一种预测水驱体积波及系数的新方法
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摘要
为了准确、简便地预测水驱体积波及系数,在前人的研究基础上,对翁氏模型进行无因次处理,得到无因次典型曲线模板,并结合俞启泰水驱曲线,推导出了水驱体积波及系数与含水率和开发时间的关系式,当含水率为极限含水率时,可得到最终水驱体积波及系数。通过实例表明,在开发时间为9a之前,体积波及系数的增加较快;当开发时间大于9a时,体积波及系数增加较慢,趋于稳定。该方法可用于油田开发动态预测,对实际生产有一定的指导意义。
In order to accurately and simply predict volumetric sweep efficiency, based on the previous studies,dimensionless typical curve can be obtained by dimensionless Weng model.A new relationship between volumetric sweep efficiency and water cut is proposed and analyzed in combination with Yu's water-drive curve. Ultimate volumetric sweep efficiency can be obtained while water cut is limit water cut.According to the example, volumetric sweep efficiency is increasing quickly while development time less than nine years. Conversely, volumetric sweep efficiency is increasing slowly while development time more than nine years. This method can be used for predicting oilfield development dynamic, which provides significant guide for oilfield production.
In order to accurately and simply predict volumetric sweep efficiency, based on the previous studies,dimensionless typical curve can be obtained by dimensionless Weng model.A new relationship between volumetric sweep efficiency and water cut is proposed and analyzed in combination with Yu's water-drive curve. Ultimate volumetric sweep efficiency can be obtained while water cut is limit water cut.According to the example, volumetric sweep efficiency is increasing quickly while development time less than nine years. Conversely, volumetric sweep efficiency is increasing slowly while development time more than nine years. This method can be used for predicting oilfield development dynamic, which provides significant guide for oilfield production.
引文
[1]陈民锋,吕迎红,杨清荣.利用相对渗透率资料研究油藏水驱状况[J].断块油气田,1998,5(5):26-29.
[2]杜利,陈清华,戴胜群.应用油水相对渗透率曲线和动态数据确定水驱波及状况[J].油气地质与采收率,2003,10(4):45-45.
[3]谷建伟,秦国鲲,张永军.利用数值模拟结果计算油藏水驱波及指标[J].河南石油,2004,18(4):35-36.
[4]朱九成,郎兆新,张丽华.多尺度油藏数值模拟的渗滤方法[J].石油学报,1998,19(2):38-43.
[5]李金宜,戴卫华,罗宪波,等.海上油田波及系数修正新方法[J].中国海上油气,2012,24(S1):86-89.
[6]张利红,李涛,蔡蓉,等.注水油田驱油效率和波及系数研究[J].内蒙古石油化工,2004,14(1):135-136.
[7]陈元千.水驱体积波及系数变化关系的研究[J].油气地质与采收率,2001,8(6):49-51.
[8]陈元千,郭二鹏.预测水驱油田体积波及系数和可采储量的方法[J].中国海上油气,2007,19(6):387-389.
[9]胡罡.预测水驱油田体积波及系数方法的改进与应用[J].新疆石油地质,2012,33(4):467-469.
[10]唐林,郭肖,邓钦月,等.一种预测水驱油田体积波及系数的新方法[J].新疆石油地质,2013,34(5):557-559.
[11]陈元千.对翁氏模型的推导及应用[J].天然气工业,1996,16(2):22-26.
[12]俞启泰.一种广义水驱特征曲线[J].石油勘探与开发,1998,25(5):48-50.
[2]杜利,陈清华,戴胜群.应用油水相对渗透率曲线和动态数据确定水驱波及状况[J].油气地质与采收率,2003,10(4):45-45.
[3]谷建伟,秦国鲲,张永军.利用数值模拟结果计算油藏水驱波及指标[J].河南石油,2004,18(4):35-36.
[4]朱九成,郎兆新,张丽华.多尺度油藏数值模拟的渗滤方法[J].石油学报,1998,19(2):38-43.
[5]李金宜,戴卫华,罗宪波,等.海上油田波及系数修正新方法[J].中国海上油气,2012,24(S1):86-89.
[6]张利红,李涛,蔡蓉,等.注水油田驱油效率和波及系数研究[J].内蒙古石油化工,2004,14(1):135-136.
[7]陈元千.水驱体积波及系数变化关系的研究[J].油气地质与采收率,2001,8(6):49-51.
[8]陈元千,郭二鹏.预测水驱油田体积波及系数和可采储量的方法[J].中国海上油气,2007,19(6):387-389.
[9]胡罡.预测水驱油田体积波及系数方法的改进与应用[J].新疆石油地质,2012,33(4):467-469.
[10]唐林,郭肖,邓钦月,等.一种预测水驱油田体积波及系数的新方法[J].新疆石油地质,2013,34(5):557-559.
[11]陈元千.对翁氏模型的推导及应用[J].天然气工业,1996,16(2):22-26.
[12]俞启泰.一种广义水驱特征曲线[J].石油勘探与开发,1998,25(5):48-50.