173373 ⎘
Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using a combination of several sources, e.g. a neutron and a gamma source
Sub-classes:Methods and Means for Neutron Imaging Within a Borehole
#2METHODS AND MEANS FOR NEUTRON IMAGING WITHIN A BOREHOLE
#3Apply multi-physics principle for well integrity evaluation in a multi-string configuration
#4Spectral gamma ray downhole logging tool
#5METHODS AND MEANS FOR NEUTRON IMAGING WITHIN A BOREHOLE
#6Logging with joint ultrasound and X-ray technologies
#7Method for determining porosity associated with organic matter in a well or formation
#8Behind pipe evaluation techniques for well abandonment and complex annular environments
#9System and method for wellsite core sample analysis
#10Apparatus and methods for measuring formation characteristics
#11Identification of neutron capture from a pulsed neutron logging tool
#12Gamma ray detectors having azimuthal sensitivity
#13Apparatus and methods for measuring formation characteristics