Feldmann, Felix  1989- <br/><br/>
An experimental and numerical study of low salinity effects on the oil recovery of carbonate limestone samples /Felix Feldmann. 

 - 1. Auflage. 
 - Göttingen  Cuvillier Verlag  2020. 
 - 1 online resource (255 pages) 
<br/><br/>Includes bibliographies and index. 
<br/><br/> Low-salinity waterflooding is a relatively simple and cheap Enhanced oil recovery technique in which the salinity of the injected water is optimized (by desalination and/or modification) to improve oil recovery over conventional waterflooding. The presented study combines spontaneous imbibition, centrifuge method, unsteady state coreflooding and zeta potential experiments to investigate low-salinity effects in carbonate limestones samples. Compared to Formation-water and Sea-water, Diluted-sea-water caused the significantly highest spontaneous oil recovery. Moreover, the imbibition capillary pressure curves are characterized by an increasing water-wetting tendency and a residual oil saturation reduction, as the salinity of the imbibing brines decreases in comparison to Formation-water. The unsteady state corefloodings resulted in the highest secondary oil recovery when Diluted-sea-water was used as injection water. Based on the open-source C++ simulator Dumux, the study developed a numerical centrifuge and coreflooding model to history match the experimental data. The numerically derived capillary pressure and relative permeability data confirm a correlation between the system's salinity, wettability, oil recovery and residual oil saturation. 
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<br/><br/><label>ISBN: </label>3736961766 9783736961760 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oil field flooding.<br/>Salinity.<br/>Enhanced oil recovery.<br/>Permeability.<br/>Carbonate reservoirs.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic Books.
<br/><br/><label>LC Class. No.: </label>TN871  / .E974 2020