The course is designed to be of benefit to geologists, engineers and technical support people who are involved in oil and gas exploration and production working in areas with a large number of “Old” well logs. As the title states, this is a quick review of the unique methods used in the analysis of older well logs. The course will be a useful to new personnel in the oil and gas industry as well as more experienced professionals who need a review.

At the conclusion of the one day course, participants should be able to do the following: Scan a well log to determine zones that potentially could be hydrocarbon productive.

Determine formation temperature and correct both drilling fluids and formation water resistivities to formation temperature. Also be able to make basic bore hole and thin bed corrections to the resistivity logs. 

Determine formation water resistivity using well logging methods.

Determine porosity from resistivity logs using numerous well logs and methods.

Normalize old gamma ray log to API units and normalize old neutron logs to determine porosity.

Make invasion corrections of resistivity logs to true formation resistivity.

Understand how the Archie parameters are obtained, so that together with log data, water saturation and hydrocarbon saturation can be derived.

The participants will also be exposed to additional methods including cross plots to help in the determination of the productive potential of the zone being analyzed.