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Dual detector-compensated density well-logging system
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1967-07-19 |
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Multiple gamma radiation logging technique for identifying low atomic number materials
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1967-09-05 |
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Combination neutron and gamma ray logging technique
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Signal correction system for well logging instrument having short and long-spaced radioactivity detectors and a bore hole caliper
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1968-01-05 |
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Schlumberger Technology Corp |
Submarine radioactivity logging technique
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Pore-scale geometric models for interpretation of downhole formation evaluation data
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Models geometrique d'echelle des pores servant a l'interpretation des donnees d'evaluation des formations en fond de puits
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Measuring wellbore diameter with an LWD instrument using compton and photoelectric effects
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System and method for stress field based wellbore steering
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Measurement of standoff corrected photoelectric factor
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Procédé permettant de déterminer des informations pétro-physiques au moyen de rayons gamma de haute énergie
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Compensated caliper using combined acoustic and density measurements
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Modulator for circular induction accelerator
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Method of extracting formation density and Pe using a pulsed accelerator based litho-density tool
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Bi-directional dispenser cathode
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Injector for betatron
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Single drive betatron
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Betatron bi-directional electron injector
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Method of driving an injector in an internal injection betatron
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Resonance method for measuring water-oil ratio, conductivity, porosity, permeability and electrokinetic constant in porous formations
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Measurement of permeability in borehole in the presence of mudcake
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Logging tool for determination of formation density and methods of use
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Determining a characteristic of a material surrounding a wellbore based on count rates of scattered photons
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Geological constraint using probability functions in stochastic mineralogy modeling
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