Assessing the application of miscible CO2 flooding in oil reservoirs: a case study from Pakistan

Autor: Amanat Ali Bhatti, Arshad Raza, Syed Mohammad Mahmood, Raoof Gholami
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Journal of Petroleum Exploration and Production Technology, Vol 9, Iss 1, Pp 685-701 (2018)
Druh dokumentu: article
ISSN: 2190-0558
2190-0566
DOI: 10.1007/s13202-018-0504-x
Popis: Abstract Miscible carbon dioxide (CO2) flooding has been recognized as a promising approach to enhance the recovery of oil reservoirs. However, depending on the injection strategy and rock/fluid characteristics, efficiency of the miscible CO2 flooding varies from reservoir to reservoir. Although, many studies have been carried out to evaluate the performance of the miscible CO2 flooding, a specific strategy which can be strictly followed for a hydrocarbon reservoir has not been established yet. The aim of this study is to assess one of Pakistan’s oil reservoirs for miscible CO2 flooding by applying a modified screening criterion and numerical modeling. As such, the most recent miscible CO2 screening criteria were modified, and a numerical modeling was applied on the prospective reservoir. Based on the results obtained, South oil reservoir (S3) is chosen for a detailed assessment of miscible CO2 flooding. It was also found that implementation of CO2 water-alternating gas (CO2-WAG) injection at early stages of production can increase the production life of the reservoir.
Databáze: Directory of Open Access Journals
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