ÇAĞRILI KONUŞMALAR / KEYNOTES Invited Speeches ... - TPJD

Matrix Fracture Interaction in Sandstone Rocks During Carbon Dioxide
Injection
Sevtaç Bülbül, Mahmut Parlaktuna
Middle East Technical University, Department of Petroleum and Natural Gas Engineering,
Ankara
The aim of the study carried out is to investigate matrix-fracture interaction during CO 2 injection.
In the study, an experimental work is being carried out to understand the mechanisms of the gasoil
gravity drainage (GOGD) concept by the means of CO 2 injection. Experiments are conducted by
using sandstone core samples and n-decane is used as the oil phase. One of the purposes of the
study is to improve the understanding of the influence of a fracture on the GOGD process. In the
fractured case, a space is created around the core sample inside the core holder and the space is
considered as a surrounding fracture. During the experimental study, pressure, temperature and
recovery measurements are conducted.
Keywords: Fracture Interaction, CO 2 Injection, Oil Recovery
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