标题:
页岩气开发经济性及其影响因素——以宾夕法尼亚州为例Shale Gas Development Economy and Its Influencing Factors Based on Pennsylvania
作者:
徐博, 冯连勇, 敖晓文
关键字:
页岩气, 经济评价, 敏感性分析, 宾夕法尼亚州Shale Gas, Economic Evaluation, Sensitivity Analysis, Pennsylvania
期刊名称:
《Management Science and Engineering》, Vol.5 No.1B, 2016-02-29
摘要:
美国的页岩气开发引发了全世界范围内的页岩气开发热。加拿大和中国也加快了页岩气开发和生产的脚步。页岩气的发展将极大地影响着全球天然气市场。本文在分析了影响页岩气开发资源、技术和经济因素，结合常规油气经济评价方法，建立了基于净现值法的页岩气开发经济评价模型。本文选取宾夕法尼亚州2011年开钻的连续4年生产且年均生产期超过11月的115口页岩气井作为经济评价的数据样本，并根据最终可采储量的预测将样本分成P1-P4四个不同的资源等级，同时预测了未来价格从而得出开发周期内的产出。通过分析宾夕法尼亚州页岩气开发的各项投入和费用来计算投入，并根据投入和产出计算不同资源等级气井项目生命期内各年的净现金流量，得出最终的净现值指标，体现了不同资源等级气井的经济性。并对经营成本和气价进行了敏感性分析，综合分析各种不同取值情况下气井的经济表现。
Shale gas development in United States led
to a global shale gas development boom. Canada and China are developing and
producing the shale gas. Development of shale gas will influence the global
natural gas market. Based on analyzing the resources, technology and economic
factors that influence the effect of shale gas development and referencing the
economic evaluation method for conventional oil and gas, this paper established
shale gas development economic evaluation model based on NPV method. We choose
115 wells with more than 11 months production period per year individually from
2011-2014 in Pennsylvania as evaluation sample, which can be divided into P1-P4
grade according to the EUR characteristic. Using the first four years of real
output, price data and forecasts about the future price and output, this paper
calculates the output of the development cycle; and through the analysis of the
various inputs of shale gas development in Pennsylvania and charges, we can
predict the monetary input. Finally, we can utilize the input and output
parameters to calculate the net present value (NPV) index of wells in different
production grade. And the sensitivity analysis was carried out on the gas price
and operation cost to discuss the economy of wells in different scenarios.