Method of energy resolved gamma-ray logging
Patent
·
OSTI ID:5503667
A radioactive logging method for evaluating a wellbore and its surrounding formation in which gamma-ray emitting nuclides may be naturally present. A radioactive tracer is injected into the formation. The tracer emits gamma rays at at least one energy at which substantially none of the naturally present elements emit gamma rays. The wellbore is traversed with a gamma-ray detection system which is tuned to detect gamma rays at the one energy level of the tracer, thus providing a profile of tracer distribution in the formation.
- Assignee:
- Conoco Inc.
- Patent Number(s):
- US 4493999
- OSTI ID:
- 5503667
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method of radioactive well logging
Gamma-gamma density logging method
Process for obtaining permeability logs using radioactive drilling mud additives
Patent
·
Tue Aug 15 00:00:00 EDT 1989
·
OSTI ID:5394262
Gamma-gamma density logging method
Patent
·
Mon Dec 24 23:00:00 EST 1979
·
OSTI ID:5614551
Process for obtaining permeability logs using radioactive drilling mud additives
Patent
·
Tue Sep 08 00:00:00 EDT 1987
·
OSTI ID:6055024
Related Subjects
02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
440400 -- Well Logging Instrumentation
47 OTHER INSTRUMENTATION
AQUEOUS SOLUTIONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
COBALT 58
COBALT ISOTOPES
DAYS LIVING RADIOISOTOPES
DISPERSIONS
ELECTRON CAPTURE RADIOISOTOPES
ENERGY RANGE
EQUIPMENT
GAMMA LOGGING
HOURS LIVING RADIOISOTOPES
INJECTION WELLS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
KEV RANGE
KEV RANGE 100-1000
MEASURING INSTRUMENTS
MIXTURES
MONITORING
NUCLEI
ODD-ODD NUCLEI
OIL WELLS
RADIATION DETECTORS
RADIOACTIVITY LOGGING
RADIOISOTOPES
SOLUTIONS
TRACER TECHNIQUES
WELL LOGGING
WELL LOGGING EQUIPMENT
WELLS
020200* -- Petroleum-- Reserves
Geology
& Exploration
440400 -- Well Logging Instrumentation
47 OTHER INSTRUMENTATION
AQUEOUS SOLUTIONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
COBALT 58
COBALT ISOTOPES
DAYS LIVING RADIOISOTOPES
DISPERSIONS
ELECTRON CAPTURE RADIOISOTOPES
ENERGY RANGE
EQUIPMENT
GAMMA LOGGING
HOURS LIVING RADIOISOTOPES
INJECTION WELLS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
KEV RANGE
KEV RANGE 100-1000
MEASURING INSTRUMENTS
MIXTURES
MONITORING
NUCLEI
ODD-ODD NUCLEI
OIL WELLS
RADIATION DETECTORS
RADIOACTIVITY LOGGING
RADIOISOTOPES
SOLUTIONS
TRACER TECHNIQUES
WELL LOGGING
WELL LOGGING EQUIPMENT
WELLS