Analyzing zonal well performance measured by production logging from Snorre A

Abstract

This thesis seeks to investigate zonal well performance on the Snorre A field. The goal is to further understand the value and limitations of the expected performance based on theoretically calculated data versus the actual performance measured by production logging. It is also to give recommendations on how to improve existing theoretical calculations through the use of available data and a better modeling of the skin effects. The thesis mainly consist of three parts: presenting the Snorre A field, a theory section discussing well performance by the productivity / injectivity indices, and an analysis part including selection of proper data, field calculations based on the theory and comparisons to production logs.