空气采油在油井中的研究与应用

Study and Application of Air-injected Oil Extraction in Oil Well

空气采油工艺在提高原油采收率方面有显著的作用,在一些低渗性轻质油藏和重油油藏中使用效果很好。空气采油的应用包括火烧油层和高压注入空气技术,在重油稠油井开采时多用火烧的方法,对于轻质油藏低温氧化的油井多选用高压注入空气技术。本文从空气采油的具体应用出发,分析了该采油工艺的作用机理和发展前景,认为进一步完善空气采油技术对我国原油的开采具有重要意义。

Air-injected oil extraction technology has obvious function on improving the recovery efficiency of crude oil and it has good utilization effect for some low-permeability light oil reservoir and heavy oil reservoir. The application of air-injected oil extraction includes combustion oil in-situ and high-pressure air-injected technology, besides, the combustion method is often adopted for the exploitation of heavy oil and thickened oil and high-pressure air-injected technology is often adopted for the light oil reservoir in low-temperature and oxidized oil wells. In this paper, starting from the concrete application of air-injected oil extraction, it has analyzed the action mechanism of and development prospect for this oil extraction technology and the conclusion has been made that further perfection of air-injected oil extraction technology has important significance for the exploitation of China＇s crude oil.