... measurements, density and neutron are provided as the feasible solution. However, to understand the formation effectiveness within a very complex lithology and further manage the risk of chemical source requires one more cutting-edge technology. In 2022, a high-definition, high accuracy, 2-dimension LWD...

... 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...