Carbon dioxide adsorption and interaction with formation fluids of Jordanian unconventional reservoirs

Abstract Shales are mostly unexploited energy resources. However, the extraction and production of their hydrocarbons require innovative methods. Applications involving carbon dioxide in shales could combine its potential use oil recovery with storage view impact on global climate. The success these approaches highly depends various mechanisms taking place rock pores simultaneously. In this work, properties governing presented at technically relevant conditions. pendant sessile drop methods utilized to measure interfacial tension wettability, respectively. gravimetric method is used quantify CO 2 adsorption capacity shale gas kinetics evaluated determine diffusion coefficients. It found that strongly affected by operating pressure. oil-CO shows a decrease from approx. 21 mN/m 0.1 MPa around 3 20 MPa. A similar trend observed brine-CO systems. coefficient slightly increase pressure supercritical Finally, contact angle be directly related surface: Up 3.8 wt% adsorbed surface 60 °C where maximum also found. To best author’s knowledge, affinity calcite-rich surfaces toward linked experimentally wetting behavior for first time. results discussed terms scenarios occurring optimally