冷1块稠油低温空气氧化物模研究

Low-temperature oxidation of air-displacement mode experiment about heavy oil in Block Leng1

为了进一步发展注气提高采收率技术,提高超稠油油藏的开发效果,采用低温空气氧化驱油物理模型实验,研究建立了二组线型物理模型,开展了冷1块稠油注空气驱油实验。实验研究了冷1块稠油与空气发生低温氧化的温度、产出含氧量,并对其原油低温氧化采油的可行性进行了分析。实验结果表明:随着温度的升高,冷1块稠油低温氧化的采出程度增大;将空气中的氧消耗到安全值以内,浸泡的时间随温度升高不断减少;冷1块进行注空气吞吐可以采出6.86%～10.24%的原油,技术上是可行的。

In order to enhance oil recovery a step further by gas injection and improve the development effect of super-heavy oil reservoirs, two linear models of physics are set up through experiment study using low-temperature oxidation of air--displacement mode. a heavy oil cold air injection drive experiment has been carried out, which studied the temperature and oxygen production of Lengl Block when low-temperature oxidation take place between heavy oil and cold air. Feasibility analysis is made for producing crude oil in low-temperature oxidation condition. The results show that as the temperature is rises, the degree of recovery is increased. The oxygen in the air will be consumed to the security value. The soaking time wild he shortening as the temperature rises. 6.86 to 10.24 percent of crude oil can be produced by air injection and the technical is feasible.