System for recovery of petroleum from petroleum impregnated media
This patent describes probe apparatus for in situ sensing of changes in the dielectric constant of extractable carbonaceous values in underground petroleum impregnated porous media during the subjecting thereof in situ to microwave radiation. It comprises: an open ended coaxial transmission line having an in situ probe end and a remote end, and including a conductive probe as core conductor insulated electrically from its counterpart coaxial conductive jacket as peripheral conductor and arranged for remotely adjustable axial movement relative to the jacket for extending the adjacent end portion of the probe a selective distance beyond the in situ probe end of the line to provide an adjustable length exposed probe end portion for embedding in such porous media, and indicating means arranged at the remote end of the line for indicating the sensed changes in such dielectric constant.
- Assignee:
- Edwards Development Corp., Balboa Island, CA
- Patent Number(s):
- A; US 4912971
- Application Number:
- PPN: US 7-295562A
- OSTI ID:
- 6931237
- Country of Publication:
- United States
- Language:
- English
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47 OTHER INSTRUMENTATION
DESIGN
DETECTION
DIELECTRIC PROPERTIES
ELECTRIC LOGGING
ELECTRICAL PROPERTIES
ELECTRONIC EQUIPMENT
ENERGY SOURCES
EQUIPMENT
EXPLORATORY WELLS
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
MICROWAVE EQUIPMENT
MINERAL RESOURCES
PETROLEUM
PETROLEUM DEPOSITS
PHYSICAL PROPERTIES
PROBES
RESOURCES
WELL LOGGING
WELL LOGGING EQUIPMENT
WELLS