T Improving Research Of International Oil Project Investment Evaluation System

Crude Oil and Natural Gas, as an irrebornl, strategic mineral resource, has becoming a main energy under demand from economic growth of global. The global cooperation in oil and gas scopes included in exploration and development, production in upstream as well as pipeline construction, transportation, oil sale, oil future trading in downstream. The international oil company invests in international oil and gas project by funds, technical, work contract to share oil entitlement and funds return, the resource countries invest by reserve and reservoir in order to develop its resource, attain high revenue and boost local economy, therefore, in the effect of economy risk such as exchange rate fluctuate, interests up, inflation, and politics risks of policy's change, civil war, national conflicts, the international oil investment has increasingly complicating investment environments , more indefinitely factors and marginalized return, it is necessarily to appraisal the quantified risk factors possibly under the mode of contract of oil cooperation, to analysis the system of finance and tax and the risk of politics and economy.Nowadays, the economy appraisal system in overseas projects mainly consisted of the dynamically indexes and static indexes. In purpose of evaluate the profitability and economy feasibility of projects ,we must make the master project cash flow statement, working out Net Present Value (NPV), Discounted Present Index (DPI), and Internal Return Rate (IRR), and Basic Discounted Rate (BDR), and financial internal rate of return (FIRR), the time period for recovery of investment etc key Indexes. But it has some problems theoretically and practically in the system of economic appraisal to effect results of evaluation of investment return. Firstly, we analysis the oil industry, the environmental of international politics and economy and the impacting of resource countries, meantime, research the trendy oil price changing, all kinds of quantified factors, to set up improved system of oil investment appraisal, minima the investment risk, and maximize the value of the investment.