(19)
(11) EP 3 283 727 A1

(12)

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

(21) Application number: 15805067.4

(22) Date of filing: 24.11.2015
(51) International Patent Classification (IPC): 
E21B 44/04(2006.01)
E21B 45/00(2006.01)
 E21B 49/00(2006.01)
(86) International application number:
PCT/US2015/062437
(87) International publication number:
WO 2016/167841 (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: 14.04.2015 US 201562147252 P

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

(72) Inventors:
  • MAJIDI, Reza
    Naperville, IL 60563 (US)
  • ALBERTIN, Martin
    Naperville, IL 60563 (US)

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

   


(54) SYSTEM AND METHOD FOR DRILLING USING PORE PRESSURE