Rate Transient Analysis for Horizontal Well Passing through Inner Region of Composite Gas Reservoir

Expand
  • 1.School of Petroleum Engineering,China University of Petroleum(East China),Qingdao 266580,China;
    2.China National Offshore Oil Corporation(CNOOC) Limited Tianjin Branch,Tianjin 300452,China

Received date: 2014-12-30

  Revised date: 2015-03-25

  Online published: 2015-09-10

Abstract

In the process of gas reservoir development,a composite reservoir may be formed due to acidification,formation pollution or reservoir geological characteristics.An unsteady flow mathematical model is established for horizontal well passing through the inner region of the composite gas reservoir,and the rate transient analysis(RTA)is also conducted.In order to solve the problem,Laplace transform,Muskat method,the superposition of point source and the principle of Duhamal are used to get the transient pseudopressure of horizontal well.On the basis of the transient pseudopressure,the transient rate of horizontal well in real space is obtained by the Stehfest numerical inversion method.The dimensionless rate curves are plotted,and the effects of the dimensionless inner area radius,skin factor,the mobility ratio,the storativity ratio on the dimensionless rate of horizontal well passing through the inner region are analyzed.

Cite this article

JIANG Rui-zhong,GAO Yi-hua,SUN Zhao-bo,TENG Wen-chao,QIAO Xin,LI Yuan . Rate Transient Analysis for Horizontal Well Passing through Inner Region of Composite Gas Reservoir[J]. Natural Gas Geoscience, 2015 , 26(9) : 1773 -1780 . DOI: 10.11764/j.issn.1672-1926.2015.09.1773

References

[1]Joshi S D.Augmentation of well productivity with slant and horizontal wells[J].Journal of Petroleum Technology,1988,40(6):729-739.
[2]Babu D K,Odeh A S.Productivity of a horizontal well[J].SPE Reservoir Engineering,1989,4(4):417-421.
[3]Dikken B J.Pressure drops in horizontal wells and its effect on production performance[J].Journal of Petroleum Engineers,1990,42(11):1426-1433.
[4]Yuan Lin,Li Xiaoping,Zhang Lu,et al.Analysis and correlation of steady-state productivity formulas for horizontal wells[J].Lithologic Reservoirs,2013,25(6):127-132.[袁淋,李晓平,张璐,等.水平井稳态产能公式对比与分析[J].岩性油气藏,2013,25(6):127-132.]
[5]Fan Zifei.Study for horizontal well′s productivity formula in bottom-water drive reservoir[J].Petroleum Exploration and Development,1993,20(1):71-75,81.[范子菲.底水驱动油藏水平井产能公式研究[J].石油勘探与开发,1993,20(1):71-75,81.]
[6]Chen Zhihai,Ma Xinfang,Lang Zhaoxin.Deliverability prediction of horizontal gas well[J].Natural Gas Industry,2006,26(2):98-99.[陈志海,马新仿,郎兆新.气藏水平井产能预测方法[J].天然气工业,2006,26(2):98-99.]
[7]Zhang Jing,Hu Yongle,Ran Qiquan,et al.Comprehensive research on the productivity and pressure loss of horizontal well in gas reservoir[J].Natural Gas Geoscience,2010,21(1):157-162.[张晶,胡永乐,冉启全,等.气藏水平井产能及水平段压力损失综合研究[J].天然气地球科学,2010,21(1):157-162.]
[8]Xiong Jun,He Hanping,Xiong Youming,et al.Production prediction of partially completed horizontal well in gas reservoir[J].Natural Gas Geoscience,2014,25(2):286-290.[熊军,何汉平,熊友明,等.气藏水平井分段完井产能预测[J].天然气地球科学,2014,25(2):286-290.]
[9]Liu Xiangping.A new model of calculating steady state productivity of the horizontal well in gas reservoir[J].Nature Gas Industry,1998,18(1):51-54,9.[刘想平.气藏水平井稳态产能计算新模型[J].天然气工业,1998,18(1):51-54,9.]
[10]Jiang Houshun,Bai Yanhua,Ran Jianli.Prediction of horizontal well deliverability and optimization of perforation parameters[J].Natural Gas Geoscience,2007,18(6):891-893.[江厚顺,白彦华,冉建立.水平井产能预测及射孔参数优选系统研究[J].天然气地球科学,2007,18(6):891-893.]
[11]Jiang Kai,He Zhixiong,Li Min,et al.Analysis on transient deliverability of horizontal gas wells[J].Fault-block Oil & Gas Field,2010,17(6):738-740,744.[蒋开,何志雄,李闽,等.水平气井不稳定产能分析[J].断块油气田,2010,17(6):738-740,744.]
[12]Chen C C,Raghavan R.Supplement to SPE 28393,Modelling a Fractured Well in a Composite Reservoir[R].Society of Petroleum Engineers.SPE 35470,1995.
[13]Ambastha A K,Ghaffari K.A numerical investigation of pressure transient analysis for horizontal wells in composite reservoirs mimicking thermal recovery situations[J].Journal of Canadian Petroleum Technology,1998,37(3):25-30.
[14]Wang Xiaodong,Liu Ciqun.Pressure analysis for horizontal wells in composite reservoirs[J].Acta Petrolei Sinica,1997,18(2):72-77.[王晓冬,刘慈群.复合油藏中水平井压力分析[J].石油学报,1997,18(2):72-77.]
[15]Shi Guoxin,Nie Renshi,Lu Jianguo,et al.Well test model of horizontal well in 2-zoned composite reservoir and example interpretation[J].Journal of Southwest Petroleum University:Science & Technology Edition,2012,34(5):99-106.[石国新,聂仁仕,路建国,等.2区复合油藏水平井试井模型与实例解释[J].西南石油大学学报:自然科学版,2012,34(5):99-106.]
[16][JP2]Gringarten A C,Ramey H J.The use of source and Green′s function in solving unsteady-flow problems in reservoirs[J].Society of Petroleum Engineers Journal,1973,13(5):285-296.
[17]Ozkan E.New Solutions for Well-test-analysis Problems:Part Ⅲ-additional Algorithms[R].SPE Annual Technical Conference and Exhibition,25-28 September,New Orleans,Louisiana.SPE 28424,1994.
[18]Van-Everdingen A F,Hurst W.The application of the Laplace transformation to flow problem in reservoirs[J].Journal of Petroleum Technology,1949,1(12):305-324.
[19]Tong Dengke,Chen Qinlei.Some annotation about Stehfest method of Laplace numerical inversion[J].Acta Petrolei Sinica,2001,22(6):91-92.[同登科,陈钦雷.关于Laplace数值反演Stehfest方法的一点注记[J].石油学报,2001,22(6):91-92.]

Outlines

/