渤海S油田注聚井注入压力界限潜力POTENTIAL OF THE POLYMER INJECTION PRESSURE LIMIT IN BOHAI S OILFIELD
王锦林,吴慎渠,王晓超,王宏申,石端胜,魏俊
WANG Jinlin,WU Shenqu,WANG Xiaochao,WANG Hongshen,SHI Duansheng,WEI Jun
摘要(Abstract)：
渤海注聚油田的井口注入压力界限是在油田早期注水时计算得到的,开始注聚后,由于注入流体的性质发生改变,原有的井口注入压力界限已不适用当前的注入状况,在一定程度上影响了配注。采用压力节点分析方法,优化计算参数,对注聚井井口注入压力界限潜力进行分析研究。结果表明,S油田注聚井井口注入压力界限较原给定的井口注入压力界限(10 MPa)提高幅度可达23.2%~52.3%。研究成果为适时调整注聚阶段的井口注入压力界限、提高配注提供了理论依据。
The wellhead injection pressure limit of the polymer well in Bohai Oilfield was calculated at the time of the early water injection. After the polymer injected,the properties of the injected fluid were changed,the original wellhead pressure limit is not suitable to the current conditions any more,and thus the injection allocation is influenced to some extent. With the help of pressure nodal analysis method,the calculating parameters were optimized,and moreover the analysis and study were engaged for the potential of the wellhead pressure limit in the polymer injecting well. The results show that the calculated wellhead polymer injection pressure limit of S Oilfield,comparing with the original given one(10 MPa),can be increased at a range of 23. 2%-52. 3%. These achievements have provided a certain theoretical evidences for the timely adjustment of the wellhead injection pressure limit and improvement of the injection allocation at the polymer injection stage.
关键词(KeyWords)：
聚合物驱;黏度;注入压力;界限注入量;非线性
polymer flooding;viscosity;injection pressure;injection limit;nonlinear
基金项目(Foundation): 国家重大专项“海上大井距多层合采稠油油藏聚合物驱剩余油分布机理研究”(2011ZX05024-002-001)
作者(Author):
王锦林,吴慎渠,王晓超,王宏申,石端胜,魏俊
WANG Jinlin,WU Shenqu,WANG Xiaochao,WANG Hongshen,SHI Duansheng,WEI Jun
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