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Title: NMR logging apparatus

Technologies including NMR logging apparatus and methods are disclosed. Example NMR logging apparatus may include surface instrumentation and one or more downhole probes configured to fit within an earth borehole. The surface instrumentation may comprise a power amplifier, which may be coupled to the downhole probes via one or more transmission lines, and a controller configured to cause the power amplifier to generate a NMR activating pulse or sequence of pulses. Impedance matching means may be configured to match an output impedance of the power amplifier through a transmission line to a load impedance of a downhole probe. Methods may include deploying the various elements of disclosed NMR logging apparatus and using the apparatus to perform NMR measurements.
Authors:
;
Publication Date:
OSTI Identifier:
1132599
Report Number(s):
8,736,264
13/356,381
DOE Contract Number:
FG02-07ER84931
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Jan 23
Research Org:
Vista Clara Inc., Mukilteo, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION