(19)
(11) EP 2 810 101 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
17.10.2018 Bulletin 2018/42

(45) Mention of the grant of the patent:
27.06.2018 Bulletin 2018/26

(21) Application number: 13742984.1

(22) Date of filing: 25.01.2013
(51) International Patent Classification (IPC): 
G01V 3/26(2006.01)
G06F 19/00(2018.01)
 G01V 3/38(2006.01)
(86) International application number:
PCT/US2013/023108
(87) International publication number:
WO 2013/116099 (08.08.2013 Gazette 2013/32)

(54)

IMPROVING EFFICIENCY OF PIXEL-BASED INVERSION ALGORITHMS

VERBESSERUNG DER EFFIZIENZ PIXELBASIERTER INVERSIONSALGORITHMEN

AMÉLIORATION DE L'EFFICACITÉ D'ALGORITHMES D'INVERSION À BASE DE PIXELS

(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: 30.01.2012 US 201261592376 P

(43) Date of publication of application:
10.12.2014 Bulletin 2014/50

(73) Proprietors:
  • Services Pétroliers Schlumberger
    75007 Paris (FR)
    Designated Contracting States:
    FR 
  • Schlumberger Holdings Limited
    Road Town, Tortola 1110 (VG)
    Designated Contracting States:
    GB NL 
  • Schlumberger Technology B.V.
    2514 JG The Hague (NL)
    Designated Contracting States:
    AL AT BE BG CH CY CZ DE DK EE ES FI GR HR HU IE IS IT LI LT LU LV MC MK MT NO PL PT RO RS SE SI SK SM TR 

(72) Inventors:
  • LIN, Yun
    Shanghai, 200433 (CN)
  • ABUBAKAR, Aria
    North Reading, Massachusetts 01864 (US)
  • HABASHY, Tarek M.
    Burlington, Massachusetts 01803 (US)

(74) Representative: Schlumberger Intellectual Property Department 
Parkstraat 83
2514 JG Den Haag
2514 JG Den Haag (NL)


(56) References cited: : 
WO-A2-2010/132432
US-A1- 2009 204 327
US-A1- 2011 051 553
US-B1- 6 739 165
 US-A1- 2009 102 485
US-A1- 2010 185 393
US-B1- 6 205 353
   
  • A Abubakar ET AL: "A three-dimensional multiplicative-regularized non-linear inversion algorithm for cross-well electro- magnetic and controlled-source electromagnetic applications", , 1 January 2008 (2008-01-01), pages 584-588, XP055205924, Retrieved from the Internet: URL:http://69.18.148.100/~/media/Files/wes terngeco/resources/papers/2008/2008_seg_34 .pdf [retrieved on 2015-08-03]
  • MAOKUN LI ET AL: "A compressed implicit Jacobian scheme for 3D electromagnetic data inversion", GEOPHYSICS, SOCIETY OF EXPLORATION GEOPHYSICISTS, US, vol. 76, no. 3, 1 May 2011 (2011-05-01), pages F173-F183, XP001574335, ISSN: 0016-8033, DOI: 10.1190/1.3569482 [retrieved on 2011-04-28]
  • EMIN U ULUGERGERLI: "Two dimensional combined inversion of short- and long-normal dc resistivity well log data", JOURNAL OF APPLIED GEOPHYSICS, ELSEVIER, AMSTERDAM, NL, vol. 73, no. 2, 8 December 2010 (2010-12-08), pages 130-138, XP028361889, ISSN: 0926-9851, DOI: 10.1016/J.JAPPGEO.2010.12.004 [retrieved on 2010-12-23]
   
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