Invention Grant
- Patent Title: Simultaneous inversion of NMR multiple echo trains and conventional logs
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Application No.: US15244216Application Date: 2016-08-23
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Publication No.: US10209391B2Publication Date: 2019-02-19
- Inventor: Julio Roberto Arro
- Applicant: Julio Roberto Arro
- Applicant Address: US TX Houston
- Assignee: BAKER HUGHES, A GE COMPANY, LLC
- Current Assignee: BAKER HUGHES, A GE COMPANY, LLC
- Current Assignee Address: US TX Houston
- Agency: Cantor Colburn LLP
- Main IPC: G01V3/00
- IPC: G01V3/00 ; G01V3/38 ; G01V3/32

Abstract:
A method for estimating one or more properties as a function of depth of an earth formation penetrated by a borehole includes: receiving nuclear magnetic resonance (NMR) logging data having NMR echo trains as a function of depth in the borehole; receiving non-NMR logging data having non-NMR measurement values for one or more types of non-NMR measurements as a function of depth in the borehole; generating an evolution matrix (E) representing a mathematical relationship between the one or more properties in property matrix (P) to be estimated and the NMR logging data and non-NMR logging data matrix (M); generating a matrix equation of the form M=E·P; and inverting the matrix equation to estimate the one or more properties as a function of depth.
Public/Granted literature
- US20180059281A1 SIMULTANEOUS INVERSION OF NMR MULTIPLE ECHO TRAINS AND CONVENTIONAL LOGS Public/Granted day:2018-03-01
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