Study on the temperament of CCUS-EOR supercritical/dense phase pipeline in Daqing Oilfield

Abstract

The best way to connect CCUS-EOR carbon source and carbon sink is Supercritical long-haul pipeline containing impurities of carbon dioxide. Due to the variety of source of carbon and capture technologies, the combination of carbon source impurities has diversity. Carbon sink also has certain requirements on carbon source components owing to the specificity of reservoir and the requirements of oil displacement and storage injection system facilities. To sum up, it is necessary to study the limit of carbon source temperament composition which can not only satisfy the matching of carbon source and carbon sink, but also ensure the safe long-distance transport of carbon dioxide containing impurities in the supercritical phase [10]. This article obtains from the source of carbon source and capture process analysis of carbon source, and the content limits of various impurities are studied according to the requirements of carbon sink injection engineering and oil reservoir enhanced oil recovery, which in all at the same time in the process of research and analysis through the impurities in supercritical carbon dioxide/dense-phase long-distance pipeline safety transportation technology requirements and characteristics of Daqing area meteorological environment, in the end, the suitable source -sink matching temperament is given. Impurities in supercritical carbon dioxide long-distance pipeline temperament limit mainly include carbon dioxide, water,