董平川,江同文,唐明龙,谢伟
DONG Ping-chuan1,JIANG Tong-wen2,TANG Ming-long2,XIE Wei2(1.MOE Key Laboratory of Petroleum Engineering of China University of Petroleum

• 1:中国石油大学石油工程教育部重点实验室
• 2:塔里木油田公司勘探开发研究院
• 3:塔里木油田公司勘探开发研究院
• 4:塔里木油田公司勘探开发研究院 北京102249

摘要(Abstract)：

凝析气藏作为一种特殊的油气藏类型,由于特殊的流体相态特征决定了其开发难度要比一般油气藏复杂得多,开发中不仅要考虑天然气的采出程度,而且还要兼顾凝析油的采出程度。牙哈5气藏为富含凝析油气藏,通过组分数值模拟对不同的开采方式进行对比,得出采用衰竭、注水和注气3种开采方式的开发效果。注水和注气是为了保持地层压力,防止凝析油在地层内大量析出,从而提高凝析油的采收率。对比研究表明,注水和注气开采牙哈5凝析气田要优于衰竭式开采。对注水和注气两种开采方式而言,由于牙哈5气田储层自身的特点,在提高凝析油采出程度方面注气开采方式又要优于注水开采方式。预测结果表明,采用大井距注气开发方式对于延缓气窜可以起到一定作用,从而有利于提高注气效率,增加凝析油采出程度。
As a special type,condensate gas reservoir is more difficult to develop than common reservoirs because of its special fluid phase state characteristics.Not only recovery degree of gas but also recovery degree of condensate oil should be considered.Yaha 5 is a small rich gas-condensate reservoir in Tarim.Through compositional simulation,this paper compares the application of depletion,waterflooding and gas injection to this reservoir.Water and gas injection is used to maintain reservoir pressure above dew point pressure and prevent condensate dropout in the reservoir.Simulation shows that water and gas injection is more effective than depletion.Reservoir characteristics determine that gas injection is more effective that water injection in producing Yaha 5 reservoir.Prediction shows that large well spacing gas injection can retard gas channeling,resulting in increasing gas injection efficiency and recovery degree of condensate oil.

关键词(KeyWords)： 牙哈5凝析气藏;注水;注气;开发方式;数值模拟
Yaha 5 condensate gas reservoir;waterflooding;gas injection;development pattern;numerical simulation

Abstract:

Keywords:

基金项目(Foundation): 国家自然基金项目(50574059和50004002);; 国家“十五”科技攻关项目(2004BA616A02-03-01-02)

作者(Author): 董平川,江同文,唐明龙,谢伟
DONG Ping-chuan1,JIANG Tong-wen2,TANG Ming-long2,XIE Wei2(1.MOE Key Laboratory of Petroleum Engineering of China University of Petroleum

参考文献(References)：

• [1]杨宝善.凝析气藏开发工程[M].北京:石油工业出版,1995.Yang Bao-shan.The development engineering of gas condensate reser-voirs[M].Beijing:Petroleum Industry Press,1995.
• [2]马世煜.凝析气藏开发技术[M].北京:石油工业出版社,1996.Ma Shi-yu.The development technique of gas condensate reservoirs[M].Beijing:Petroleum Industry Press,1996.
• [3]孙龙德,宋文杰,江同文.塔里木盆地凝析气田开发[M].北京:石油工业出版社,2003.Sun Long-de,Song Wen-jie,Jiang Tong-wen.The development of gascondensate reservoirs in Tarimbasin[M].Beijing:PetroleumIndus-try Press,2003.
• [4]胡永乐,李保柱.凝析气藏开采方式的选择[J].天然气地球科学,2003,14(5):398-401.Hu Yong-le,LI Bao-zhu.Choice of development methods of gas con-densate reservoirs[J].Nature Gas Geoscience,2003,14(5):398-401.
• [5]尹显林,焦文东.牙哈凝析气藏水平井优化设计及开发跟踪研究[J].天然气勘探与开发,2004,27(3):31-34.Yin Xian-lin,Jiao Wen-dong.Horizontal well optimization design&de-velopment search of yaha gas condensate reservoir[J].Natural GasExploration&Development,2004,27(3):31-34.
• [6]陈文龙,吴迪.水平井在凝析气田开发中的应用及效果评价[J].天然气地球科学,2004,15(3):290-293.Chen Wen-long,Wu Di.The application and effectiveness evaluationof the horizontal wells in the development of gas condensate reservoir[J].Nature Gas Geoscience,2004,15(3):290-293.
• [7]Ahmed H.Investigation of Waterflooding and Gas Cycling for Develo-ping a Gas-Condensate Reservoir[C].SPE 59772,2000.
• [8]刘华,钟宝武,李秀娟.考虑凝析气藏相变作用的数学模型[J].大庆石油地质与开发,2005,24(2):46-49.LIU Hua,ZHONG Bao-wu,LI Xiu-juan.Mathematical model con-cerning facies change action in condensate gas reservoir[J].Petrole-um Geology&Oilfield Development in Daqing,2005,24(2):46-49.
• [9]陈安乐,李笑萍.多层凝析气藏渗流模型及其在试井分析中的应用[J].大庆石油地质与开发,2005,24(3):51-54.CHEN An-Le,LI Xiao-ping.Flow model of multi-layer condensategasreserviors and its application in well test analysis[J].PetroleumGeology&Oilfield Development in Daqing,2005,24(3):51-54.
• [10]李笑萍,赵子刚.双重介质地层的凝析气井定流压分析模型及应用[J].大庆石油地质与开发,2005,24(6):45-47.LI Xiao-ping,ZHAO Zi-gang.Analysis model and Apptication of con-stant Flow Pressare in Condensate Gas well in Dual Media Formation[J].Petroleum Geology&Oilfield Development in Daqing,2005,24(6):45-47.
• [11]朱炬辉,胡永全,赵金洲.相态变化影响下的凝析气井井筒压力变化计算分析[J].大庆石油地质与开发,2006,25(6):50-52.ZHU Ju-hui,HU Yong-quan,ZHAO Jin-zhou.Calculation onchange in borehole pressure of gas condensate well at the condition ofphase chang[J].Petroleum Geology&Oilfield Development inDaqing,2006,25(6):50-52.
• [12]朱炬辉,胡永全,赵金洲.凝析气井凝析液析出的动态行为[J].大庆石油地质与开发,2004,23(4):22-23.ZHU Ju-hui,HU Yong-quan,ZHAO Jin-zhou.Dynamic behavior ofcondensed liquid precipitation in condensed gas well[J].PetroleumGeology&Oilfield Development in Daqing,2004,23(4):22-23.
• [13]陈安乐,李笑萍,赵子刚.凝析气井的动态参数分析方法[J].大庆石油地质与开发,2004,23(4):33-35.CHEN An-Le,LI Xiao-ping,ZHAO Zi-gang.Dynamic parameters a-nalysis for gas condensate wells[J].Petroleum Geology&OilfieldDevelopment in Daqing,2004,23(6):33-35.
• [14]吴晓东,吕彦平,马焕英.多孔介质对凝析气露点压力影响研究[J].大庆石油地质与开发,2007,26(2):67-70.WU Xiao-dong,LV Yan-ping,MA Huan-ying.Study on effect ofporous media on dewpoint pressure of condensate gas[J].PetroleumGeology&Oilfield Development in Daqing,2007,26(2):67-70.
• [15]祝桂年,蒋永平.关于油藏中反常凝析现象解释的质疑[J].大庆石油地质与开发,2005,24(5):41-43.ZHUGui-nian,JIANG Yong-nian.Doubt about explanation of abnor-mal condensate phenomena in oil reservoir[J].Petroleum Geologyand Oilfield Development in Daqing,2005,24(5):41-43.
• [16]王怒涛,黄炳光,梁尚斌.气井产能分析方法研究[J].大庆石油地质与开发,2004,23(1):33-34.WANG Nu-tao,HUANG Bing-guang,LIANG Shang-bin.Analysismethod for gas well deliverabilitg[J].Petroleum Geology and Oil-field Development in Daqing,2004,23(1):33-34.
• [17]牛彦良,周永炳,刘国志.葡西油田葡萄花油层凝析气藏及成因分析[J].大庆石油地质与开发,2004,23(4):24-25.NIUYan-liang,ZHOUYong-bing,LIUGuo-zhi.Condensate gas res-ervoins of putaohua reservoir in Puxi Oilfield and its genesis analysis[J].Petroleum Geology and Oilfield Development in Daqing,2004,23(4):24-25.