#TITLE_ALTERNATIVE#
In initial conditions, a gas condensate reservoir is usually found in a one-phase state, which is the gaseous phase. Production of the reservoir will cause a decrease of reservoir pressure until it falls below the dew point pressure. When the pressure around the wellbore is below the dew point press...
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| Main Author: | |
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/13523 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | In initial conditions, a gas condensate reservoir is usually found in a one-phase state, which is the gaseous phase. Production of the reservoir will cause a decrease of reservoir pressure until it falls below the dew point pressure. When the pressure around the wellbore is below the dew point pressure, liquid condensate will begin to form which in turn will cause a restriction to the gas flow around the wellbore thus creating an additional skin effect and also decreasing gas relative permeability. To determine the recovery factor of a gas condensate reservoir at plateau rate, there are several parameters that need to be taken into account. These parameters include the composition of the gas condensate, permeability, and initial reservoir pressure. The gas composition affects recovery factor because composition determines the flow phase that occurs. A larger fraction of light components in the gas condensate will produce a higher recovery factor at plateau rate. The same goes for permeability; a higher permeability will result in a higher recovery factor at plateau rate. In addition, pressure also influences the recovery factor of a gas condensate reservoir. A higher initial reservoir pressure yields a higher gas condensate recovery factor at plateau rate. Therefore a correlation is needed to estimate the gas condensate recovery factor based on the available parameters. This will aid in estimating the gas condensate recovery factor in the early stages of reservoir development, when the reservoir has just been discovered. Utilizing a correlation, the use of reservoir simulation to predict the recovery factor of a condensate gas reservoir is superfluous. In this study, such a correlation to estimate gas condensate recovery factor at plateau rate as a function of gas composition, permeability, initial reservoir pressure, and gas rate is generated using a compositional simulator. |
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