(19)
(11) EP 2 569 392 A2

(12)

(88) Date of publication A3:
12.04.2012

(43) Date of publication:
20.03.2013 Bulletin 2013/12

(21) Application number: 11795264.8

(22) Date of filing: 10.05.2011
(51) International Patent Classification (IPC): 
C09K 8/514(2006.01)
C09K 8/50(2006.01)
(86) International application number:
PCT/IB2011/052052
(87) International publication number:
WO 2011/158139 (22.12.2011 Gazette 2011/51)
(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: 17.06.2010 US 817881

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

    FR 
  • Schlumberger Holdings Limited
    Tortola 1110 (VG)

    GB NL 
  • Schlumberger Technology B.V.
    2414 The Hague (NL)

    AL BG CZ DE DK GR HU IE IT LT NO PL RO SI SK TR 
  • PRAD Research and Development Limited
    Road Town, Tortola 1110 (VG)

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

(72) Inventors:
  • LADVA, Hemant K.J.
    Missouri City Texas 77459 (US)
  • ABAD, Carlos
    Richmond Texas 77469 (US)
  • PANGA, Mohan K.R.
    Stafford Texas 77477 (US)
  • KUBALA, Gregory
    Houston Texas 77094 (US)

(74) Representative: Fortt, Simon Merton 
Schlumberger Cambridge Research Ltd IPL High Cross, Madingley Road
Cambridge, Cambridgeshire CB3 0EL
Cambridge, Cambridgeshire CB3 0EL (GB)

   


(54) DEGRADABLE MATERIAL FOR DIFFERENT OILFIELD APPLICATIONS