Downhole pulse radar
Patent
·
OSTI ID:5903568
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.
- Assignee:
- Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4814768
- OSTI ID:
- 5903568
- Resource Relation:
- Patent File Date: Filed date 28 Sep 1987
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
47 OTHER INSTRUMENTATION
BOREHOLES
WELL LOGGING EQUIPMENT
RADAR
PERFORMANCE
ANTENNAS
BARIUM ALLOYS
ELECTROMAGNETIC SURVEYS
TITANIUM ALLOYS
WAVELENGTHS
ALLOYS
CAVITIES
ELECTRICAL EQUIPMENT
ELECTRICAL SURVEYS
EQUIPMENT
GEOPHYSICAL SURVEYS
MEASURING INSTRUMENTS
RANGE FINDERS
SURVEYS
020200* - Petroleum- Reserves
Geology
& Exploration
440400 - Well Logging Instrumentation
47 OTHER INSTRUMENTATION
BOREHOLES
WELL LOGGING EQUIPMENT
RADAR
PERFORMANCE
ANTENNAS
BARIUM ALLOYS
ELECTROMAGNETIC SURVEYS
TITANIUM ALLOYS
WAVELENGTHS
ALLOYS
CAVITIES
ELECTRICAL EQUIPMENT
ELECTRICAL SURVEYS
EQUIPMENT
GEOPHYSICAL SURVEYS
MEASURING INSTRUMENTS
RANGE FINDERS
SURVEYS
020200* - Petroleum- Reserves
Geology
& Exploration
440400 - Well Logging Instrumentation