... geology asia government geologist rock type upstream oil & gas china government reservoir surveillance drilling data acquisition reservoir characterization nmr log analysis japan production control porosity lwd nmr neutron drilling measurement 28th formation evaluation...

... ABSTRACT A new petrophysical property and measurement, the Fast Neutron Cross Section (FNXS), was introduced for the formation evaluation in recent years (Rose et al., 2015; Zhou et al., 2016). FNXS is defined as the macroscopic cross section of the formation inelastic scattering with incident...

... ABSTRACT Running Pulse Neutron logs in Malaysia has previously been plagued by high uncertainties, especially in brown fields with complex multi stacked clastic reservoirs. Together with a wide range of porosities and permeabilities, the acquired logs quite often than not, tend to yield...

... still remains to fully evaluate reserves or as assurance logs. Several years ago an electronic, switchable Pulse Neutron Generator (PNG) source was implemented in an LWD tool, enabling acquisition of neutron, capture spectroscopy and sigma, in addition to the industry's first radionuclide-source-free...