Successful Case Studies on the Use of Polymers to EOR by Polymer Flooding

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Kyani Ashkan; Hashemizadeh Abbas

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Journal: PETROLEUM RESEARCH Year:2022 | Volume: | Issue: Page(s): 24-50

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Title

Successful Case Studies on the Use of Polymers to EOR by Polymer Flooding

Author(s)

Kyani Ashkan | Hashemizadeh Abbas | Issue Writer Certificate

Keywords

Polymer FloodingQ4

EORQ4

Recovery FactorQ4

Mobility RatioQ4

Case StudyQ4

Abstract

In the primary oil recovery, which is done using natural mechanisms in the reservoir, less than one third of the volume of petroleum is produced in the best cases for various reasons, including the process of reducing the pressure caused by production. In addition, by adopting secondary methods of oil recovery, such as water injection, despite the widespread use, due to the high mobility of water relative to oil, a large part of the resources will not be able to be produced. Therefore, in order to meet the demand for crude oil, which is constantly increasing, there is always a need to use EOR methods of overdraft to increase the recycling rate after the start of production. One of the efficient methods to increase the efficiency of the crude oil sweeping process is polymer injection (or flooding), which has been used as one of the chemical methods of oil recovery for many years. Since Case Study is a wide, in-depth, and detailed study of a particular case and thus accesses a wide range of knowledge for the analysis of complex systems, the assurance of Case Study research that all components have been examined is assured. In this study, after a comprehensive review of successful case studies, EOR by Polymer Flooding operations, the factors and conditions affecting each of the stages of polymer selection, injection operations and then its impact on the rate of increase in production rate and also the rate of reservoir oil recovery has been studied. The results of this operation in different oil fields show the addition of suitable polymer to water in the flooding process and in different conditions, the potential to reduce water production and also reduce the amount of oil saturation remaining in the reservoirs and thus increases oil Recovery Factor.

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