(19)
(11) EP 2 643 542 A2

(12)

(88) Date of publication A3:
08.11.2012

(43) Date of publication:
02.10.2013 Bulletin 2013/40

(21) Application number: 11804745.5

(22) Date of filing: 22.11.2011
(51) International Patent Classification (IPC): 
E21B 19/24(2006.01)
E21B 33/06(2006.01)
(86) International application number:
PCT/GB2011/052293
(87) International publication number:
WO 2012/069822 (31.05.2012 Gazette 2012/22)
(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

(30) Priority: 22.11.2010 GB 201019744

(71) Applicant: Hunting Energy Services (Well Intervention) Ltd
Aberdeen AB23 8EG (GB)

(72) Inventors:
  • BROWN, Gareth Edward George
    Kalamunda Western Australia 6076 (AU)
  • RITCHIE, Colin
    Aberdeenshire AB21 0AT (GB)

(74) Representative: Crosby, Wendy Agnes 
Murgitroyd & Company Scotland House 165-169 Scotland Street
Glasgow G5 8PL
Glasgow G5 8PL (GB)

   


(54) VALVE APPARATUS AND IMPROVED RAM