复杂断块油田最低经济含油面积确定方法

发现复杂含油断块后需要进一步投资以探明并开发油藏,对于特定的储集层较均质的含油断块,含油面积和油层埋深是决定投资效益的两个重要因素。在油层埋深和地面交通、水电等条件已定的情况下,结合复杂断块油田特点,利用断块内发现井所能提供的参数,以折现现金流法为基础构建最低经济含油面积计算模型。通过对比预期断块含油面积和最低经济含油面积大小,能迅速剔除明显不可行的投资项目,规避投资风险,提高决策效率。

Determination of Economic Limit Oil-Bearing Area in Complex-Fault-Block Oil Field

New oil-bearing fault block in a complex fault block oilfield needs more detailed prospecting wells to prove its reserves for development. For a given oil-bearing fault block with homogeneous reservoir rocks, its oil-bearing area and reservoir depth are the key factors for deciding results from investment. Under given reservoir depth, ground communication and hydroelectricity conditions, this paper presents the economic limit oil-bearing area model based on discounted cash flow method, using available data from discovery wells in the fault block integrated with characteristics of complex fault block oilfields. The comparison of prospective oil-bearing area with economic limit oil-bearing area could quickly eliminate the investment projects to be obviously unfeasible, so as to shun related risk and increase decision-making efficiency.