摘要
在油藏开发过程中,随着水平井水平段长度的增加,水平井段与油藏的接触面也随之增加,同时井筒内流体的流动阻力也增加,从而导致水平井的产液量减少,即水平井的最终产量是2个相互制约的因素共同作用的结果。利用遗传算法全局寻优的特点,结合一种计算无限导流和有限导流情况下水平井产量的井筒/油藏耦合模型,提出了一种用于水平井水平段长度的优化设计方法。该方法可以在不同的油藏地质模型中使用。
As the length of a horizontal well section increases, the contact area between the horizontal well and reservoir increases. At the same time, the resistance to fluid flow in the horizontal well also increases, which has a negative effect on the fluid productivity of a well. The overall performance depends on the balance of the above two opposing factors. According to a reservoir-wellbore coupling model for calculating the fluid productivity of a horizontal well under the conditions of the infinite-conductivity and finite-conductivity, the genetic algorithm was used to find a general optimal solution. A methodology for designing the optimum length of the horizontal section in a horizontal well was developed. This method can be run under a variety of constraints.
出处
《石油学报》
EI
CAS
CSCD
北大核心
2008年第2期296-299,共4页
Acta Petrolei Sinica
基金
国家高科技研究发展规划(863)项目(2006AA062236)
山东省自然科学基金项目(Y2007F13)联合资助
关键词
水平井
水平段长度
优化设计
遗传算法
井筒/油藏耦合模型
horizontal well
horizontal section length
optimum design
genetic algorithm
reservoir-wellbore coupling model
