刘方玉,蒋凯军,马华丽,张雁
LIU Fang-yu1,2,JIANG Kai-jun2,MA Hua-li2

• 1:中国地质大学能源学院
• 2:大庆油田有限责任公司试油试采分公司
• 3:大庆油田有限责任公司试油试采分公司
• 4:大庆油田有限责任公司试油试采分公司 北京100083

摘要(Abstract)：

气井稳定产能二项式方程是根据均质地层中稳定渗流理论推导而来,在非均质地层中不能简单地进行套用,有必要对稳定产能方程在非均质地层中适用性进行分析。根据试井渗流理论中的叠加原理对复合地层中气井的稳定产能方程进行推导,得到了两个不同渗透区域的稳定产能方程和无阻流量计算公式。理论和实例分析证实:无论复合地层中内外区渗透性如何改变,生产范围为内区得到的无阻流量始终比外区的大。外环渗透性变得越好,后期与初期得到的无阻流量越接近;外环渗透性越差,后期较初期得到的无阻流量减少得越多,则气井产量降得也快。通过分析证明,稳定产能方法适用于外区渗透性高于内区渗透率的复合地层中气井产能评价,而对于外区渗透性变差的气井,用稳定产能方法很难指导现场气井生产。
Being derived from steady filtration theory of homogenous porous media,steady productivity binomial equation of gas well cannot be applied directly in heterogeneous porous media.Thus it is necessary to analyze applicability steady productivity binomial equation of gas well in heterogeneous porous media.Based on superposition principle,steady productivity binomial equation of gas well in compound formation is developed.Two steady productivity binomial equations and open flow rate calculations are obtained.Analysis on equations and cases show that open flow rate of inner-annular zone is always higher than that of outer zone,even though permeability in outer zone becomes higher than that in inner zone.If permeability in outer zone is much higher than inner zone,the outer open flow rate can be close to inner one.On the other hand,if permeability in outer gets lower,the outer open flow rate decrease with the producing period increasing.Therefore,steady productivity binomial equation can be applied in gas well productivity evaluation in compound formation,in which permeability in outer zone is much higher than inner one.

关键词(KeyWords)： 气井产能评价;稳定产能方程;无阻流量;复合储层
productivity evaluation of gas well;steady productivity equation;open flow rate;compound formation

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 刘方玉,蒋凯军,马华丽,张雁
LIU Fang-yu1,2,JIANG Kai-jun2,MA Hua-li2

参考文献(References)：

• [1]廖代勇.气井产能分析的发展研究[J].天然气工业,2006,(2):100-101.LIAO Dai-yong,Study on development of gas well productivity analysis[J].Natural Gas Lndustry,2006,(2):100-101.
• [2]黄炳光.气藏工程分析方法[M].北京:石油工业出版社,2004.HUANG Bing-guang,Analysis method of gas reservoir engineering[M].Petroleum Industry Press,2004.
• [3]中国油气井测试资料解释范例编写组.中国油气井测试资料解释范例[M].北京:石油工业出版社,1994.Editor group of logging data interpretation examples of Chinese oil andgas wells.Logging data interpretation examples of Chinese oil and gaswells[M].Petroleum Industry Press,1994.
• [4]王怒涛,黄炳光.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,Study on analysis method of gaswell productivity[J].Petroleum Geology&Oilfield Development inDaqing,2004,23(1):33-34
• [5]王鸣华.气藏工程[M].北京:石油工业出版社,1997.WANG Ming-hua,Gas reservoir engineering[M].Petroleum Indus-try Press,1997.
• [6]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 modal and its application offlow pressure determination of condensate gas well in dual media forma-tion[J].Petroleum Geology&Oilfield Development in Daqing,2005,24(6):45-47
• [7]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.CHAN An-le,LI Xiao-ping,Flow model of multi-layer condensate gasreservoir and its application in well test analysis[J].Petroleum Geol-ogy&Oilfield Development in Daqing,2005,24(3):51-54.
• [8]孔祥言.高等渗流力学[M].北京:中国科学技术大学出版社,1999.KONG Xiang-yan,High level flowmechanism[M].Press of Univer-sity of Science and Technology of China,1999.
• [9]庄惠农.气藏动态描述和试井[M].北京:石油工业出版社,2004.ZHUANG Hui-nong,Dynamic characterization and well test of gas res-ervoir[M].Petroleum Industry Press,2004.
• [10]李汝勇.气井产能的影响参数敏感性分析[J].大庆石油地质与开发,2006,25(2):34-36.LI Ru-yong,Affecting parameters and sensitivity analysis of gas wellproductivity[J].Petroleum Geology&Oilfield Development inDaqing,2006,25(2);34-36.