Treatment of Oil-Contaminated Drill Cuttings of South Pars Gas Field in Iran Using Supercritical Carbon Dioxide

Sustainable process-product development & green chemistry

SCF as Solvent Substitutes (T1-8P)

Mr Feridun Esmaeilzadeh
Shiraz University
Petroleum and Chemical Eng. Dept.
Shiraz-Zand Ave.-School of Engineering-Petroleum and Chemical Engineering Department
Islamic Republic of Iran

Keywords: Supercritical Fluid of Co2, Extraction, Drilling waste mud, South Pars gas field

Abstract
New treatment technologies are currently being investigated for the treatment of contaminated drilling waste mud with oil. Supercritical fluid extraction is a promising technology that could be effectively used to extract this contaminated drilling waste mud. In this work, one step extraction efficiency of supercritical carbon dioxide to drilling waste mud of South Pars gas field has been investigated at a range of temperature (55 to 79.5) ◦C and over a pressure range of (160 to 220) bar. Extraction efficiencies were calculated based on cuttings weight loss. The results show that approximately 28.45 % cuttings weight loss in one step extraction at a pressure of 200 bar and temperature 60 ◦C can be extracted by supercritical carbon dioxide.