173368 ⎘
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 neutron sources and detecting secondary Y-rays as well as reflected or back-scattered neutrons the neutron source being of the pulsed type
PRISMATIC GRID INVERSION FOR OIL SATURATION AND 3-PHASE HOLDUP
#2Device for evaluating a uranium content and a hydrogen porosity of a particular region in a geological formation when drilling and associated method
#3Early Leakage Detection For A Neutron Generator
#4Universal Neutron Pulsing Scheme For Logging Operations
#5COMPENSATED NEUTRON GAMMA DENSITY
#6Prismatic Grid Inversion For Oil Saturation And 3-Phase Holdup
#7Construction Of A Target Assembly For A Compact D-D Or D-T Neutron Generator
#8Method and apparatus for obtaining real-time formation gas saturation
#9Method for obtaining near-wellbore true borehole sigma and true formation sigma by using a nuclear logging tool during oil and gas exploration
#10Method and apparatus for obtaining real-time downhole oil saturation
#11Apparatus and method for obtaining real-time true formation porosity using pulsed neutron well logging tool having dual-function detectors
#12Systems and methods for determining clean inelastic and capture spectra
#13Acquiring formation porosity using multiple dual-function detectors and neural network
#14Method and apparatus for enhanced formation porosity measurement using pulsed neutron source and dual-function detectors
#15Nuclear logging tools and applications thereof
#16Three-component holdup measurement using pulsed neutron tool
#17Holdup algorithm using assisted-physics neural networks
#18Neutron time of flight wellbore logging
#19SQUEEZE TARGET SELECTION METHODS AND SYSTEMS
#20Gamma calibration
#21Compensated sigma from measurements made by a pulsed neutron instrument
#22Neutron gamma density correction using elemental spectroscopy
#23Capture gamma ray spectroscopy for analyzing gravel-packs, frac-packs and cement
#24Method and apparatus for separating gamma and neutron signals from a radiation detector and for gain-stabilizing the detector
#25Gamma-ray detectors for downhole applications
#26Neutron-gamma density through normalized inelastic ratio
#27Scale identifier
#28Radiation generator and power supply configuration for well logging instruments
#29Compensated sigma from measurements made by a pulsed neutron instrument
#30Pulsed neutron tool for downhole oil typing
#31Gamma-ray detectors for downhole applications
#32Borehole fluid effect correction for pulsed neutron porosity measurements
#33Identification of neutron capture from a pulsed neutron logging tool
#34Radiation generator and power supply configuration for well logging instruments
#35Gamma-ray detectors for downhole applications
#36CHARACTERIZATION OF LOGGING TOOL PERFORMANCE
#37Method and apparatus for determining the thermal neutron capture cross-section of a subsurface formation from a borehole
#38Method and system for determining hydrocarbon properties
#39Method and apparatus for determining the thermal neutron capture cross-section of a subsurface formation from a borehole