Field Demonstration of Carbon Dioxide Miscible Flooding in the Lansing-Kansas City Formation, Central Kansas

Abstract

Progress is reported for the period from January 1, 2003 to March 31, 2003. A water supply well was permitted, drilled, and completed in the shallow, freshwater , Dakota Sandstone. The pumphouse has been put in place and the long-term injection equipment is being setup. Although the short-term injectivity test was cut short by power failure following an ice storm, results indicate the well exhibits sufficient injectivity to proceed with the long-term injectivity test, which will start in the beginning of the second quarter. The CO2 Project #10 and #12 wells were reworked and the Lansing-Kansas City (LKC) "C" interval in both wells isolated. The CO2 Project #16 well was drilled deeper, cored in the LKC "C" and "G" zones, and cased to the "C" zone and will be perforated and stimulated in the beginning of second quarter. Initial wireline log analysis and examination of the core indicate that the porosity of the "C" zone in this location may be lower than in other parts of the pattern by 3-5 porosity units. Log analysis indicates water saturations are near 60% consistent with predicted residual oil saturation to waterflood modeling. Lower porosities may indicate lower permeability may also be present. Core analysis is being conducted and results will be available in the first week of the second quarter. A draft letter agreement has been presented to FLOCO2 Company for supply of CO2 storage and injection pump equipment. Presentations of the project status were made at the 15 th Oil Recovery Conference in Wichita on March 12-13.