吐哈油田水平井优化设计技术研究与应用

Study and application of horizontal well optimization design in Tuha oilfield

利用理论研究和数值模拟技术,对吐哈油田水平井的井网形式、水平段方向、水平段垂向位置和水平段长度进行了优化设计;以精细油藏描述为基础,结合油藏地质特征,优化各项地质参数,实现最优设计。通过水平井的优化设计,水平井在吐哈油田各类油藏实施效果好,成功率高;水平井实钻情况与地质认识符合较好,大部分参数吻合程度高。

The optimized designs are preformed in the well pat-tern,and the direction,horizontal section and vertical posi tion of horizontal well by the agency of theoretical study and numeral stimulation.On the basis of fine reservoir descrip tion and by combining the geological character of reservoir,all geological parameters are optimized to obtain a optimiza-tion design.Through the optimization design of horizontal well,the performance of horizontal well in all kinds of reser-voirs is good in effect and a success ratio is high.The drill ing results of horizontal well are primarily correspondent with geological cognitions.