红岗油田萨尔图油藏改变液流方向试验研究

Experimental Study on Changing Fluid Flowing Direction in Saertu Reservoir of Honggang Oilfield

红岗采油厂萨尔图油藏目前已进入特高含水期。在井网演变历史分析、精细油藏研究的基础上,针对北区反十三点井网平面矛盾突出的特点,开展了改变液流方向试验(一是抽稀井网试验;二是"十"字号井转注试验),从剩余油研究、水驱规律多角度出发,实现了井网调整试验的科学性和合理性,减小了层间矛盾,为提高水驱效率提供了依据,并取得了可观的效益。

In Saertu Reservoir of Honggang Oilfield,oil production was started in 1974,it was at high water cut stage.On the basis of analyzing well pattern history and fine reservoir description,in allusion to the characteristics of reversed 13-spot well pattern,experiments were conducted for changing the fluid flowing direction.Starting from the aspects of remaining oil distribution and weterflooding rules,thinkings are expanded,thus well pattern adjustment experiment is scientifical and rational,the interlayer contradiction is reduced,bases are provided for enhancing the waterflooding efficiency,considerable benefit is obtained.