خلاصة:
This paper presents an economic evaluation of gas to liquids (GTL) project using “South-Pars” gas field of Iran based on the latest actual performing GTL projects. Iran has the world’s largest reserves of natural gas and can satisfy the projected long-term market demand of GTL products which have lower pollution and higher quality than refinery products. The results of cost-benefit analysis show that GTL project in Iran is fully economical. Sensitivity analyses are conducted and the results show that the capital expenditure is the most sensitive factor in this project, followed by the price of crude oil and the price of feed gas respectively.
ملخص الجهاز:
"In addition, we should perceive some important point using GTL technology in Iran and the necessity of economic evaluation of the project: ƒ Opportunity cost of delay in exploitation of planned phases of South- Pars gas field as the largest independent gas field in the world which is shared between Iran and Qatar ƒ Environmental considerations of GTL fuels and the increase in value added by producing GTL products compared to the export of crude natural gas ƒ Since imposed sanctions on Iran limit access to the financial resources, it is necessary to allocate resources to the most profitable projects based on economic considerations.
Table 3: Base case scenario assumptions of economic evaluation of GTL project in Iran Item description Value Capital Expenditures $100000/(bbl/d) Operating Costs 3% CE Feed gas price $2/MMBTU Depreciation 4% Debt 50% Inflation 2% Crude oil price $100/bbl Price difference between GTL products and refined products $+9.
4. Other Scenarios For the Economic Evaluation of GTL Technology in Iran: Changing the most important factors of the GTL project include capital expenditures, feed gas price and the price of crude oil, it will be possible to define other scenarios and determine the effects of changing these major parameters on the model results.
Then, with the capital expenditures of 70, 100, and 120 thousand dollars for each capacity unit 5 (b/d), the optimistic and pessimistic prices of crude oil based on the predictions of energy institutions like International Energy Agency and international oil& gas companies such as British Petroleum (50, 100, 150 dollars per barrel), and also the price of feed gas: $1, $2, and $3/MMBTU, other scenarios have been considered and the relevant changes on the model results (NPV and IRR) are shown."