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Compositional modeling and simulation of dimethyl ether (DME)-enhanced waterflood to investigate oil mobility improvement

Title
Compositional modeling and simulation of dimethyl ether (DME)-enhanced waterflood to investigate oil mobility improvement
Author
이근상
Keywords
Dimethyl ether (DME); DME-enhanced waterflood (DEW); Solubility; Oil mobility
Issue Date
2018-05
Publisher
SPRINGEROPEN
Citation
PETROLEUM SCIENCE, v. 15, no. 2, page. 297-304
Abstract
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.
URI
https://link.springer.com/article/10.1007%2Fs12182-017-0212-zhttp://repository.hanyang.ac.kr/handle/20.500.11754/118675
ISSN
1672-5107; 1995-8226
DOI
10.1007/s12182-017-0212-z
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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