底水潜山油藏出水规律研究

A STUDY ON WATER PRODUCING RULE OF BURIED HILL RESERVOIR WITH BOTTOM WATER

杜殿发 陈月明 汪庐山 张代森

Du Dianfa Chen Yueming Wang Lushan Zhang Daisen

石油大学石油工程系, 山东东营 257062 胜利石油管理局采油院, 山东东营 257000

建立了井组模型,研究了布井方式和井距对底水潜山油藏开发过程中油井产水的影响;分析了不同注水方式、采液强度、注水和调堵时间情况下油藏开发动态和出水规律;综合分析了单井和井组模型的生产特征,导出裂缝型潜山油藏含水率上升曲线的函数表达式,在统计的基础上,利用多元回归分别给出了单井和井组含水率上升曲线系数与影响因素的关系式,该式包括了地质及工艺参数,并将裂缝和基质的参数分开,计算结果将更为准确可靠,同时为双重介质油藏含水率预测及控水措施的选择实施提供了分析依据

A well group numerical simulation to naturally fractured buried hill reservoir was carried out for studying the influence of well pattern and space on water producing during development process. Through the sensitivity analyses of geologic and technology parameters as fracture permeability, occasion water injection and water plugging etc., the main water cut escalating property is concluded. According to the comprehensive result of single well and well group model, the function form of the relationship between water cut and recovery percent of reserves is found. The relational expressions between the coefficients and reservoir parameters are given using the method of multivariate regression. These expressions include geologic and technology parameters and separate the fracture and matrix. Thus its calculation result will be mo re accurate and reliable.

10.3969/j.issn.1000-7393.2000.06.013