Tight oil vertical log analysis applied to horizontal Logging While Tripping (LWT) data of Cretaceous-aged Viking formation, Saskatchewan, Canada: a multi-disciplinary review of initial and extended findings

Abstract

The Cretaceous-aged Viking formation in Saskatchewan, Canada is considered a tight oil play with drilling and production challenges. A multiwell study of horizontal LWT compares vertical well log analysis to full-suite horizontal well logs by Cordax Evaluation Technologies Inc. The full-suite of horizontal logs include spectral gamma, neutron and density porosity, induction as well as azimuthal laterlog curves and were acquired, processed, analyzed, evaluated and compared to available production and completions data. The intention of the study was to optimize well design and completions engineering in order to improve hydrocarbon recovery based on a stronger understanding of the Viking reservoir. Specifically, this study was initiated to identify and target the most productive facies within the horizontal wellbore in order to delineate frac port placement, customize stimulation parameters and optimize frac efficiencies while minimally impacting ongoing drilling operations. This presentation will focus on a high level evaluation of well logs, drilling impacts and how geological learnings can be applied to drill and complete subsequent wells. Production results will highlight the impact of matrix-based production versus initial completion production.

AAPG Datapages/Search and Discovery Article #90357 ©2019 AAPG Rocky Mountain Section Meeting, Cheyenne, Wyoming, September 15-18, 2019