二类油层125米井距空白水驱阶段开采规律认识

The Blank Space Water Drive Phase of Secondary Oil Layer 125 Meters Well Spacing Extract Law Cognition

二类油层125m井距空白水驱阶段由于注采井距小,呈现含水上升速度快,产量递减快的开采特征,本文通过应用精细地质描述成果结合动态变化特征,对二类油层上返采用125m注采井距的初期及空白阶段开采规律进行了总结,并与其它不同井距条件下的二类油层区块进行对比分析,同时对区块单井组进行了分类,对其它二类油层空白水驱阶段井组见效特征及最终开发效果评价等方面起到指导作用。

Because of injector producer distance of second reservoir 125 well spacing blank space waterdrive phase is small,it presents the feature of extract that the containing water ascending velocity fast,production declines fast,this paper through the application of alert geologic description outcome combined dynamic variation characteristics,sum up the extract regular pattern of second reservoir 125 well spacing blank space water drive phase,compare with other different well spacing second reservoir block,and at the same time individual well formation is classified,it can guide the response feature and eventually development effect evaluation of the else well formation.