... measurement sensitivity well logging borehole-compensated neutron-gamma porosity measurement optimized borehole effect spwla 61 neutron detector gamma ray july 29 neutron-gamma porosity measurement porosity response count rate june 24 log analysis detector porosity porosity algorithm symposium...

...SPWLA 52nd Annual Logging Symposium, May 14-18, 2011 1 NEUTRON POROSITY MEASUREMENTS USING A PULSED NEUTRON GENERATOR AND LI-6 GLASS NEUTRON DETECTORS Anton Nikitin, Loren P. Roberts, Feyzi Inanc, and Margarete M. Kopal Baker Hughes Incorporated Copyright 2011, held jointly by the Society...

...SPWLA 47th Annual Logging Symposium, June 4-7, 2006 1 FIELD EXAMPLES WITH A SLIM LWD DENSITY/NEUTRON INSTRUMENT CONTAINING A CALIFORNIUM-252 NEUTRON SOURCE AND THREE NEUTRON DETECTORS Bonnie Valant-Spaight, Wei Han, Weijun Guo and Ward Schultz PathFinder Energy Services Copyright 2006, held jointly...

... lithology dependence in comparison to steady-state neutron porosity logs. A prototype PNP logging tool has been constructed and tested. The tool contains a neutron tube and pulsing control for production of 14-MeV neutrons, an epithermal neutron detector (3He covered with Gd foil), and a time analyzer...

... Upstream Oil & Gas calibration term variation Symposium log analysis long term variation Spwla Nineteenth correction factor dfn system well logging generator DFN Technique Probe fission neutron metals & mining neutron detector variation neutron Uranium Ore Body analysis...

... and applications of the method are considered. The effects of borehole parameters on "pulsed neutron" logging are discussed and it is shown by test results that the Neutron Lifetime Log is superior in this regard. The use of a neutron detector as proposed in the Russian literature is shown to produce a log which...