李根
LI Gen

• 1:中海石油有限公司天津分公司渤海石油研究院

摘要(Abstract)：

构造油藏存在地层倾角,它的存在使重力在油水运移过程中产生作用,从而影响流体的运动轨迹。通过将重力势引入直线供给边界附近一口井的复势函数的求取中,把重力势分布等效为平行均匀流的势分布,运用势叠加原理求出了存在倾角的直线供给边界附近一口井的势函数和流函线的表达式。通过分析流函数的特征给出了边水供给方向的波及面积计算方法,并评价了采液强度、地层倾角和井距边水距离对波及面积的影响,绘制了趋势曲线。计算结果表明在加入重力因素后,流线的分布形态、波及面积都发生了很大的改变。
The formation dip exited in the structural oil reservoir results in the gravity effects militating in the migration of the oil and water and the flow path of the fluids. By introducing the gravity potential into the calculation of the complex- potential function of the well near the straight supply boundary,the gravitational potential distribution can be equivalent to that of the parallel uniform flow,and moreover adopting the superposition principle of the potential,the mathematical expressions of the potential and stream functions are deduced for the above well with the formation dip. With the help of the characteristics of the analyzed stream function,the calculating method of the swept area is presented in the direction of the edge water supply,and moreover the influences are evaluated for the liquid production strength,formation dip angle and the distance between the well and the edge water on the swept area,finally the trend curves are drawn. The calculation results show that after considering the gravity factor,the great changes happen in the distribution configurations of the streamlines and swept area.

关键词(KeyWords)： 边水油藏;波及面积;重力作用;流线;地层倾角
edge-water oil reservoir;swept area;gravity effect/action;streamline;dip angle

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专项“大型油气田及煤层气开发”(2011ZX05057)

作者(Author): 李根
LI Gen

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