煤层气井单井动态控制储量计算方法

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英文篇名：Reserve calculation method for coalbed methane well controlled 作者：王博 ; 傅江 ; 董伟 ; 董琴 ; 宋军政 ; 邓元洲 ; 隋伟鹏 英文作者：WANG Bo1,FU Jiang2,DONG Wei1,DONG Qin3, SONG Junzheng4,DENG Yuanzhou4,SUI Weipeng5 (1.School of Energy Resources,Chengdu University of Technology,Chengdu Sichuan 610059,China;2.Research Institute of Exploration and Development,CNPC Southwest Oil-Gas Branch Company, Chengdu Sichuan 610051,China;3.Safety Environment & Technology Supervision Research Institute,CNPC Southwest Oil & Gasfield Company, Chengdu Sichuan 610213,China;4.CCDC Drilling & Production Engineering Technology Research Institute,Chengdu Sichuan 610051,China;5.Binnan Production Plant Shengli Oilfield,Binzhou Shandong 256600,China) 关键词：煤层气 ; 物质平衡 ; 动态储量 ; 排采分析 英文关键词：coalbed methane;material balance;dynamic reserves;analysis of coalbed methane production 中文刊名：NXSH 英文刊名：Petrochemical Industry Application 机构：成都理工大学能源学院;中石油西南油气田公司勘探开发研究院;中石油西南油气田公司安全环保与技术监督研究院;中石油川庆钻探钻采工程技术研究院;胜利油田滨南采油厂; 出版日期：2013-04-25 出版单位：石油化工应用 年：2013 期：v.32;No.137 基金：教育部博士学科点新教师类基金资助,项目编号:20095122120012 语种：中文; 页：NXSH201304004 页数：4 CN：04 ISSN：64-1058/TE 分类号：15-18

摘要

煤层气单井生产规律与常规气井差异很大,利用常规分析方法很难计算出煤层气井的动态控制储量。本文在煤层气的储集特征以及"解吸-扩散-渗流"规律基础上,利用物质平衡原理、气体状态方程、朗格缪尔解吸规律,建立了煤层气井物质平衡计算数学表达式,绘制了不同压力下解吸气与游离气的比例变化规律曲线,分析了煤层气气藏物质平衡图版与常规气藏物质平衡图版的区别。运用本文建立的方法对沁水盆地潘庄区块煤层气井进行了储量评价,结果表明煤层气井物质平衡储量计算方法准确可靠,对煤层气井的排采分析具有一定的指导意义。
        Coalbed gas well's production process is very different from conventional gas well, it’s hard to calculate the single well controlled reserves by the conventional way.Material balance principle、equation of gas state and Langmuir desorption laws were engaged in this paper,based on reservoir feature and"desorb- diffuse- Seepage Flow"laws,the material balance equation of coal bed methane influent were established,with the the change law of adsorbed gas and free gas amount of different pressure marked,the difference of material balance chart between coalbed gas reservoir and conventional reservoir were analysised.Using the method of this article established to estimate the reserves of the coal bed gas well of Panzhuang block in Qinshui basin,the result prove that the material balance equation of coal bed methane influent was accurate and reliable,which has guiding significance for the analysis of coalbed gas production.

引文

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