Introduction of evaluation method and result of process technologies for development of high CO₂ content gas fields

Abstract

Previously natural gas fields with low CO₂ content have been preferably developed. Currently, however, there are many underdeveloped sour gas resources containing a significant concentration of CO₂. The development of the gas field containing high concentration of CO₂ requires sweetening and processing prior to give a natural gas product. There are a large number of technological options for the removal of CO₂, which make the selection of the process technology a challenging issue. In this report, a method to evaluate the aforementioned process technologies was proposed in order to select the most competitive option. A case study was also carried out to evaluate various process technologies based on the proposed evaluation method.