Title:
SYSTEMS AND METHODS FOR NMR LOGGING
Document Type and Number:
WIPO Patent Application WO2004099817
Kind Code:
A3
Abstract:
An NMR logging tool for conducting NMR measurements in a plurality of sensitive volumes ranging up to a meter from the tool. The tool comprises a magnetic assembly using one or more permanent magnets and at least one pole piece for extending a magnet pole and shaping the magnetic field to simulate a magnetic monopole in a sensitive volume within the formation. Different embodiments of a segmented antenna enable directional NMR logging. The tool embodiments and methods of their use are suitable for wireline or LWD logging, and can be used for directional drilling.
Inventors:
PRAMMER MANFRED (US)
KNIZHNIK SERGEY (US)
MENGER STEFAN K (US)
GOODMAN GEORGE D (US)
HARRIS EDWARD J III (US)
DRACK EARLE (US)
KNIZHNIK SERGEY (US)
MENGER STEFAN K (US)
GOODMAN GEORGE D (US)
HARRIS EDWARD J III (US)
DRACK EARLE (US)
Application Number:
PCT/US2004/013342
Publication Date:
November 16, 2006
Filing Date:
April 30, 2004
Export Citation:
Assignee:
HALLIBURTON ENERGY SERV INC (US)
PRAMMER MANFRED (US)
KNIZHNIK SERGEY (US)
MENGER STEFAN K (US)
GOODMAN GEORGE D (US)
HARRIS EDWARD J III (US)
DRACK EARLE (US)
PRAMMER MANFRED (US)
KNIZHNIK SERGEY (US)
MENGER STEFAN K (US)
GOODMAN GEORGE D (US)
HARRIS EDWARD J III (US)
DRACK EARLE (US)
International Classes:
G01V3/00; G01R33/44; G01V3/32
Foreign References:
| US6118272A | 2000-09-12 | |||
| US6255818B1 | 2001-07-03 |
Other References:
See also references of EP 1642156A4
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