(19)
(11) EP 2 766 560 A1

(12)

(43) Date of publication:
20.08.2014 Bulletin 2014/34

(21) Application number: 12840174.2

(22) Date of filing: 04.10.2012
(51) International Patent Classification (IPC): 
E21B 23/10(2006.01)
E21B 34/14(2006.01)
(86) International application number:
PCT/CA2012/050704
(87) International publication number:
WO 2013/053055 (18.04.2013 Gazette 2013/16)
(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: 11.10.2011 US 201161545860 P

(71) Applicant: Packers Plus Energy Services Inc.
Calgary, Alberta T2P 2V7 (CA)

(72) Inventors:
  • THEMIG, Daniel Jon
    Calgary, Alberta T2W 5P9 (CA)
  • COON, Robert Joe
    Missouri City, Texas 77459 (US)

(74) Representative: Böhm, Brigitte et al
Weickmann & Weickmann Patentanwälte Postfach 86 08 20
81635 München
81635 München (DE)

   


(54) DOWNHOLE ACTUATION BALL, METHODS AND APPARATUS