skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: NMR logging apparatus

Abstract

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.

Inventors:
;
Issue Date:
Research Org.:
Vista Clara Inc., Mukilteo, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1132599
Patent Number(s):
8736264
Application Number:
13/356,381
Assignee:
Vista Clara Inc. (Mukilteo, WA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
DOE Contract Number:  
FG02-07ER84931
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Jan 23
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Walsh, David O, and Turner, Peter. NMR logging apparatus. United States: N. p., 2014. Web.
Walsh, David O, & Turner, Peter. NMR logging apparatus. United States.
Walsh, David O, and Turner, Peter. Tue . "NMR logging apparatus". United States. https://www.osti.gov/servlets/purl/1132599.
@article{osti_1132599,
title = {NMR logging apparatus},
author = {Walsh, David O and Turner, Peter},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {5}
}

Patent:

Save / Share: