Improved Oil Recovery from Upper Jurassic Smackover Carbonates through the Application of Advanced Technologies at Womack Hill Oil Field, Choctaw and Clarke Counties, Eastern Gulf Coastal Plain, Class II

Abstract

and Associates are undertaking a focused, comprehensive, integrated and multidisciplinary study of Upper Jurassic Smackover carbonates (Class I1 Reservoir), involving reservoir characterization and 3-D modeling and an integrated field demonstration project at Wornack Hill Oil Field Unit, Choctaw and Clarke Counties, Alabama, Eastern Gulf Coastal Plain. The principal objectives of the project are: increasing the productivity and profitability of the Womack Hill Field Unit, thereby extending the economic life of this Class 11 Reservoir and transferring effectively and in a timely manner the knowledge gained and technology developed from this project to producers who are operating other domestic fields with Class 11 Reservoirs. The principal research effort for Year 1 of the project has been reservoir characterization, which has included three (3) primary tasks: geoscientific reservoir characterization, petrophysical and engineering property characterization, and microbial characterization. In the first year, the research focus has prirnarily been geoscientific reservoir characterization. This work was scheduled for completion in Year 1. Petrophysical and engineering property and microbial characterization were initiated in the last six months of Year 1. Overall, the project work is on schedule. Geoscientific Reservoir Characterization is essentially on schedule with completion of subtasks 1 and 2, with significant progress with subtasks 3 and 4, and with initiation of subtasks 5 and 6. Petrophysical and Engineering Characterization is on schedule with progress in all of the four subtasks. Microbial Characterization is on schedule although no microbial growth has been observed to date from field core, oil or produced water samples.