强天然水驱油藏开发机理实验研究
发布时间：2018-09-04 08:00
【摘要】：针对已有的水驱相似准则体系,引入敏感因子,利用数值模拟方法研究各相似参数的敏感性,确定相似参数的主要敏感因子介于10-1~101。结合油藏实际情况,设计了满足几何相似、运动相似和动力相似的重力占优和黏滞力占优物理模型及水驱油模拟实验,研究了不同驱动力占优条件下的油藏水驱开发特征及剩余油分布特征,为挖潜方向提供指导。模拟实验结果表明:黏滞力占优模型前期含水上升速度快,含水率曲线呈"厂"字形,指进现象较严重,但总体上波及程度较高,采出程度较高;重力占优模型前期含水上升较慢,注水后含水快速上升,顶部富集剩余油,后期开发潜力较大。
[Abstract]:According to the existing similarity criterion system of water drive, the sensitivity factor is introduced, and the sensitivity of the similar parameters is studied by numerical simulation method, and the main sensitive factors of the similar parameters are determined to be between 10 ~ (-1) and 101 ~ (-1). Combined with the actual situation of the reservoir, the physical model of gravity dominance and viscous force dominance and the simulation experiment of water drive oil are designed to satisfy the geometric similarity, motion similarity and dynamic similarity. The characteristics of reservoir water drive development and remaining oil distribution under different driving forces are studied in order to provide guidance for tapping potential. The simulation results show that the water content rises rapidly in the early stage of the model, the water content curve is "factory" shape, the fingering phenomenon is serious, but the sweep degree is higher and the extraction degree is higher; The water cut rises slowly in the early stage of gravity dominant model, increases rapidly after water injection, enriches the remaining oil at the top, and has great development potential in the later stage.
【作者单位】： 中国石油大学(北京)石油工程学院;中国石油勘探开发研究院;
【基金】：国家自然科学基金项目“复杂裂缝潜山油藏水平井堵水封堵机理研究”(51404280)
【分类号】：TE341
，
本文编号：2221482
[Abstract]:According to the existing similarity criterion system of water drive, the sensitivity factor is introduced, and the sensitivity of the similar parameters is studied by numerical simulation method, and the main sensitive factors of the similar parameters are determined to be between 10 ~ (-1) and 101 ~ (-1). Combined with the actual situation of the reservoir, the physical model of gravity dominance and viscous force dominance and the simulation experiment of water drive oil are designed to satisfy the geometric similarity, motion similarity and dynamic similarity. The characteristics of reservoir water drive development and remaining oil distribution under different driving forces are studied in order to provide guidance for tapping potential. The simulation results show that the water content rises rapidly in the early stage of the model, the water content curve is "factory" shape, the fingering phenomenon is serious, but the sweep degree is higher and the extraction degree is higher; The water cut rises slowly in the early stage of gravity dominant model, increases rapidly after water injection, enriches the remaining oil at the top, and has great development potential in the later stage.
【作者单位】： 中国石油大学(北京)石油工程学院;中国石油勘探开发研究院;
【基金】：国家自然科学基金项目“复杂裂缝潜山油藏水平井堵水封堵机理研究”(51404280)
【分类号】：TE341
，
本文编号：2221482
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