The Electromagnetic Propagation Tool was originally intended to be run only in fresh-water environment. However, in Middle East its range of applications have been expanded as much as possible. It has been used as a formation-water salinity estimator on one test well. Another unusual application is oil-base mud logging, which is becoming more and more frequent. A field example is presented.

Keywords:
electromagnetic propagation, invasion, drilling fluid chemistry, upstream oil & gas, equation, ept log, middle east, computation, application, oil-base mud
Subjects:
Drilling Fluids and Materials, Formation Evaluation & Management, Drilling fluid selection and formulation (chemistry, properties)
Copyright 1985, Society of Petroleum Engineers
You can access this article if you purchase or spend a download.