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Εργαστηριακή διερεύνηση της επίδρασης της διαβρεξιμότητας του πετρώματος επί των καμπυλών σχετικών διαπερατοτήτων νερού-πετρελαίου σε πυρήνες υπόγειων ταμιευτήρων υδρογονανθράκων

Tallarou Chrysoula

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URI: http://purl.tuc.gr/dl/dias/BA3BD0B1-2661-4E6F-9AF5-405A47B2284E
Year 2021
Type of Item Diploma Work
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Bibliographic Citation Χρυσούλα Τάλλαρου, "Εργαστηριακή διερεύνηση της επίδρασης της διαβρεξιμότητας του πετρώματος επί των καμπυλών σχετικών διαπερατοτήτων νερού-πετρελαίου σε πυρήνες υπόγειων ταμιευτήρων υδρογονανθράκων", Διπλωματική Εργασία, Σχολή Μηχανικών Ορυκτών Πόρων, Πολυτεχνείο Κρήτης, Χ https://doi.org/10.26233/heallink.tuc.88231
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Summary

The wettability of a porous rock in oil reservoirs affects the oil recovery potential during secondary and tertiary recovery processes. Depending on the nature of rock wettability (water-wet or oil-wet porous media) the water-oil interface passes through pores with different characteristics, often creating flow channels as well as isolated areas that are not involved in the recovery stage. Artificial wetting change is an up-and- coming tertiary method that optimizes the rate of recovery when other methods are economically and technically unprofitable. The objective of this thesis, is the determination of wettability of a Berea sandstone core and the effect that it bears on the relative permeability curves of the oil-water system of fluids. The alteration of wettability from water-wet to oil-wet, was performed by impregnating the cores with natural oil samples containing 9% asphaltene. The study led to a range of conclusions, including the effectiveness of the Amott method in determining wettability and the obvious differences in the relative water/oil permeability curves between the two different types of wetting.

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