Title:
NMR-DNA-FINGERPRINT
Document Type and Number:
WIPO Patent Application WO/2012/018898
Kind Code:
A3
Abstract:
Pulse sequences are applied to a fluid in an earth formation in a static magnetic field and NMR spin echo signals are obtained. The signals are processed to give a distribution of relaxation time at each of the plurality of depths. A quasi-DNA is obtained by autoscaling and a nonlinear mapping of T2 component logs and non-NMR logs. Similarities between the quasi-DNA of the two types of logs are used to estimate formation lithology and fluids.
Inventors:
ROMERO PEDRO ANTONIO (BR)
Application Number:
PCT/US2011/046399
Publication Date:
May 24, 2012
Filing Date:
August 03, 2011
Export Citation:
Assignee:
BAKERHUGHES INC (US)
ROMERO PEDRO ANTONIO (BR)
ROMERO PEDRO ANTONIO (BR)
International Classes:
G01V3/32; G01V3/34; G01V3/38
Foreign References:
| US20090189604A1 | 2009-07-30 | |||
| US6600315B1 | 2003-07-29 | |||
| US7502691B2 | 2009-03-10 | |||
| US7495436B2 | 2009-02-24 |
Attorney, Agent or Firm:
CARSON, Matt, W. (P.O. Box 4740Houston, TX, US)
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