Table of Contents
Journal of Petroleum Engineering
Volume 2014, Article ID 538021, 9 pages
http://dx.doi.org/10.1155/2014/538021
Review Article

How Do Thermal Recovery Methods Affect Wettability Alteration?

Department of Petroleum Engineering, Texas A&M University, College Station, TX 77840, USA

Received 10 June 2014; Revised 24 September 2014; Accepted 26 September 2014; Published 19 October 2014

Academic Editor: Guillaume Galliero

Copyright © 2014 Abhishek Punase et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We will investigate the effect of temperature on wettability. First, we will list and summarize the different schools of thoughts from previous literature describing wettability changes for sandstone and carbonate reservoirs at elevated temperature. Next, we will describe the properties that affect wettability: how they alter wettability and how they are affected by temperature. After that, we will present indications of wettability changes and current wettability measurement techniques. Following this, case studies describing how wettability change influences reservoir characteristics and field performance during thermal recovery processes will be discussed. The thermal recovery methods included in the case studies were steam flooding, cyclic steam injection, hot water flooding, and in situ combustion. The main and very important take away from this study is that temperature induced wettability change is determined by many possible mechanisms combined together and not by just one or two phenomena occurring simultaneously. Finally, we will propose a reasonable scheme for wettability alteration during dry forward combustion, which needs further investigation.