应用干扰试井确定水平井SNHW827井的来水方向

JUDGING THE WATER ORIENTATION OF THE HORIZONTAL WELL SNHW827 WITH INTERFERENCE TEST

在注水开发油藏中,一口油井周围往往存在多口注水井,当油井发生水淹水窜后,首先要准确判断油井的主要来水方向,然后才能对注水井进行动态调水。判断井间地层是否连通及油井来水方向目前常用两种方法,一是干扰试井,二是注示踪剂。示踪剂监测成本费用高,现场实施工艺复杂,周期较长。而干扰试井判断油井的来水方向现场便于实施,施工费用低,见效快。本文通过实例来阐述干扰试井在确定水平井来水方向中的应用,为油水井后续措施提供资料和依据。

In waterflooding oil pool,there are many water injectors around one oil well,when the oil well is waterfloodinged and breakthrough,firtly,we should exactly judge the water orientation,then can adjust the amount of water in downflow well;At present,there are two ways to judge whether the stratum between oil well and water well is connective and where the water in oil well comes from:one is interference test,the other is tracer injection.The tracer test is expensive and on-the-spot technic is complicated,at the same time,test period is long.However,interference test is convenient,cheaper,easily conducted and effect can be quickly taken.In this paper,it is mainly expatiate the application of interference test in judging where the water in oil well comes from by example so as to offer reference data and basis for the following steps of oil and water well measure.