安塞化子坪油区注水井水驱前缘监测技术应用与评价
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摘要
为了确定注水开发油田的注入水推进方向和水驱前缘的位置,研究了以无源地震、摩尔-库伦准则、断裂力学准则、波速场分布和地下渗流场分布等理论为基础的水驱前缘监测技术,通过该技术可以实现对水驱前缘、注入水的波及范围、优势注水方向等的实时监测.该技术在安塞化子坪油区化注1井的应用表明,通过对检测得到的原始微震点进行处理,可以最终得到水驱前缘监测图,由监测图可以获得优势注水方位和水驱波及情况.监测结果可为后期注采井网调整、挖掘剩余油潜力提供依据,达到提高最终采收率的目的.
In order to determine the waterflood direction and waterflood front location in waterflooding field,a waterflood front monitoring technology is put forward.The technology is based on no source seism,Kurl-Moore Criterion,the theory of fracture mechanics and so on.Its application in Huaziping area shows that,the waterflood front monitoring diagram can be obtained through the processing of original seismic points,and the dominant wterflood direction and the waterflood sweep state can be obtained according to the waterflood front monitoring diagram.The monitoring result can be used for the adjust of injection-production well pattern and the potential tapping of residue oil,and thus the final recovery factor can be enhanced.
引文
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