Water Shutoff Using Oil-Soluble Chemicals – An X-Ray CT Study

C24 WATER SHUTOFF USING OIL-SOLUBLE CHEMICALS – AN X-RAY CT STUDY Abstract 1 Koenraad Elewaut and Pacelli L.J. Zitha Mijnbouwstraat 120 2628 RX Delft The Netherlands [email protected] We investigate the modification of porous media properties for reducing water production in oil wells using a novel chemical which is soluble in oil without any chemical reactions but when brought in contact water reacts and forms a stable gel. This oil-soluble chemical (OSC) is deemed capable of reducing considerably the risk of damaging oil bearing layers during bullhead water control treatments. We present an experimental study of the emplacement of the OSC