一种基于油水两相渗流理论的水驱图版的建立与应用
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摘要
水驱图版是一种重要的油藏工程方法,常用于分析水驱油藏的含水上升规律,评价水驱开发调整效果和预测采收率。目前国内应用比较广泛的童氏图版及其改进水驱图版初期含水率较高,预测采收率偏大,不能适应注水开发油藏特别是低渗透注水开发油藏开发全过程水驱开发效果评价的需要。本文基于油水两相渗流理论,利用相对渗透率资料,推导并提出了一种水驱规律预测模型。在此基础上,建立了一种新型水驱图版。研究和实例应用表明,新型水驱图版客观描述了注水开发油藏开采全过程的含水与采出程度变化规律,可靠性强,适用范围广,对水驱规律和采收率的预测更加客观、准确。
Water-drive plate is an important reservoir engineering method which is usually used to analyze the water cut rising rules of water-flooding reservoirs, evaluate the water-drive development adjustment effect and recovery factor.The initial water cut and ultimate recovery factor predicted by the existing Tong's plate used broadly in our country and other it's modified water-drive plate are generally higher, These water-drive plates have been unsuitable for development evaluation for the water-flooding reservoir in the whole course of oilfield development, especially for low permeability water-flooding reservoirs.In this paper, a new predicition model of water-flooding law and water-drive plate is established based on oil-water fluid flow theory and relative permeability data. Study and the field application shows that this new water-drive plate can describe the variation law of water cut with recovery degree for the water-flooding reservoirs in the whole development course, it has high reliability and widely application scope, and predicted water-flooding law and recovery factor is more objective and accurate.
Water-drive plate is an important reservoir engineering method which is usually used to analyze the water cut rising rules of water-flooding reservoirs, evaluate the water-drive development adjustment effect and recovery factor.The initial water cut and ultimate recovery factor predicted by the existing Tong's plate used broadly in our country and other it's modified water-drive plate are generally higher, These water-drive plates have been unsuitable for development evaluation for the water-flooding reservoir in the whole course of oilfield development, especially for low permeability water-flooding reservoirs.In this paper, a new predicition model of water-flooding law and water-drive plate is established based on oil-water fluid flow theory and relative permeability data. Study and the field application shows that this new water-drive plate can describe the variation law of water cut with recovery degree for the water-flooding reservoirs in the whole development course, it has high reliability and widely application scope, and predicted water-flooding law and recovery factor is more objective and accurate.
引文
[1]童宪章.油井产状和油藏动态分析[M].北京:石油工业出版社,1981.
[2]童宪章.天然水驱和人工注水油藏的统计规律探讨[J].石油勘探与开发,1978,5(6):38-45.
[3]曹军,王萍,王思仪,等.童氏图版在长庆低渗透油藏中的改进和应用[J].低渗透油气田,2013,18(1):76-79.
[4]尹大庆,林东维,朱文波,等.水驱砂岩油藏修正童氏图版含水率预测方法[J].大庆石油地质与开发,2014,33(2):54-57.
[5]陈元千,郭二鹏.广义童氏图版的建立与应用[J].新疆石油地质,2014,35(2):187-190.
[6]郝恩杰,蒋明,熊铁,等.童氏图版的改进及应用[J].新疆石油地质,2003,24(3):232-233.
[7]郑可,徐怀民,陈建文.关于童氏乙型水驱特征经验公式的探讨[J].中国石油大学学报(自然科学版),2013,37(1):99-103.
[8]王柏力.童氏含水与采出程度关系图版的改进与应用[J].大庆石油地质与开发,2006,25(4):62-64.
[9]凡哲元,任玉林,姜瑞忠.对童氏“7.5B”计算及乙型水驱法的改进[J],西南石油学院学报,2006,28(3):17-19.
[10]林志芳,俞启泰,赵明.水驱特征曲线应用中的问题研究[J].石油勘探与开发,1986(5):37-44.
[11]赵永胜,张四平,黄伏生.校正水驱曲线方法的改进及实例[J].石油勘探与开发,1993,20(3):49-53.
[12]Craft.B C and Hawkins.M F.Applied Petroleum Reservoir Engineering(Chapter7)[M],Prentice Hall,New Jersey,1991:355.
[13]Buckley S E,Leverett M C.Mechanism of Fluid Displacement in Sands[J].Trans AIME,1942,146(1):107-116.
[14]Welge H J.A Simplified Method for Computing oil Recovery by Gas or Water Drive[J].Joumal of Petroleum Technology,1952,4(4):91-98.
[15]Craig F F Jr.The Reservoir Engineering Aspects of Waterflooding[M].New York:Society of Petroleum Engineers of AIME,1971:112-114.
[16]陈元千.油气藏工程计算方法[M].北京:石油工业出版,2005:358-359.
[17]SY/T 5367-2010,石油可采储量计算方法[S].
[2]童宪章.天然水驱和人工注水油藏的统计规律探讨[J].石油勘探与开发,1978,5(6):38-45.
[3]曹军,王萍,王思仪,等.童氏图版在长庆低渗透油藏中的改进和应用[J].低渗透油气田,2013,18(1):76-79.
[4]尹大庆,林东维,朱文波,等.水驱砂岩油藏修正童氏图版含水率预测方法[J].大庆石油地质与开发,2014,33(2):54-57.
[5]陈元千,郭二鹏.广义童氏图版的建立与应用[J].新疆石油地质,2014,35(2):187-190.
[6]郝恩杰,蒋明,熊铁,等.童氏图版的改进及应用[J].新疆石油地质,2003,24(3):232-233.
[7]郑可,徐怀民,陈建文.关于童氏乙型水驱特征经验公式的探讨[J].中国石油大学学报(自然科学版),2013,37(1):99-103.
[8]王柏力.童氏含水与采出程度关系图版的改进与应用[J].大庆石油地质与开发,2006,25(4):62-64.
[9]凡哲元,任玉林,姜瑞忠.对童氏“7.5B”计算及乙型水驱法的改进[J],西南石油学院学报,2006,28(3):17-19.
[10]林志芳,俞启泰,赵明.水驱特征曲线应用中的问题研究[J].石油勘探与开发,1986(5):37-44.
[11]赵永胜,张四平,黄伏生.校正水驱曲线方法的改进及实例[J].石油勘探与开发,1993,20(3):49-53.
[12]Craft.B C and Hawkins.M F.Applied Petroleum Reservoir Engineering(Chapter7)[M],Prentice Hall,New Jersey,1991:355.
[13]Buckley S E,Leverett M C.Mechanism of Fluid Displacement in Sands[J].Trans AIME,1942,146(1):107-116.
[14]Welge H J.A Simplified Method for Computing oil Recovery by Gas or Water Drive[J].Joumal of Petroleum Technology,1952,4(4):91-98.
[15]Craig F F Jr.The Reservoir Engineering Aspects of Waterflooding[M].New York:Society of Petroleum Engineers of AIME,1971:112-114.
[16]陈元千.油气藏工程计算方法[M].北京:石油工业出版,2005:358-359.
[17]SY/T 5367-2010,石油可采储量计算方法[S].