大庆石油地质与开发2017，Vol.36Issue(2)：149-153,5.DOI:10.3969/J.ISSN.1000-3754.2017.02.025
页岩气藏可采储量计算新方法
NEW CALCULATING METHOD OF THE RECOVERABLE RESERVES FOR SHALE GAS RESERVOIRS
摘要
Abstract
In the several previous calculating methods of the recoverable reserves of the shale gas,the pressure drop method doesn't consider the particularity of the shale gas reservoirs,the method of the production decline curve is only adopted to the wells that the production decline has occurred,the method is also not applicable to the shale gas reservoirs with low porosity and permeability although the controllable reserves are obtained by the static formation pressure and recoverable reserves are acquired as well.The method seeding the production indicative curve was proposed by means of the production data acquiring the controllable reserves of the shale gas reservoir,and furthermore taking advantage of the consideration of the adsorbed-gas material balance equation,the recoverable reserves under the abandonment pressure were calculated.The study achievements show that for every 1 MPa reduction of the abandonment pressure,the recovery is about enhanced by 3.4％.This method can not only be applied to the producing wells which production begins to decline,but also be adopted to the steady production wells that the gas flow has reached pseudo-steady state.The method possesses a certain application value.关键词
物质平衡方程/废弃压力/控制储量/可采储量Key words
material balance equation/abandonment pressure/controllable reserves/recoverable reserves分类
能源科技引用本文复制引用
王董东,梅海燕,杨龙,袁恩..页岩气藏可采储量计算新方法[J].大庆石油地质与开发,2017,36(2):149-153,5.基金项目
大型油气田及煤层气开发国家科技重大专项“涪陵页岩气技术集成与示范体系建设”(2016ZX05060006)、大型油气田及煤层气开发国家科技重大专项“东海厚层非均质性大型气田有效开发关键技术”(2016ZX05027004). （2016ZX05060006）
