Visualization of Xanthan Flood Behavior in Core Samples by Means of X-Ray Tomography
- 1 November 1990
- journal article
- conference paper
- Published by Society of Petroleum Engineers (SPE) in SPE Reservoir Engineering
- Vol. 5 (04) , 475-480
- https://doi.org/10.2118/17342-pa
Abstract
Summary: This paper presents examples of xanthan corefloods visualized by X-ray tomography. Water and aqueous xanthan solutions are distinguished from each other by addition of sodium iodide (NaI) at different concentrations. One reservoir sandstone and one outcrop (Rosbrae) sandstone core samples were used. The reservoir sample was naturally divided into two longitudinal zones differing in permeability by about 20-fold. The Rosbrae sample was homogeneous, with a permeability of 450 md. Miscible xanthan/water displacement tests were performed on both plugs. Immiscible displacement of light refined oil by xanthan was performed on the homogeneous sample.Keywords
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