Dual-cone double-helical downhole logging device

Patent · 01 January 1984

OSTI ID:865287

Yu, Jiunn S ^[1]

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1. Albuquerque, NM

A broadband downhole logging device includes a double-helix coil wrapped over a dielectric support and surrounded by a dielectric shield. The device may also include a second coil longitudinally aligned with a first coil and enclosed within the same shield for measuring magnetic permeability of downhole formations and six additional coils for accurately determining downhole parameters.

• Research Organization: AT & T CORP
• DOE Contract Number: AC04-76DP00789
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4489276
• OSTI ID: 865287
• Country of Publication: United States
• Language: English

Related Subjects

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accurately
accurately determining
additional
aligned
broadband
coil
coils
determining
device
dielectric
dielectric support
double-helical
double-helix
downhole
downhole logging
dual-cone
enclosed
formations
logging
logging device
longitudinally
longitudinally aligned
magnetic
magnetic permeability
measuring
parameters
permeability
shield
six
support
surrounded
wrapped