Paper: METHODS AND SOLUTIONS TO REMEDIATE INNER-WELL COMMUNICATION PROBLEMS ON THE CO2 EOR PROJECT - A CASE STUDY

Paper addresses conformance problems with dominating eroded interwell communications to offset producers in certain patterns of the SACROC Unit Carbon Dioxide Enhanced Oil Recovery (CO2 EOR) Project in Scurry County, Texas. The opportunity to maintain optimum pressure support and desired mobility of the hydrocarbons in various patterns and areas was being lost. Various technologies and methods were investigated and/or deployed in attempts to redistribute CO2 injection into desired intervals and reduce the wasted cycling. The injection wells have and will be treated with solutions capable of modifying fluid flow in an extended reach away from the near-wellbore. Applied diagnostics provided guidance for the designed remediations of the communication problems. Criteria were then established for the physical and chemical attributes needed by the conformance solutions group to address the identified problems. Illustrated are problem identification diagnostics, selection processes for solution attributes and capabilities, and placement control requirements.