双水平井SAGD循环预热连通判断新解析模型
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摘要
注蒸汽循环预热对转SAGD生产阶段蒸汽腔的上升速度、SAGD上产速度、水平段蒸汽腔的发育程度与动用率、以及SAGD最终采收率等均有重要影响。而SAGD注采井水平段之间的储层温度是评判预热连通是否达到要求、以及合理转SAGD生产的关键参数。针对前人传热解析模型未分别考虑实际储层多孔介质中岩石、原油、地层水传热与热扩散性能等问题,建立了考虑油水岩石的多介质多相流体综合传热解析新模型,并以国内某油区典型SAGD井组为例,利用井下测温数据、油水岩石热物性参数等为数据,进行了SAGD注蒸汽循环预热阶段注采井水平段之间温度变化测算,并与数值模拟计算结果进行了对比,计算结果表明,提出的新型解析模型与数值模拟结果符合率达到了95%以上,可方便快捷对预热连通情况进行速判,对现场SAGD成功实施具有重要意义。
The effect of heat circulation by steam injection is of a great importance to the steam chamber growth rate,SAGD ramp-up rate,steam chamber dimension along horizontal section,tapping efficiency and ultimate recovery factor for SAGD production.While the temperature of the formation between horizontal sections of injector and producer in a SAGD wellpair is the crucial parameter to judge whether heat communication between injector and producer is enough or whether it is rational to convert from circulation to SAGD production phase.According to the problems that the previous analytical model only considers the thermal properties of the formation rock,the new analytical model of calculating heat communication including the effect of formation rock,oil and water is established.The field data of well configuration and thermal properties of formation rock,oil and water from a SAGD production area in China is taken as an example to calculate the temperature change and distribution during SAGD circulation phase and the results are compared with those from previous model and numerical history match.The calculation results show that the analytical results from the model proposed in this paper have quite good agreement(>95%) with the numerical simulation results,which justifies its feasibility and accuracy.The heat communication during SAGD circulation phase can be determined timely by using this model and it has a significance to guide the SAGD operation during production Dhase successfully.
The effect of heat circulation by steam injection is of a great importance to the steam chamber growth rate,SAGD ramp-up rate,steam chamber dimension along horizontal section,tapping efficiency and ultimate recovery factor for SAGD production.While the temperature of the formation between horizontal sections of injector and producer in a SAGD wellpair is the crucial parameter to judge whether heat communication between injector and producer is enough or whether it is rational to convert from circulation to SAGD production phase.According to the problems that the previous analytical model only considers the thermal properties of the formation rock,the new analytical model of calculating heat communication including the effect of formation rock,oil and water is established.The field data of well configuration and thermal properties of formation rock,oil and water from a SAGD production area in China is taken as an example to calculate the temperature change and distribution during SAGD circulation phase and the results are compared with those from previous model and numerical history match.The calculation results show that the analytical results from the model proposed in this paper have quite good agreement(>95%) with the numerical simulation results,which justifies its feasibility and accuracy.The heat communication during SAGD circulation phase can be determined timely by using this model and it has a significance to guide the SAGD operation during production Dhase successfully.
引文
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[8]张小波,郑学男,邰德军,等.SAGD添加非凝析气技术研究[J].西南石油大学学报(自然科学版),2010,32(2):113-117.ZHANG Xiaobo,ZHENG Xuenan,TAI Dejun,et al.The technical research on adding none condensate gas in SAGD[J].Journal of Southwest Petroleum University(Science&Technology Edition),2010,32(2):113-117.
[9]席长丰,马德胜,李秀峦.双水平井超稠油SAGD循环预热启动优化研究[J].西南石油大学学报(自然科学版),2010,32(4):103-108.XI Changfeng,MA Desheng,LI Xiuluan.Study on SAGD tecnology for ultra heavy oil in dual horizontal wells[J].Journal of Southwest Petroleum University(Science&Technology Edition),2010,32(4):103-108.
[10]肖娟.超稠油油藏双水平井SAGD循环预热优化设计研究[J].特种油气藏,2010,17(增):119-121.
[11]陈森,窦升军,游红娟,等.风城SAGD水平井均匀配汽工艺研究与应用[J].石油钻采工艺.2012,34(2):114-116.CHEN Sen,DOU Shengjun,YOU Hongjuan,et al.Research and application of uniform steam injection in SAGD horizontal wells of Feng city oilfield[J].Oil Drilling&Production Technology,2012,34(2):114-116.
[12]刘敏,高孝田,邹剑,等.海上特稠油热采SAGD技术方案设计[J].石油钻采工艺,2013,35(4):94-96.LIU Min,GAO Xiatian,ZOU Jian,et al.SAGD technology conceptual design of thermal recovery explore for offshore extra-heavy oil[J].Oil Drilling&Production Technology,2013,35(4):94-96.
[13]罗晓琴,杨振萍,陈昭栋.热线法测量材料的热扩散系数和热导率的研究[J].四川师范大学学报(自然科学版),2013 36(5):792-794.LUO Xiaoqin,YANG Zhenping,CHEN Zhaodong.Investigation on transient measurent of thermal conductivity and thermal diffusion by thermal line method[J].Journal of Sichuan Normal University(Natural Science),201336(5):792-794.
[14]陈森,窦升军,游红娟,等.双水平井SAGD循环预热技术及现场应用[J].新疆石油天然气,2012,8(增):6-10.CHEN Sen,DOU Shengjun,YOU Hongjuan,et al.Application of SAGD recycle preheating technology to bilateral horizontal well[J].Xinjiang Oil&Gas,2012,8(S):6-10.
[15]刘名,邓琴,杨文学,等.双水平井SAGD循环预热阶段调控及认识[J].新疆石油天然气,2011,7(3):38-41.
[16]马德胜,郭嘉,昝成,等.蒸汽辅助重力泄油改善汽腔发育均匀性物理模拟[J].石油勘探与开发,2013,40(2):188-193.MA Desheng,GUO Jia,ZAN Cheng,et al.Physical simulation of improving the uniformity of steam chamber growth in the steam assisted gravity drainage[J].Petroleum Exploration and Development,2013,40(2):188-193.
[17]霍进,桑林翔,杨果,等.蒸汽辅助重力泄油循环预热阶段优化控制技术[J].新疆石油地质,2013,34(4):455-457.HUO Jin,SANG Linxiang,YANG Guo,et al.Optimization and control techniques for circulating preheating stage by steam assisted gravity drainage(SNGD)process[J].Xinjiang Petroleum Geology,2013,34(4):455-457.
[2]NASR T N,LAW D H S,GOLBECK H,et al.Countercurrent aspect of the SAGD process[J].Journal of Canadian Petroleum Technology,2000,39(1):41-47.
[3]VINCENT K D,MACKINNON C J,PALMGREN C T S.Developing SAGD operating strategy using a coupled wellbore thermal reservoir simulator[C].SPE 86970,2004.
[4]PARMAR G,ZHAO L,GRAHAM J.Start-up of SAGD wells:history match,wellbore design and operation[J].Journal of Canadian Petroleum Technology,2009,48(1):42-48.
[5]MIURA K,WANG J.An analytical model to predict cumulative steam/oil ratio(CSOR)in thermal-recovery SAGD process[J].Journal of Canadian Petroleum Technology,2012,51(4):268-275.
[6]DUONG A N,TOMBERLIN T,CYROT M.A New analytical Model for Conduction heating during the SAGD Circulation Phase[C].SPE/PS/CHOA 117434,2008.
[7]纪佑军,程林松,刘志波,等.SAGD过程注氮气改善开发效果实验研究[J].西南石油大学学报(自然科学版),2010,32(2):108—112.
[8]张小波,郑学男,邰德军,等.SAGD添加非凝析气技术研究[J].西南石油大学学报(自然科学版),2010,32(2):113-117.ZHANG Xiaobo,ZHENG Xuenan,TAI Dejun,et al.The technical research on adding none condensate gas in SAGD[J].Journal of Southwest Petroleum University(Science&Technology Edition),2010,32(2):113-117.
[9]席长丰,马德胜,李秀峦.双水平井超稠油SAGD循环预热启动优化研究[J].西南石油大学学报(自然科学版),2010,32(4):103-108.XI Changfeng,MA Desheng,LI Xiuluan.Study on SAGD tecnology for ultra heavy oil in dual horizontal wells[J].Journal of Southwest Petroleum University(Science&Technology Edition),2010,32(4):103-108.
[10]肖娟.超稠油油藏双水平井SAGD循环预热优化设计研究[J].特种油气藏,2010,17(增):119-121.
[11]陈森,窦升军,游红娟,等.风城SAGD水平井均匀配汽工艺研究与应用[J].石油钻采工艺.2012,34(2):114-116.CHEN Sen,DOU Shengjun,YOU Hongjuan,et al.Research and application of uniform steam injection in SAGD horizontal wells of Feng city oilfield[J].Oil Drilling&Production Technology,2012,34(2):114-116.
[12]刘敏,高孝田,邹剑,等.海上特稠油热采SAGD技术方案设计[J].石油钻采工艺,2013,35(4):94-96.LIU Min,GAO Xiatian,ZOU Jian,et al.SAGD technology conceptual design of thermal recovery explore for offshore extra-heavy oil[J].Oil Drilling&Production Technology,2013,35(4):94-96.
[13]罗晓琴,杨振萍,陈昭栋.热线法测量材料的热扩散系数和热导率的研究[J].四川师范大学学报(自然科学版),2013 36(5):792-794.LUO Xiaoqin,YANG Zhenping,CHEN Zhaodong.Investigation on transient measurent of thermal conductivity and thermal diffusion by thermal line method[J].Journal of Sichuan Normal University(Natural Science),201336(5):792-794.
[14]陈森,窦升军,游红娟,等.双水平井SAGD循环预热技术及现场应用[J].新疆石油天然气,2012,8(增):6-10.CHEN Sen,DOU Shengjun,YOU Hongjuan,et al.Application of SAGD recycle preheating technology to bilateral horizontal well[J].Xinjiang Oil&Gas,2012,8(S):6-10.
[15]刘名,邓琴,杨文学,等.双水平井SAGD循环预热阶段调控及认识[J].新疆石油天然气,2011,7(3):38-41.
[16]马德胜,郭嘉,昝成,等.蒸汽辅助重力泄油改善汽腔发育均匀性物理模拟[J].石油勘探与开发,2013,40(2):188-193.MA Desheng,GUO Jia,ZAN Cheng,et al.Physical simulation of improving the uniformity of steam chamber growth in the steam assisted gravity drainage[J].Petroleum Exploration and Development,2013,40(2):188-193.
[17]霍进,桑林翔,杨果,等.蒸汽辅助重力泄油循环预热阶段优化控制技术[J].新疆石油地质,2013,34(4):455-457.HUO Jin,SANG Linxiang,YANG Guo,et al.Optimization and control techniques for circulating preheating stage by steam assisted gravity drainage(SNGD)process[J].Xinjiang Petroleum Geology,2013,34(4):455-457.
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