... and ongoing hole enlargement and thus the method has shown a new application. Further work linking PTR and T 2 distribution to sedimentary features observed on scanning electron microscopy energy dispersive spectroscopy (SEM-EDS) is required to fully understand the pore space system and thus determine...

.... They are equally useful for diagnosing operations issues, for example by identifying loss zones, investigating wellbore enlargement and creating pseudo calipers for cementing calculations. The paper will demonstrate that the total value which can be delivered from time lapse LWD far exceeds that derived from...

... log analysis oil-base mud eccentricity effect Attenuation Resistivity field example interpretation Upstream Oil & Gas eccentricity enlargement well logging Formation Resistivity separation Symposium resistivity resistivity tool SPWLA Symposium tool response resistivity curve...

... log well logging frequency band hydraulic fracturing conductive fracture geophysics Stoneley wave Shear Anisotropy hz response dipole shear anisotropy borehole enlargement borehole geophysical technique reflectivity Reservoir Characterization Upstream Oil & Gas shear slowness...

... ABSTRACT Formation density measurements made while drilling can be adversely affected if the hole becomes enlarged before the density measurement is made. This can occur even if a stabilizer is used to exclude mud from in front of the source and sensor windows. The position of the rotating...