一、研究目的 由于烃气和CO_2气资源少,成本高,局限性大,而从空气获取氮气和利用主要由氮气组成的烟道气较便宜,所以,最近用氮气作驱油剂提高采收率的兴趣明显增加。 这样,全苏石油科学研究院在院长Г.Г.瓦希托夫领导下进行了室内研究并作了报 First, the purpose of the study As the hydrocarbon gas and CO_2 gas resources, high cost, limitations, but from the air to obtain nitrogen and flue gas is mainly composed of nitrogen cheaper, so the recent use of nitrogen as an oil displacement agent to enhance recovery Rate of interest increased significantly. In this way, All-Russian Petroleum Institute of Science under the leadership of Dean Г.Г. Vatitov conducted an indoor study and made a report