TY - JOUR AU - 이근상 DA - 2018/05 PY - 2018 UR - https://link.springer.com/article/10.1007%2Fs12182-017-0212-z UR - https://repository.hanyang.ac.kr/handle/20.500.11754/118675 AB - Dimethyl ether (DME) is a widely used industrial compound, and Shell developed a chemical EOR technique called DME-enhanced waterflood (DEW). DME is applied as a miscible solvent for EOR application to enhance the performance of conventional waterflood. When DME is injected into the reservoir and contacts the oil, the first-contact miscibility process occurs, which leads to oil swelling and viscosity reduction. The reduction in oil density and viscosity improves oil mobility and reduces residual oil saturation, enhancing oil production. A numerical study based on compositional simulation has been developed to describe the phase behavior in the DEW model. An accurate compositional model is imperative because DME has a unique advantage of solubility in both oil and water. For DEW, oil recovery increased by 34% and 12% compared to conventional waterflood and CO2 flood, respectively. Compositional modeling and simulation of the DEW process indicated the unique solubility effect of DME on EOR performance. PB - SPRINGEROPEN KW - Dimethyl ether (DME) KW - DME-enhanced waterflood (DEW) KW - Solubility KW - Oil mobility TI - Compositional modeling and simulation of dimethyl ether (DME)-enhanced waterflood to investigate oil mobility improvement IS - 2 VL - 15 DO - 10.1007/s12182-017-0212-z T2 - PETROLEUM SCIENCE ER -