Paper: Well Logging Requirements for Miscible Flood Projects in the Permian Basin

New wirelins logging services and procedures are supplying much needed answers to modeling CO2 floods in the Permian Basin. The new measurements of photoelectric absorptioncross section, gamma ray spectrometry and dielectric permitivity from LDT, NGT, and EPT are combined with CNL, BHC and resistivity measurements in a Synergetic log called VOLAN . Volan supplies the all important lithology, porosity, permeability and residual oil saturations needed for reservoir description. Cased reservoir description is now obtaining lithology, porosity, vertical permeability distribution, and oil saturations through casing. The GST CNL, NGT, and BHC are incorporated into a VOLAN PS.
Determining hydraulic isolation Hnd pipe integrity has become crucial because of the high cost of COs. New monitor techniques using CNL, TDT, and NGT show how CO2 flood can be accurately monitored to determine both vertical and areal sweep efficiency.