海上注水开发油田单井经济极限含水率分析
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摘要
经济极限含水率对注水开发油田具有重要的经济意义,目前行业标准笼统选取98%的含水率作为单井经济极限含水率,没有考虑经济因素,显然有失合理性。为合理确定不同经济条件下的单井经济极限含水率,评估单井生产是否具有经济效益,基于油价、油田实际产出、成本、税金等经济参数,运用投入产出平衡理论,首次推导出海上注水开发油田单井经济极限含水率计算模型。以渤海Q油田为例,计算了不同油价、不同采油速度下单井经济极限含水率,并绘制相应图版,评价了油井生产是否具有经济效益。结果表明:成本一定时,油价和采油速度对经济极限含水率影响较大,经济极限含水率随油价的升高而增大,随采油速度的增大而增大。对具有高采油速度的海上注水开发油田而言,高油价($100/bbl,1 bbl=0.159 m~3)下的经济极限含水率高达99.11%,远高于目前行业标准规定的98%的经济极限含水率数值,延长了油井高含水期效益生产的寿命,大幅度提高了单井经济效益,对海上注水开发油田单井生产策略具有重要的指导意义。
Economic limit water cut has important economic significance for the development of oilfields with water injection. The industry standard selected 98% as the economic limit water cut of single well,without considering economic factors,which is obviously unreasonable. In order to reasonably determine the economic limit water cut of single well under different economic conditions and evaluate whether the production of single well has economic benefits,guided by the principle of input-output balance,a calculation model of economic limit water cut of single well in offshore waterflooding oilfield was derived for the first time based on the economic parameters such as oil price,actual output,cost and tax. Taking Bohai Q oilfield as an example,the economic limit water cut of single well was calculated under different oil prices and oil production rates,and the corresponding chart was drawn to evaluate whether the production of oil wells has economic benefits. The results show that when the cost is fixed,oil price and oil recovery rate have a great influence on the economic limit water cut,and the economic limit water cut increases with the increase of oil price and oil recovery rate. For offshore waterflooding oilfields with high oil recovery rate,the economic limit water cut is as high as 99.11% at high oil price($100/bbl,1 bbl=0.159 m~3),which is much higher than 98% of the economic limit water cut value stipulated by the current industry standard. It prolongs the benefit production of oil wells in high water cut period,greatly improves the economic benefit of single well,and has important guiding significance for the production strategy of offshore waterflooding oilfields.
Economic limit water cut has important economic significance for the development of oilfields with water injection. The industry standard selected 98% as the economic limit water cut of single well,without considering economic factors,which is obviously unreasonable. In order to reasonably determine the economic limit water cut of single well under different economic conditions and evaluate whether the production of single well has economic benefits,guided by the principle of input-output balance,a calculation model of economic limit water cut of single well in offshore waterflooding oilfield was derived for the first time based on the economic parameters such as oil price,actual output,cost and tax. Taking Bohai Q oilfield as an example,the economic limit water cut of single well was calculated under different oil prices and oil production rates,and the corresponding chart was drawn to evaluate whether the production of oil wells has economic benefits. The results show that when the cost is fixed,oil price and oil recovery rate have a great influence on the economic limit water cut,and the economic limit water cut increases with the increase of oil price and oil recovery rate. For offshore waterflooding oilfields with high oil recovery rate,the economic limit water cut is as high as 99.11% at high oil price($100/bbl,1 bbl=0.159 m~3),which is much higher than 98% of the economic limit water cut value stipulated by the current industry standard. It prolongs the benefit production of oil wells in high water cut period,greatly improves the economic benefit of single well,and has important guiding significance for the production strategy of offshore waterflooding oilfields.
引文
[1]徐赢,潘有军,周荣萍,等.油田注水开发期含水率随时间变化规律研究.岩性油气藏,2016,28(4):127-132.XU Y,PAN Y J,ZHOU R P,et al.Water cut change law with time in waterflooding oilfield.Lithologic Reservoirs,2016,28(4):127-132.
[2]陈国飞,唐海,唐聪,等.预测水驱油田含水率的Von Bertalanffy模型.岩性油气藏,2016,28(1):135-138.CHEN G F,TANG H,TANG C,et al.Von Bertalanffy model for water cut prediction in water flood field.Lithologic Reservoirs,2016,28(1):135-138.
[3]陈元千.用水驱曲线确定经济极限含水率的方法及其应用.新疆石油地质,2010,31(2):158-162.CHEN Y Q.Approach and application of determining economic limit water-cut using water drive curve methods.Xinjiang Petroleum Geology,2010,31(2):158-162.
[4]关恒.基于液油比的特高含水期水驱开发指标预测方法.岩性油气藏,2013,25(5):100-103.GUAN H.Forecasting method of development index based on liquid/oil ratio in extra-high water cut stage.Lithologic Reservoirs,2013,25(5):100-103.
[5]李传亮,朱苏阳.关于油藏含水上升规律的若干问题.岩性油气藏,2016,28(3):1-5.LI C L,ZHU S Y.Some topics about water cut rising rule in reservoirs.Lithologic Reservoirs,2016,28(3):1-5.
[6]李红斌.油田开发单井经济边界分析模型及其应用.成都:西南石油大学,2011.LI H B.Analysis model and application of single well economic boundary in oilfield development.Chengdu:Southwest Petroleum University,2011.
[7]郭分乔.砂岩油田经济极限含水率的预测方法.大庆石油学院学报,2010,34(3):77-79.GUO F Q.Prediction method for economic limit of water cut of sandstone reservoir.Journal of Daqing Petroleum Institute,2010,34(3):77-79.
[8]黄小亮,唐海,王中伍,等.油藏极限含水率确定新方法.新疆石油地质,2008,29(5):629-630.HUANG X L,TANG H,WANG Z W,et al.A new method for ultimate water cut determination.Xinjiang Petroleum Geology,2008,29(5):629-630.
[9]黄耀琴,张树林.用盈亏平衡点法建立单井采油极限含水率模型.地质科技情报,2001,20(1):49-51.HUANG Y Q,ZHANG S L.Limit water cut model of single well oil extraction based on break even point method.Geological Science and Technology Information,2001,20(1):49-51.
[10]陈元千,唐玮.油气田剩余可采储量、剩余可采储采比和剩余可采程度的年度评价方法.石油学报,2016,37(6):796-801.CHEN Y Q,TANG W.Annual evaluation methods for remaining recoverable reserves,remaining recoverable reserves-production ratio and remaining recoverable degree of oil and gas fields.Acta Petrolei Sinica,2016,37(6):796-801.
[11]齐梅,侯建锋,蒋漫旗,等.可采储量标定的合理确定性探讨.油气地质与采收率,2007,14(6):62-65.QI M,HOU J F,JIANG M Q,et al.Research on reasonable certainty in calibration of the recoverable reserves.Petroleum Geology and Recovery Efficiency,2007,14(6):62-65.
[12]刘斌,杨丽,郭福军,等.油田经济产量计算方法探讨.国际石油经济,2000,8(6):30-32.LIU B,YANG L,GUO F J,et al.Study on economic output calculation method of oil field.International Petroleum Economics,2000,8(6):30-32.
[13]陈武,钟永清,张元泽,等.原油经济产量分析方法研究.钻采工艺,2004,27(4):31-33.CHEN W,ZHONG Y Q,ZHANG Y Z,et al.The analytical approach of the economic yield of crude oil.Drilling&Production Technology,2004,27(4):31-33.
[14]李道品,罗迪强.油井经济极限含水率的计算.断块油气田,1998,5(3):34-38.LI D P,LUO D Q.The calculation of economical limiting water content about oil well.Fault-Block Oil&Gas Field,1998,5(3):34-38.
[15]刘朝全,李光耀,杨茂娟.我国海上油田操作费的测算方法探讨.西安石油学院学报(自然科学版),1994,9(2):63-67.LIU C Q,LI G Y,YANG M J.A discussion on forecasting the operation cost in China offshore oilfields.Journal of Xi'an Shiyou Institute(Natural Science Edition),1994,9(2):63-67.
[16]李红斌,郑金印.加密新井经济产量分析模型及应用.当代化工,2011,40(4):423-426.LI H B,ZHENG J Y.Analysis model of economic production of infilling new oil well and its application.Contemporary Chemical Industry,2011,40(4):423-426.
[17]吴立岩.中国石油税费管理模式研究.北京:中国石油大学,2008.WU L Y.Research on management pattern for Chinese petroleum tax and fee.Beijing:China University of Petroleum,2008.
[18]张运来,廖新武,胡勇,等.海上稠油油田高含水期开发模式研究.岩性油气藏,2018,30(4):120-126.ZHANG Y L,LIAO X W,HU Y,et al.Development models for offshore heavy oil field in high water cut stage.Lithologic Reservoirs,2018,30(4):120-126.
[2]陈国飞,唐海,唐聪,等.预测水驱油田含水率的Von Bertalanffy模型.岩性油气藏,2016,28(1):135-138.CHEN G F,TANG H,TANG C,et al.Von Bertalanffy model for water cut prediction in water flood field.Lithologic Reservoirs,2016,28(1):135-138.
[3]陈元千.用水驱曲线确定经济极限含水率的方法及其应用.新疆石油地质,2010,31(2):158-162.CHEN Y Q.Approach and application of determining economic limit water-cut using water drive curve methods.Xinjiang Petroleum Geology,2010,31(2):158-162.
[4]关恒.基于液油比的特高含水期水驱开发指标预测方法.岩性油气藏,2013,25(5):100-103.GUAN H.Forecasting method of development index based on liquid/oil ratio in extra-high water cut stage.Lithologic Reservoirs,2013,25(5):100-103.
[5]李传亮,朱苏阳.关于油藏含水上升规律的若干问题.岩性油气藏,2016,28(3):1-5.LI C L,ZHU S Y.Some topics about water cut rising rule in reservoirs.Lithologic Reservoirs,2016,28(3):1-5.
[6]李红斌.油田开发单井经济边界分析模型及其应用.成都:西南石油大学,2011.LI H B.Analysis model and application of single well economic boundary in oilfield development.Chengdu:Southwest Petroleum University,2011.
[7]郭分乔.砂岩油田经济极限含水率的预测方法.大庆石油学院学报,2010,34(3):77-79.GUO F Q.Prediction method for economic limit of water cut of sandstone reservoir.Journal of Daqing Petroleum Institute,2010,34(3):77-79.
[8]黄小亮,唐海,王中伍,等.油藏极限含水率确定新方法.新疆石油地质,2008,29(5):629-630.HUANG X L,TANG H,WANG Z W,et al.A new method for ultimate water cut determination.Xinjiang Petroleum Geology,2008,29(5):629-630.
[9]黄耀琴,张树林.用盈亏平衡点法建立单井采油极限含水率模型.地质科技情报,2001,20(1):49-51.HUANG Y Q,ZHANG S L.Limit water cut model of single well oil extraction based on break even point method.Geological Science and Technology Information,2001,20(1):49-51.
[10]陈元千,唐玮.油气田剩余可采储量、剩余可采储采比和剩余可采程度的年度评价方法.石油学报,2016,37(6):796-801.CHEN Y Q,TANG W.Annual evaluation methods for remaining recoverable reserves,remaining recoverable reserves-production ratio and remaining recoverable degree of oil and gas fields.Acta Petrolei Sinica,2016,37(6):796-801.
[11]齐梅,侯建锋,蒋漫旗,等.可采储量标定的合理确定性探讨.油气地质与采收率,2007,14(6):62-65.QI M,HOU J F,JIANG M Q,et al.Research on reasonable certainty in calibration of the recoverable reserves.Petroleum Geology and Recovery Efficiency,2007,14(6):62-65.
[12]刘斌,杨丽,郭福军,等.油田经济产量计算方法探讨.国际石油经济,2000,8(6):30-32.LIU B,YANG L,GUO F J,et al.Study on economic output calculation method of oil field.International Petroleum Economics,2000,8(6):30-32.
[13]陈武,钟永清,张元泽,等.原油经济产量分析方法研究.钻采工艺,2004,27(4):31-33.CHEN W,ZHONG Y Q,ZHANG Y Z,et al.The analytical approach of the economic yield of crude oil.Drilling&Production Technology,2004,27(4):31-33.
[14]李道品,罗迪强.油井经济极限含水率的计算.断块油气田,1998,5(3):34-38.LI D P,LUO D Q.The calculation of economical limiting water content about oil well.Fault-Block Oil&Gas Field,1998,5(3):34-38.
[15]刘朝全,李光耀,杨茂娟.我国海上油田操作费的测算方法探讨.西安石油学院学报(自然科学版),1994,9(2):63-67.LIU C Q,LI G Y,YANG M J.A discussion on forecasting the operation cost in China offshore oilfields.Journal of Xi'an Shiyou Institute(Natural Science Edition),1994,9(2):63-67.
[16]李红斌,郑金印.加密新井经济产量分析模型及应用.当代化工,2011,40(4):423-426.LI H B,ZHENG J Y.Analysis model of economic production of infilling new oil well and its application.Contemporary Chemical Industry,2011,40(4):423-426.
[17]吴立岩.中国石油税费管理模式研究.北京:中国石油大学,2008.WU L Y.Research on management pattern for Chinese petroleum tax and fee.Beijing:China University of Petroleum,2008.
[18]张运来,廖新武,胡勇,等.海上稠油油田高含水期开发模式研究.岩性油气藏,2018,30(4):120-126.ZHANG Y L,LIAO X W,HU Y,et al.Development models for offshore heavy oil field in high water cut stage.Lithologic Reservoirs,2018,30(4):120-126.
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