Invention Grant
- Patent Title: MWD/LWD NMR imaging with long echo trains
- Patent Title (中): 具有长回波列车的MWD / LWD NMR成像
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Application No.: US12689361Application Date: 2010-01-19
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Publication No.: US08324895B2Publication Date: 2012-12-04
- Inventor: Peter Rottengatter
- Applicant: Peter Rottengatter
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Cantor Colburn LLP
- Main IPC: G01V3/00
- IPC: G01V3/00

Abstract:
An apparatus for estimating a property of an earth formation having: a plurality of receiver antennas to receive nuclear magnetic resonance (NMR) signals from a plurality of angular segments in a region of investigation in response to an interaction between a static magnetic field and pulses of electromagnetic energy; and a processor configured to: receive the NMR signals from each receiver antenna, the NMR signals having first NMR signals received from each angular segment by only one receiver antenna and second NMR signals received from a same angular segment by at least two receiver antennas; associate the first NMR signals and the second NMR signals with the angular segment from which the first NMR signals and the second NMR signals were obtained; deconvolve the second NMR signals to produce deconvolved NMR signals; and estimate the property from the first NMR signals, the deconvolved NMR signals, and the associated angular segments.
Public/Granted literature
- US20100201359A1 MWD/LWD NMR IMAGING WITH LONG ECHO TRAINS Public/Granted day:2010-08-12
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