Prediction of transport properties for the Eastern Mediterranean Sea shallow sediments by pore network modelling
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CitationMerey, Ş (2019). Prediction of transport properties for the Eastern Mediterranean Sea shallow sediments by pore network modelling. Journal of Petroleum Science and Engineering, 176, pp. 403-420.DOI: 10.1016/j.petrol.2019.01.081
The Eastern Mediterranean Sea has gas hydrate potential as well as its conventional natural gas potential.Numerical simulations are crucial to predict gas and water production from gas hydrate reservoirs because theyare needful to determine gas production strategies. However, the transport properties of the EasternMediterranean Sea shallow sediments are missing in literature. In this study, the transport properties (porosity,absolute permeability, relative permeability, and capillary pressure) of the Eastern Mediterranean Sea shallowsands were estimated by pore network simulations with OpenPNM. In order to generate pore networks in theconditions of the Eastern Mediterranean Sea, the core data of Ocean Drilling Program Leg 160 was evaluated inthis study. In pore network simulations, it was observed that porosity and absolute permeability increase as porediameter and throat diameter increase. On the other hand, capillary pressure decreases. Thefitting parameters toOpenPNM modelling data for the relative permeability equation of Stone were calculated as: 0.02–0.14 for Srw,1.8–3.57 for ngand 1.9–6.0 for nw. Thefitting parameters to OpenPNM modelling data for the capillary pressureequation of Van Genuchten were calculated as: 0.866–0.945 for m and 1.375 × 104-5.90 × 105Pa for P0. Theseparameters were suggested for numerical gas hydrate production simulations in the Eastern Mediterranean Sea.Numerical simulations at different cases were held by HydrateResSim for gas hydrates to investigate the effect oftransport properties on gas and water production in the conditions of the Eastern Mediterranean Sea. It wasobserved that gas production, water production and production time were significantly affected by transportproperties.
SourceJournal of Petroleum Science and Engineering
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