圆形封闭油藏分层合采油井产能优化研究

The Optimized Analysis and Study of the Oil Well
Productivity of the Separate Zone whole Production in
Circular Sea led Reservoir of Stratified Layers

 景卫忠¹ 牟珍宝² 陶凤云¹ 代文革¹

中原油田分公司采油五厂 中国地质大学能源学院（北京）

 　 针对多层圆形封闭非均质油藏多层合采的情形,在前人研究的基础上,给出了在各层供给半径不相等的情况下,油井定产生产或定压生产时的井壁压力、各层层面流量的计算公式和计算方法。通过一个两层油藏的算例,采用Stehfest数值反演方法分别计算了各油层层面流量的变化,并就各层供给半径的大小对油井产能的影响展开分析和讨论,该方法对矿场圆形封闭多层合采油层的配产配注、动态预测以及开发调整具有重要的指导意义。

Based on the separate zone whole p roduction of the
exp loitation of circular sealed reservoir, the paper p resented
the formula and the methods of the wall of a well p ressure,
flux under the conditions of the constantwell-bore p ressure or
constantwell-bore p roduction and different supp ly radius. The
numerical computation of two layerswhich ismade by Stehfest
numerical inversion computed separately the variety of the
wall of the well flux and analyzed and discussed different
supp ly radius which influences oil well p roductivity. The
methods can instruct the allocation of p roduction and injection
rates, dynamic forecast and development adjustment of the
separate zone whole p roduction in circular sealed reservoir of
stratified layers.