SPG复合调剖剂研究及应用

Research and Application of SPG Compound Prof ile Control Agent

李　平 何　长 范　靖 韩学良 杜祥义
 

胜利石油管理局孤岛采油厂

Gudao Oilfield , Shengli Oilfield Company , SINOPEC, Shandong 257231, P. R. China

针对孤岛油田开发进入特高含水期储层物性发生很大变化的特点,研制出了由有机聚合物单体、无机膨润土和添加剂复合而成的SPG复合调剖剂。它具有耐温60～80 ℃,膨胀2.5～20 倍,突破压力3.2 MPa ,堵水率90 %的特点。
现场调剖施工9 口井,单井启动压力平均增加1.8 MPa ,对应39 口油井中,受效油井26 口。SPG复合调剖剂原材料易得,成本低,施工工艺简单,适用于砂岩油藏调剖堵水,具有良好的推广应用前景。

Since the Gudao Oilfield had entered into special high water bearing stage , great changes of the reservoir’s physical properties had taken place. For that , SPG compound profile control agent formulated by organic polymer monomer , bentonite and additive , which have the characters of heat resistance (60℃- 80℃) , expansibility (2.5 - 20) , its breakthrough pressure is 3.2 MPa and its water shutoff rate is 90 %. This agent was injected in 9 wells , individual well’s starting pressure rise 1.81MPa , correspondence oil well responding rate was 66.6 % , total added oil was 8 999.6 t , input-output ratio was 1.40.