Published March 21, 1989 | Version v1
Patent Metadata-only

Downhole pulse radar

Creators

Description

A borehole logging tool generates a fast rise-time, short duration, high peak-power radar pulse having broad energy distribution between 30 MHz and 300 MHz through a directional transmitting and receiving antennas having barium titanate in the electromagnetically active region to reduce the wavelength to within an order of magnitude of the diameter of the antenna. Radar returns from geological discontinuities are samples for transmission uphole

Availability note (English)

Available from Patent and Trademark Office, Box 9, Washington, DC 20232.

Additional details

Publishing Information

Imprint Pagination
vp.
Patent number
US patent document 4,814,768/A/

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
21003478
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ANTENNAS; BARIUM ALLOYS; BOREHOLES; ELECTROMAGNETIC SURVEYS; PERFORMANCE; RADAR; TITANIUM ALLOYS; WAVELENGTHS; WELL LOGGING EQUIPMENT
Descriptors DEC
ALLOYS; CAVITIES; ELECTRICAL EQUIPMENT; ELECTRICAL SURVEYS; EQUIPMENT; GEOLOGIC SURVEYS; GEOPHYSICAL SURVEYS; MEASURING INSTRUMENTS; RANGE FINDERS