Petroleum Reservoir Evaluation and Development >
2021 , Vol. 11 >Issue 3: 465 - 468
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2021.03.024
Influence of different oil saturation on fire flooding
Received date: 2019-04-29
Online published: 2021-06-24
In view of the unclear influence of different oil saturation on the process and effect of fire flooding, the feasibility of fire flooding under different oil saturation was explored by using one-dimensional physical model device of fire flooding, and the experimental study on the influence of different oil saturation on gas injection adjustment and production effect of fire flooding was carried out. The experimental results show that the high temperature combustion can be realized when the oil saturation is above 15 %, but at this time, all the crude oil is converted into fuel for combustion. In the process of fire flooding, the greater the oil saturation is, the greater the oil wall is, and the greater the migration resistance is. It is necessary to continuously improve the gas injection speed to increase the driving force, resulting in the increase of model pressure with the increase of gas injection speed. With the increase of oil saturation, the displacement efficiency increases and the gas oil ratio decreases, indicating that the better the production effect is.
Key words： oil saturation; fire flooding; gas injection rate; pressure; displacement efficiency
Weiwei WANG . Influence of different oil saturation on fire flooding[J]. Petroleum Reservoir Evaluation and Development, 2021 , 11(3) : 465 -468 . DOI: 10.13809/j.cnki.cn32-1825/te.2021.03.024
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