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7th Middle East Geosciences Conference and Exhibition
Manama, Bahrain
March 27-29, 2006
Reservoir
in Order to Improve the Recovery
Factor
1 B.Sc student of mining exploration engineering ; Department of Mining, Metallurgy and Petroleum ;
AmirKabir University, Tehran, Iran, phone: (21) 88805063, [email protected]
2 Assistant Professor; Department of Mining, Metallurgy and Petroleum; AmirKabir University, Tehran, Iran
It has been a long time that oil reservoirs in Iran have been producing with the natural pressure and now because
of decline in reservoir
pressure, EOR methods have to be done for increasing the pressure and recovery. Water Flooding is
one of the conventional and economic EOR methods that are appropriate for offshore reservoirs in Iran. It is cost-effective
and usual in offshore reservoirs for these reasons:
- Water is enormously available in Iran offshore reservoirs.
- Water is an effective displacing fluid for oil and usually has a high recovery factor.
- Water Injection is not a costly process and it doesn't require an advanced technology.
- Water Injection problems are low, as well it's pollution is not considerable compared to the other processes.
- Water diffuses all over the oil formation easily.
In this paper, factors affecting water flooding to be successful are considered. These factors are:
Reservoir
geometry
- Fluid properties
Reservoir
depth
- Primary
drive
mechanism
- Fluid saturations
Reservoir
heterogeneity
- Lithology and
reservoir
rock properties
- Water flooding pattern (location and number of production/injection wells, production/injection rate and horizontal/vertical wells)
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