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AuthorMahmoud M.
AuthorHussein I.
AuthorCarchini G.
AuthorShawabkeh R.
AuthorEliebid M.
AuthorAl-Marri M.J.
Available date2020-04-01T06:54:48Z
Publication Date2019
Publication NameJournal of Natural Gas Science and Engineering
ResourceScopus
ISSN18755100
URIhttp://dx.doi.org/10.1016/j.jngse.2019.103030
URIhttp://hdl.handle.net/10576/13631
AbstractConventional gas reservoirs are one of the viable options for CO2 enhanced gas recovery and sequestration. Injection of hot CO2 into depleted reservoirs is expected to improve gas recovery. Static adsorption and core flooding experiments were performed to quantify methane/CO2 adsorption/desorption using different rocks at different temperatures and pressures. Rocks such as shale, tight sandstone, calcite, and dolomite were used. For calcite, theoretical simulations were performed. Though methane desorption has increased when the temperature was raised, the results suggest that the gas recovery has doubled when the temperature has been increased from 50° to 100 °C in conventional reservoirs and from 100° to 150 °C in conventional and unconventional reservoirs. Similar trends were obtained for different rocks with increasing temperature. Core flooding and static adsorption experiments showed matching results. Rock mineralogy affects the adsorption capacity of the rock with shale rock having a 60% higher methane production than sandstone.
SponsorThe authors would like to acknowledge the support of Qatar National Research Fund (a member of Qatar Foundation) through Grant # NPRP10-0125-170235 . The findings achieved herein are solely the responsibility of the authors. KFUPM is also acknowledged.
Languageen
PublisherElsevier B.V.
SubjectCO2 sequestration
Enhanced gas recovery
Hot CO2
Methane adsorption
Rock mineralogy
TitleEffect of rock mineralogy on Hot-CO2 injection for enhanced gas recovery
TypeArticle
Volume Number72


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