(19)
(11) EP 2 734 701 A1

(12)

(43) Date of publication:
28.05.2014 Bulletin 2014/22

(21) Application number: 12828805.7

(22) Date of filing: 15.06.2012
(51) International Patent Classification (IPC): 
E21B 17/22(2006.01)
E21B 17/01(2006.01)
(86) International application number:
PCT/US2012/042571
(87) International publication number:
WO 2013/032560 (07.03.2013 Gazette 2013/10)
(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: 02.09.2011 US 201161530800 P
02.09.2011 US 201161530797 P
05.06.2012 US 201213488957

(71) Applicants:
  • Services Pétroliers Schlumberger
    75007 Paris (FR)

    FR 
  • Schlumberger Holdings Limited
    Tortola 1110 (VG)

    GB NL 
  • Schlumberger Technology B.V.
    2514 JG The Hague (NL)

    AL BG CZ DE DK GR HU IE IT LT NO PL RO SI SK TR 
  • Prad Research And Development Limited
    Tortola 1110 (VG)

    AL AT BE BG CH CY EE ES FI HR IS LI LU LV MC MK MT PT RS SE SK SM 

(72) Inventors:
  • PABON, Jahir
    Newton, Massachusetts 02460 (US)
  • WICKS, Nathan
    Somerville, Massachusetts 02144 (US)
  • HE, Jin
    Quincy, Massachusetts 02170 (US)
  • PIPCHUK, Douglas
    Calgary, Alberta T31 2ZA (CA)

(74) Representative: Ford, Michael Frederick 
Schlumberger Cambridge Research Limited High Cross Madingley Road
Cambridge CB3 0EL
Cambridge CB3 0EL (GB)

   


(54) METHODS AND APPARATUS FOR INCREASING THE REACH OF COILED TUBING