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Increasing production in the heavy oil reservoir is one of the things that are being intensively done, considering the amount of oil that remains in the reservoir after the primary recovery stage. It is known that there are still 5000 billion barrels of heavy oil in the world still lagging in the re...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/28123 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Increasing production in the heavy oil reservoir is one of the things that are being intensively done, considering the amount of oil that remains in the reservoir after the primary recovery stage. It is known that there are still 5000 billion barrels of heavy oil in the world still lagging in the reservoir which means it is 2.5 times more than the remaining of light oil. One method that can be used is to do cyclic steam stimulation (CSS). In the application of CSS, technoeconomic factors must be something to be considered. From the technical side, there are several factors that can influence the result of CSS application in the reservoir, either natural factors such as permeability, viscosity, and reservoir temperature or operational factors such as injection rate, injection and soaking duration, and steam quality. While from the economic side, the amount of CAPEX, OPEX, and income that come from oil gain will determine the feasibility of implementing CSS. To be able to maximize the performance of CSS applications, it is necessary to know in what conditions this CSS will provide more benefits. <br />
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By using reservoir simulation, sensitivity study and design of experiment analysis on the effect of natural and operational parameters to the amount of oil gain that can be produced. From the analysis it was found that the duration of injection was the most significant parameter affecting the amount of oil gain followed by reservoir temperature, permeability, viscosity, injection rate and steam quality respectively. Then through a simple economic evaluation it was found that the CSS method can provide an advantage of up to 294 MUSD with an OPEX value of 20 USD/bbl. However, as we know that the OPEX value can be variative enough, the sensitivity of the OPEX value has been done with conclusion that when OPEX is below 14 USD/bbl, CSS can provide the most extensive range of reservoir conditions and when the OPEX price has reached 38 USD/bbl it would not be profitable to apply. |
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