Title:
FORMATION-BASED INTERPRETATION OF NMR DATA FOR CARBONATE RESERVOIRS
Document Type and Number:
WIPO Patent Application WO/2004/104560
Kind Code:
A2
Abstract:
An apparatus and method for determining a parameter of interest of a formation composed of carbonate rock. A nuclear magnetic resonance (NMR) sensor assembly produces a pulsed RF field designed for obtaining measurements indicative of the parameter of interest of the formation. A downhole processor processes the measurements for obtaining BVI and BVM using a cutoff time based on classification of the carbonate. Further processing is done to estimate the permeability of the carbonate.
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Inventors:
KRUSPE THOMAS
KIESEL CHRISTIAN
THERN HOLGER
SURHOLT IRIS
KIESEL CHRISTIAN
THERN HOLGER
SURHOLT IRIS
Application Number:
PCT/US2004/016014
Publication Date:
December 02, 2004
Filing Date:
May 21, 2004
Export Citation:
Assignee:
BAKER HUGHES INC (US)
International Classes:
E21B33/124; E21B43/26; E21B49/00; E21B49/06; E21B49/10; G01N3/32; G01N15/08; G01R33/44; G01V3/32; E21B41/00; (IPC1-7): G01N3/32
Domestic Patent References:
WO2003016953A1 | 2003-02-27 |
Foreign References:
US6088656A | 2000-07-11 | |||
US5680043A | 1997-10-21 | |||
US20020153888A1 | 2002-10-24 | |||
US20030231017A1 | 2003-12-18 | |||
US6559639B2 | 2003-05-06 |
Attorney, Agent or Firm:
Riddle, Albert J. (3900 Essex Lane Suite 120, Houston TX, US)
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