 201261590483 P

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

(72) Inventors:
  • BARRILLEAUX, Mark, Francis
    Naperville, IL 60563 (US)
  • HURST, Gary
    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, METHODS, AND DEVICES FOR MONITORING WELLBORE CONDITIONS