摘要
在描述水驱特征曲线的基础上 ,推导出聚合物驱条件下驱替特征曲线的理论表达式 ,并应用大庆萨中油田聚合物工业化应用区块的实际资料 ,在不同坐标系下 ,研究了累积产油量、累积产液量、累积产水量之间的关系 ,并分析了聚合物驱替特征曲线的特点 .结果表明 ,在聚驱阶段稳定后 ,累积产油量与累积产水量的关系和累积产油量与累积产液量的关系在直角坐标系中呈线性关系 ;累积注入量与累积产油量在直角坐标系中的曲线可为 3段 ,明显表示出聚合物驱油的 3个过程 ,在双对数坐标系中 。
The theory expression of the displacement characteristic curve under polymer flooding has been derived based on the displacement characteristic curve under water flooding. By means of the real data of the polymer applied tracts of Sazhong oil field in Daqing, we also studied the relations among cumulative oil production, cumulative liquid production and cumulative water production in different coordinate systems and analyzed the characteristics of the displacement characteristic curve under polymer flooding. Results show that straight lines do appear in polymer flooding steady period in graph of cumulative oil production, cumulative water production, graph of cumulative oil production and cumulative liquid production. The curve of cumulative injection and cumulative oil production in Cartesian coordinate assumes three segments that presents three processes in polymer flooding obviously and log-log graph of cumulative injection and cumulative oil production assumes linear relation.
出处
《大庆石油学院学报》
CAS
北大核心
2002年第1期101-104,共4页
Journal of Daqing Petroleum Institute
基金
黑龙江省自然科学基金项目 (A0 0 -19)
关键词
石油开采
聚合物驱替特征曲线
累积产油量
累积产水量
累积注入量
模型
displacement characteristic curve under polymer flooding
cumulative oil production
cumulative water production
cumulative injection
