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本文介绍了克拉玛依九_1区三井组蒸汽驱试验后期转为热水驱(油井产出水回注)提高最终采收率的数值模拟研究中,不同注水方式对热水驱效果的影响。模拟结果表明:间歇(脉冲式)注水具有明显的增油降水特点;后期降低注水量也可以降低含水率,但会影响产油量;根据油藏的实际条件选择灵活的注水方式对本试验区的蒸汽驱后热水驱极为重要。
This paper describes the effects of different waterflooding methods on hot waterflooding in a numerical simulation study to improve the final oil recovery rate after the steam flooding test at the Mitsui Fushui coal mine in the 9-1 zone of Karamay in the later period of hydrothermal flooding (oil well injection). The simulation results show that intermittent (pulsed) water injection has the obvious characteristics of increasing oil precipitation; reducing the water injection amount later also can reduce the water content, but it will affect the oil production. According to the actual conditions of the reservoir, Steam flooding after hot water drive is extremely important.