According to the new criterion for classification of oil and gas resources / reserves ( gb / t19492 - 2004 ) issued in 2004 , this paper reviews the studied methods at home and abroad for the purpose of establishment of new series of recoverable reserves such as technically recoverable reserves , economic recoverable reserves , sub - economic recoverable reserves and remaining economic recoverable reserves of oil - gas fields 摘要按照2004年颁布的新的《石油天然气资源储量分类》 ( gb - t19492 - 2004 )标准，为了建立和形成油气田技术可采储量、经济可采储量、次经济可采储量和剩余经济可采储量等新的可采储量系列，在总结国内外研究方法的基础上，结合油田的地质开发特点，根据我国现行的财税制度，以现金流法为主要方法，进一步研究提出了经济极限法、井网密度法、边际成本法、类比法等经济可采储量计算方法。
