摘要
本文构建了蒸汽腔向下扩展阶段产能模型,模型假设在二维平面上蒸汽腔形状为“矩形+倒三角形”。模型考虑了变注汽速率对产能的影响,建立了蒸汽腔发育与产油速率之间的联系,能预测蒸汽腔向下扩展阶段任意时刻的蒸汽腔前缘向下移动速率、蒸汽腔前缘位置以及产油速率。本文绘制了不同模型参数影响下的日产油量曲线,并分析了曲线的敏感性。
In this paper,a new analytical model is proposed that predicts the oil production rate during the steam chamber downward expansion stage.The steam chamber was assumed to have a“rectangle+inverted triangle”geometry relative to a plane.The model considers the influence of variable steam injection rate on productivity and establishes the relationship between the steam chamber development and oil production rate.During the steam chamber downward expansion,the location of the steam chamber interface and the oil production rate at any time can be predicted by the proposed model.The daily oil production curves influenced by different model parameters were drawn.In addition,the curve sensitivities to different model parameters were thoroughly considered.
作者
王益民
Wang Yimin(Exploration and Development Research Institute of Jianghan Oilfield Company,Sinopec,Hubei,430223)
出处
《当代化工研究》
2022年第11期106-108,共3页
Modern Chemical Research
关键词
SAGD
向下扩展阶段
蒸汽腔
产能预测
SAGD
downward expansion stage
the steam chamber
production prediction
