致密油资源评价方法及关键参数研究

Tight oil resource assessment methods and key parameters

美国致密油产量的大幅提升和我国首个亿吨级陆相致密油的发现,确立了致密油在非常规油气领域的重要地位。为客观评价我国致密油气资源潜力,重点介绍了致密油资源评价方法和评价参数研究新进展。在借鉴北美致密油资源评价方法的基础上,结合我国致密油勘探实践和研究取得的新认识,形成了我国陆相致密油分级资源丰度类比法、小面元容积法和EUR类比法为主体的致密油资源评价方法,建立了致密油地质评价和资源评价关键参数体系,创建了致密油资源分级评价标准和致密油资源评价流程,为有效开展致密油资源评价提供了重要依据。

With the increase of tight oil output in the United States and the discovery of the first 100 million tons of tight oil in China, the important position of tight oil in unconventional resources fields is estab lished.In order to know about China＇s tight oil resources size,and objectively assess China continental tight oil resource potential and distribution, tight oil resources evaluation methods and key parameters have been studied in this paper.Based on the North American tight oil resources evaluation method, combined with the new development of China^s tight oil exploration,three methods have been formed,such as hierarchical resource abundance analogy method,EUR analogy method, small cell volumetric method.All these methods provide an important basis for effective evaluation of tight oil resources.