重32井区SAGD开发阶段生产参数优化
|
摘要
重32井区SAGD开发区为风城油田首个SAGD规模化推广区,目前各井组处于蒸汽腔上升阶段。为加速蒸汽腔扩展速度、提高油藏开发效果,需要对生产阶段进行生产参数优化。利用油藏数值模拟技术,通过确定生产阶段的目标函数及生产参数,对"两目标、三因素、三因子"进行敏感性分析,根据注采参数的影响结果进行生产参数优化。研究结果表明,生产阶段高压扩腔、增汽提液、均衡控液的调控思路可有效提高SAGD开发效果。该研究现场应用后,单井组日产油由16.4 t/d上升至21.6 t/d,油汽比由0.19上升至0.24,开发效果显著提升,为同类油藏提高SAGD开发效果提供了借鉴。
SAGD is firstly put into large- scale application in Wellblock Zhong32 of Fengcheng Oilfield and the steam chamber of each wellgroup remains rising. The production should be optimized to accelerate the expansion of steam chamber and improve reservoir development. Reservoir numerical simulation is used to determine the objective function and production parameters and a sensitivity analysis is carried out for"two- goal,three- element,and three- factor". The production is optimized according to the analysis of injection- production parameters. Result illustrates that SAGD development can be significantly improved by high- pressure chamber expanding,steam injection increasing and extracting and balance liquid control. The field SAGD development is greatly improved after field application. The single- wellgroup daily oil production is increased from 16. 4 t / d to 21. 6 t / d and the corresponding oil-steam ratio is increased from 0. 19 to 0. 24. This study could provide a reference to the SAGD development of similar reservoirs.
SAGD is firstly put into large- scale application in Wellblock Zhong32 of Fengcheng Oilfield and the steam chamber of each wellgroup remains rising. The production should be optimized to accelerate the expansion of steam chamber and improve reservoir development. Reservoir numerical simulation is used to determine the objective function and production parameters and a sensitivity analysis is carried out for"two- goal,three- element,and three- factor". The production is optimized according to the analysis of injection- production parameters. Result illustrates that SAGD development can be significantly improved by high- pressure chamber expanding,steam injection increasing and extracting and balance liquid control. The field SAGD development is greatly improved after field application. The single- wellgroup daily oil production is increased from 16. 4 t / d to 21. 6 t / d and the corresponding oil-steam ratio is increased from 0. 19 to 0. 24. This study could provide a reference to the SAGD development of similar reservoirs.
引文
[1]霍进,桑林翔,樊玉新,等.风城超稠油双水平井蒸汽辅助重力泄油开发试验[J].新疆石油地质,2012,33(5):570-573.
[2]杨进,严德,田瑞瑞,等.油砂蒸汽辅助重力泄油法开采技术[J].特种油气藏,2012,19(6):8-12.
[3]孙新革,何万军,胡筱波,等.超稠油双水平井蒸汽辅助重力泄油不同开采阶段参数优化[J].新疆石油地质,2012,33(6):697-699.
[4]霍进,桑林翔,杨果,等.双水平井蒸汽辅助重力泄油汽腔上升阶段的注采调控[J].新疆石油地质,2012,33(6):694-696.
[5]杨和雄.敏感性分析及其模糊方法[J].南京邮电学院学报,1998,18(1):99-101.
[6]魏绍蕾,程林松,魏耀,等.生产参数对馆陶油层SAGD生产的影响研究[J].科学技术与工程,2014,14(5):49-53.
[7]李艳玲.稠油油藏蒸汽驱地质影响因素研究[J].特种油气藏,2009,16(5):58-60.
[8]章光.参数敏感性分析与试验方案优化[J].岩土力学,1993,14(4):51-57.
[9]秦勇,樊竞泽,秦旭.稠油油藏蒸汽辅助重力泄油参数优化研究[J].广州化工,2011,39(7):80-82.
[10]崔红岩,李冬冬,林新宇,等.双水平井蒸汽辅助重力泄油数值模拟研究[J].长江大学学报,2011,8(6):47-50.
[11]鄢旭.SAGD开发影响因素研究[J].甘肃科技,2011,27(4):49-50.
[12]武毅,张丽萍,李晓漫,等.超稠油SAGD开发蒸汽腔形成及扩展规律研究[J].特种油气藏,2007,14(6):40-43.
[13]赵庆辉,刘其成,于涛,等.蒸汽辅助重力泄油蒸汽腔发育特征研究[J].西南石油大学学报(自然科学版),2008,30(4):123-126.
[2]杨进,严德,田瑞瑞,等.油砂蒸汽辅助重力泄油法开采技术[J].特种油气藏,2012,19(6):8-12.
[3]孙新革,何万军,胡筱波,等.超稠油双水平井蒸汽辅助重力泄油不同开采阶段参数优化[J].新疆石油地质,2012,33(6):697-699.
[4]霍进,桑林翔,杨果,等.双水平井蒸汽辅助重力泄油汽腔上升阶段的注采调控[J].新疆石油地质,2012,33(6):694-696.
[5]杨和雄.敏感性分析及其模糊方法[J].南京邮电学院学报,1998,18(1):99-101.
[6]魏绍蕾,程林松,魏耀,等.生产参数对馆陶油层SAGD生产的影响研究[J].科学技术与工程,2014,14(5):49-53.
[7]李艳玲.稠油油藏蒸汽驱地质影响因素研究[J].特种油气藏,2009,16(5):58-60.
[8]章光.参数敏感性分析与试验方案优化[J].岩土力学,1993,14(4):51-57.
[9]秦勇,樊竞泽,秦旭.稠油油藏蒸汽辅助重力泄油参数优化研究[J].广州化工,2011,39(7):80-82.
[10]崔红岩,李冬冬,林新宇,等.双水平井蒸汽辅助重力泄油数值模拟研究[J].长江大学学报,2011,8(6):47-50.
[11]鄢旭.SAGD开发影响因素研究[J].甘肃科技,2011,27(4):49-50.
[12]武毅,张丽萍,李晓漫,等.超稠油SAGD开发蒸汽腔形成及扩展规律研究[J].特种油气藏,2007,14(6):40-43.
[13]赵庆辉,刘其成,于涛,等.蒸汽辅助重力泄油蒸汽腔发育特征研究[J].西南石油大学学报(自然科学版),2008,30(4):123-126.