... evaluation is enhanced by the use of formation grain density as derived from the elemental composition. Cross-validation of the water saturation from both Archie and Sigma methods, significantly increasing the level of confidence in each. Thin bed evaluation with minimal shoulder effect...

... improve well placement by identifying better porosity development and producible reservoir intervals in this reservoir. Upstream Oil & Gas log analysis real time system trajectory density image water saturation Reservoir Characterization boundary well logging directional measurement...

.... Differences in irreducible water saturation from capillary pressure curves exist depending on test method. Uncorrected high-pressure mercury injection data often inaccurately characterizes capillary pressures at irreducible water saturation. Typically, higher irreducible water saturations are seen from...

... ABSTRACT The difficulties encountered in the interpretation of water saturation in carbonate rocks from conventional logs and Archie formulae have been the subject of many publications. The impact of diagenesis and rock wettability variations on Archie's parameters is difficult to quantify...

... ABSTRACT An extensive laboratory study to determine initial water saturation as well as remaining oil in water flooded regions has been initiated using porous plate measurements at reservoir temperature and net overburden pressure conditions using stock tank oil and simulation formation water...

... ABSTRACT Accurate determination of water saturation is fundamental for estimating reservoir fluid volumes and better characterization of hydrocarbon reservoirs. There are several methods available to estimate the water saturation in shaly formations but the most commonly used in the industry...