ASPECTS OF COALBED NATURAL GAS WATER AND OIL RECOVERY

摘要

The application of coalbed natural gas (CBNG) water injection to improved oil recovery is being investigated. Such application can be permitted as Class II injection. This is more, advantageous economically than Class V injection. Therefore CBNG water injection for improved oil recovery is value-added disposal. Use of CBNG water for oil recovery will also reduce the depletion of fresh water aquifers currently used in Wyoming as a source of injection water. The potential for application of low salinity flooding to a specific reservoir requires tests on cores and crude oil obtained from that reservoir. Information will be presented on the Tensleep reservoir rock from the Teapot Dome field that was selected for laboratory tests of CBNG water injection in Wyoming oil reservoirs.