(19)
(11) EP 2 920 401 A2

(12)

(88) Date of publication A3:
27.11.2014

(43) Date of publication:
23.09.2015 Bulletin 2015/39

(21) Application number: 13812204.9

(22) Date of filing: 22.10.2013
(51) International Patent Classification (IPC): 
E21B 7/14(2006.01)
E21B 33/138(2006.01)
 E21B 43/10(2006.01)
(86) International application number:
PCT/SK2013/050008
(87) International publication number:
WO 2014/065764 (01.05.2014 Gazette 2014/18)
(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: 24.10.2012 SK 500482012

(71) Applicants:
  • GA Drilling, a. s.
    917 01 Trnava (SK)
  • Kocis, Igor
    841 04 Bratislava (SK)
  • Kocis, Ivan
    841 05 Bratislava (SK)
  • Kristofic, Tomas
    841 07 Bratislava (SK)
  • Kocis, Dusan
    841 04 Bratislava (SK)

(72) Inventors:
  • KOCIS, Ivan
    841 04 Bratislava (SK)
  • KRISTOFIC, Tomá
    841 07 Bratislava (SK)
  • LONGAUER, Jaroslav
    832 02 Bratislava (SK)

(74) Representative: Litvakova, Edita 
Pluhová 78
831 03 Bratislava
831 03 Bratislava (SK)

   


(54) PROCESS OF FORMATION OF CASING BY ADDITIVE MANNER IN BOREHOLES AND DEVICE FOR ITS PERFORMING