SLB developed a multiwell automatic log correction (MALC) workflow which corrects neutron and gamma ray logs using machine learning (ML) to correlate regional and contextual references in historic log ...

LWD acquires formation evaluation and wellbore data in real time while the bit is cutting rock. Sensors housed in drill collars measure gamma ray, resistivity, density, neutron porosity, sonic, NMR, ...

This early journaling system has evolved to encompass lowering logging tools into the wellbore via wireline in order to measure porosity, resistivity, permeability, temperature, water saturation and ...