济阳坳陷圈闭勘探经济评价初探

油气勘探投资具有阶段性特征且须以赢利为目的,勘探的经济效益和成果价值并不取决于勘探本身,而取决于未来的开发与生产经济效益,这就决定了圈闭勘探经济评价必须是勘探开发一体亿评价。根据圈闭的基本特征,建立其地质模式和油藏类型,通过与已经开发的相似油气藏样本进行“类比”,计算控制储量、探明储量、可栗储量和油气产量,模拟圈闭勘探开发全过程,采用国际通用的现金流量法计算经济评价指标,预测圈闭内部收益率、净现值和净现值率,初步实现了圈闭经济评价。实践证明,地质评价是整个油气勘探评价工作的基础,经济评价对勘探决策具有指导意义。

Preliminary discussion of economic assessment on trap exploration in Jiyang Depression

Petroleum exploration has the stage characteristic and its goal must be the profit. Economic benefit and result value of the trap exploration are not decided by exploration itself, but by the economic benefit of future development and. production. Thereforethe economic assessment of the trap exploration must be to inte-grated evaluation of exploration and development processes. Ceo-logic pattern and reservoir type of the traps are established ac cording to the basic features of the traps. After it is "compared" with the developed similar petroleum reservoirs, controlled re-serves,proven reserves,recoverable reserves and petroleum production rate may be calculated, and the whole process of the trap exploration and development may be simulated. Cash flow method internationally used is applied to the calculation of economic as-sessment index and the prediction of IRR, NPV and NPVR, which are used to perform economic assessment. The practice proves that geologic assessment is the foundation of the whole petroleum exploration assessment and the economic assessment has guiding significance in exploration decision - making.