#TITLE_ALTERNATIVE#
Flare Gas is a production residual gas that directly flared into air because lack of surface facility or excessive gas production. The reason why this hydrocarbon gas being flared is because the economic factor which is unprofitable to produce gas, with the consideration of required surface facility...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/23679 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Flare Gas is a production residual gas that directly flared into air because lack of surface facility or excessive gas production. The reason why this hydrocarbon gas being flared is because the economic factor which is unprofitable to produce gas, with the consideration of required surface facility to treat the gas. From the flare gas contract of sale itself, flare gas supply unilaterally determined only from the suppliers so that the utilization of flare gas is getting more risky. <br />
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This study comprehensively discuss the economics of gas flare sales from the technic aspect, business aspect, and legal aspect which will be used as a source of energy by buyers. This study consist of optimization for flare gas sales by considering the economic parameters such as Net Present Value and Internal Rate of Return. First observation is conducting an approach to the reservoir performance prediction by simulation for the consideration in the procurement of contract. Then, the second observation for the optimization aspects are from the technical aspect which is represent by content of impurities in flare gas that consist of CO2 and H2S, followed by third observation for the optimization in business aspect by doing a sensitivity test to the absence of gas supply related to the problem of flare gas and calculating maximum profit of minimum contract time from the specific cases. <br />
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The first observation resulting the reservoir model that close to the reservoir condition in this study with value of 16.732 MMSTB for OOIP, 17% porosity, and average gas rate around 1.99 MMSCFD during contract period. Result from sensitivity test regarding to impurities content shows that for economical treatment facility procurement, minimum average rate of gas suggested is 1.20 MMSCFD with minimum impurities content 21.96%. From the business side obtained the values of maximum time limit of gas supply absence for every value of average gas rate and specific impurities content or with treatment, as well as the values of maximum profit from specific scenario that meet the IRR criteria on a shorter contract term. By considering such optimization factors, the prospect of flare gas utilization segment can be evaluated comprehensively. |
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