Models of steam-assisted gravity drainage(SAGD) steam chamber expanding velocity in double horizontal wells and its application
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摘要
The development of steam chamber can be used to evaluate steam-assisted gravity drainage(SAGD) performance. The velocity of steam chamber expanding is the key parameter for evaluating the development of steam chamber. Based on SAGD technology theory and heat transfer theory, two calculation model methods, observation well temperature method and steam chamber edge method for estimating the horizontal expanding velocity of steam chamber, were presented. Through analyzing the monitoring data and numerical simulation results of a typical super heavy oil block developed by SAGD in Fengcheng oilfield in Xinjiang, NW China, the development patterns of steam chamber and temperature variation law in the observation well at different stages are determined. The observed temperature data was used to calculate steam chamber expanding velocity. The calculated chamber velocity at different time was applied to predict the temperature distribution of oil drainage zone at the edge of steam chamber and SAGD oil rate. The results indicate that temperature function of high temperature zone in the observation well temperature curve has a linear relationship with measuring depth.The characteristic section can be used to calculate key parameters such as the angle of the drainage interface, expanding edge and velocity of steam chamber. The field production data verify that the results of the two proposed methods of steam chamber growth are reliable and practical, which can provide theoretical support for the efficient development of SAGD.
The development of steam chamber can be used to evaluate steam-assisted gravity drainage(SAGD) performance. The velocity of steam chamber expanding is the key parameter for evaluating the development of steam chamber. Based on SAGD technology theory and heat transfer theory, two calculation model methods, observation well temperature method and steam chamber edge method for estimating the horizontal expanding velocity of steam chamber, were presented. Through analyzing the monitoring data and numerical simulation results of a typical super heavy oil block developed by SAGD in Fengcheng oilfield in Xinjiang, NW China, the development patterns of steam chamber and temperature variation law in the observation well at different stages are determined. The observed temperature data was used to calculate steam chamber expanding velocity. The calculated chamber velocity at different time was applied to predict the temperature distribution of oil drainage zone at the edge of steam chamber and SAGD oil rate. The results indicate that temperature function of high temperature zone in the observation well temperature curve has a linear relationship with measuring depth.The characteristic section can be used to calculate key parameters such as the angle of the drainage interface, expanding edge and velocity of steam chamber. The field production data verify that the results of the two proposed methods of steam chamber growth are reliable and practical, which can provide theoretical support for the efficient development of SAGD.
The development of steam chamber can be used to evaluate steam-assisted gravity drainage(SAGD) performance. The velocity of steam chamber expanding is the key parameter for evaluating the development of steam chamber. Based on SAGD technology theory and heat transfer theory, two calculation model methods, observation well temperature method and steam chamber edge method for estimating the horizontal expanding velocity of steam chamber, were presented. Through analyzing the monitoring data and numerical simulation results of a typical super heavy oil block developed by SAGD in Fengcheng oilfield in Xinjiang, NW China, the development patterns of steam chamber and temperature variation law in the observation well at different stages are determined. The observed temperature data was used to calculate steam chamber expanding velocity. The calculated chamber velocity at different time was applied to predict the temperature distribution of oil drainage zone at the edge of steam chamber and SAGD oil rate. The results indicate that temperature function of high temperature zone in the observation well temperature curve has a linear relationship with measuring depth.The characteristic section can be used to calculate key parameters such as the angle of the drainage interface, expanding edge and velocity of steam chamber. The field production data verify that the results of the two proposed methods of steam chamber growth are reliable and practical, which can provide theoretical support for the efficient development of SAGD.
引文
[1]ASHRAFI O,NAVARRI P,HUGHES R,et al.Heat recovery optimization in a steam-assisted gravity drainage(SAGD)plant.Energy,2016,111:981-990.
[2]BUTLER R M.A new approach to the modelling of steamassisted gravity drainage.Journal of Canadian Petroleum Technology,1985,24(3):42-51.
[3]WEI S,CHENG L,HUANG W,et al.Prediction for steam chamber development and production performance in SAGDprocess.Journal of Natural Gas Science&Engineering,2014,19(7):303-310.
[4]SI Na,AN Lei,DENG Hui,et al.Innovation progress and thinking of SAGD technology in heavy oil and oil sand.Oil Drilling&Production Technology,2016,38(1):98-104.
[5]SUN Xinge,HE Wanjun,HU Xiaobo,et al.Parameters optimization of different production stages by dual-horizontal well SAGD process for super-heavy oil reservoir.Xinjiang Petroleum Geology,2012,33(6):697-699.
[6]LIU Xiaoxiong,JIANG Youwei,WU Yongbin,et al.Amathematical model and the indicator prediction in constant temperature electric heating of dual-horizontal-well SAGDstart-up.Petroleum Exploration and Development,2018,45(5):839-846.
[7]LIANG Guangyue,LIU Shangqi,SHEN Pingping,et al.Anew optimization method for steam-liquid level intelligent control model in oil sands steam-assisted gravity drainage(SAGD)process.Petroleum Exploration and Development,2016,43(2):275-280.
[8]WU Yi,ZHANG Liping,LI Xiaoman,et al.Study of steam chamber growth and expansion in SAGD for ultra heavy oil.Special Oil and Gas Reservoirs,2007,14(6):40-43.
[9]LI Xiuluan,LIU Hao,LUO Jian,et al.3D physical simulation on dual horizontal well SAGD in heterogeneous reservoir.Acta Petrolei Sinca,2014,35(3):536-542.
[10]MA Desheng,GUO Jia,ZAN Cheng,et al.Physical simulation of improving the uniformity of steam chamber growth in the steam assisted gravity drainage.Petroleum Exploration and Development,2013,40(2):188-193.
[11]TIAN Jie,LIU Huiqing,PANG Zhanxi,et al.Experiment of3D physical simulation on dual-horizontal well SAGD under high pressure condition.Acta Petrolei Sinca,2017,38(4):453-460.
[12]LI Zhaomin,LU Teng,TAO Lei,et al.CO2 and viscosity breaker assisted steam huff and puff technology for horizontal wells in a super-heavy oil reservoir.Petroleum Exploration and Development,2011,38(5):600-605.
[13]HUANG Shijun,XIONG Hao,MA Kuiqian,et al.A mathematical model for productivity prediction of SAGD process considering non-uniform steam distribution.Journal of China University of Petroleum(Natural Science Edition),2017,41(4):107-115.
[14]YANG liqiang,CHEN yueming,WANG Hongyuan,et al.Physical and numerical simulation of steam assisted gravity with vertical and horizontal well combination in extra heavy oil reservoir.Journal of China University of Petroleum(Natural Science Edition),2007,31(4):64-69.
[15]MAZDAIRANI,MARYA C.Discussion on the effects of temperature on thermal properties in the steam-assisted-gravity-drainage(SAGD)process.Part 1:Thermal conductivity.SPE 170064-MS,2014.
[16]FAN Jie,LI Xiangfang.The research of heat transfer on the front of steam chamber for steam assisted gravity drainage.Science Technology and Engineering,2016,16(3):42-47.
[17]CHEN Xiong,JIA Yonglu,SANG Linxiang,et al.A new method of calculating velocity and scope of steam chamber for SAGD.Reservoir Evaluation and Development,2016,6(1):36-39.
[18]CHEN Yueming.Thermal recovery on steam injection.Dongying:China University of Petroleum Press,1996:21-22.
[2]BUTLER R M.A new approach to the modelling of steamassisted gravity drainage.Journal of Canadian Petroleum Technology,1985,24(3):42-51.
[3]WEI S,CHENG L,HUANG W,et al.Prediction for steam chamber development and production performance in SAGDprocess.Journal of Natural Gas Science&Engineering,2014,19(7):303-310.
[4]SI Na,AN Lei,DENG Hui,et al.Innovation progress and thinking of SAGD technology in heavy oil and oil sand.Oil Drilling&Production Technology,2016,38(1):98-104.
[5]SUN Xinge,HE Wanjun,HU Xiaobo,et al.Parameters optimization of different production stages by dual-horizontal well SAGD process for super-heavy oil reservoir.Xinjiang Petroleum Geology,2012,33(6):697-699.
[6]LIU Xiaoxiong,JIANG Youwei,WU Yongbin,et al.Amathematical model and the indicator prediction in constant temperature electric heating of dual-horizontal-well SAGDstart-up.Petroleum Exploration and Development,2018,45(5):839-846.
[7]LIANG Guangyue,LIU Shangqi,SHEN Pingping,et al.Anew optimization method for steam-liquid level intelligent control model in oil sands steam-assisted gravity drainage(SAGD)process.Petroleum Exploration and Development,2016,43(2):275-280.
[8]WU Yi,ZHANG Liping,LI Xiaoman,et al.Study of steam chamber growth and expansion in SAGD for ultra heavy oil.Special Oil and Gas Reservoirs,2007,14(6):40-43.
[9]LI Xiuluan,LIU Hao,LUO Jian,et al.3D physical simulation on dual horizontal well SAGD in heterogeneous reservoir.Acta Petrolei Sinca,2014,35(3):536-542.
[10]MA Desheng,GUO Jia,ZAN Cheng,et al.Physical simulation of improving the uniformity of steam chamber growth in the steam assisted gravity drainage.Petroleum Exploration and Development,2013,40(2):188-193.
[11]TIAN Jie,LIU Huiqing,PANG Zhanxi,et al.Experiment of3D physical simulation on dual-horizontal well SAGD under high pressure condition.Acta Petrolei Sinca,2017,38(4):453-460.
[12]LI Zhaomin,LU Teng,TAO Lei,et al.CO2 and viscosity breaker assisted steam huff and puff technology for horizontal wells in a super-heavy oil reservoir.Petroleum Exploration and Development,2011,38(5):600-605.
[13]HUANG Shijun,XIONG Hao,MA Kuiqian,et al.A mathematical model for productivity prediction of SAGD process considering non-uniform steam distribution.Journal of China University of Petroleum(Natural Science Edition),2017,41(4):107-115.
[14]YANG liqiang,CHEN yueming,WANG Hongyuan,et al.Physical and numerical simulation of steam assisted gravity with vertical and horizontal well combination in extra heavy oil reservoir.Journal of China University of Petroleum(Natural Science Edition),2007,31(4):64-69.
[15]MAZDAIRANI,MARYA C.Discussion on the effects of temperature on thermal properties in the steam-assisted-gravity-drainage(SAGD)process.Part 1:Thermal conductivity.SPE 170064-MS,2014.
[16]FAN Jie,LI Xiangfang.The research of heat transfer on the front of steam chamber for steam assisted gravity drainage.Science Technology and Engineering,2016,16(3):42-47.
[17]CHEN Xiong,JIA Yonglu,SANG Linxiang,et al.A new method of calculating velocity and scope of steam chamber for SAGD.Reservoir Evaluation and Development,2016,6(1):36-39.
[18]CHEN Yueming.Thermal recovery on steam injection.Dongying:China University of Petroleum Press,1996:21-22.
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