基于天然气物性变化的低渗透气藏动态储量计算方法——以靖边气田S区为例

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英文篇名：A method based on physical property change of natural gas to calculate dynamic reserves of low-permeability gas reservoirs: An example from S block, Jingbian gasfield 作者：王浩男 ; 许文壮 ; 田国庆 ; 黄航娟 ; 肖晖 英文作者：Wang Haonan;Xu Wenzhuang;Tian Guoqing;Huang Hangjuan;Xiao Hui;College of Earth Science and Engineering, Xi'an Shiyou University;No.6 Gas Production Plant,PetroChina Changqing Oil?eld Company; 关键词：靖边气田 ; 物性变化 ; 流动物质平衡法 ; 动态储量 英文关键词：Jingbian gasfield;;Physical property change;;Flowing material balance method;;Dynamic reserves 中文刊名：天然气勘探与开发 英文刊名：Natural Gas Exploration and Development 机构：西安石油大学地球科学与工程学院;中国石油长庆油田分公司第六采气厂; 出版日期：2019-03-25 出版单位：天然气勘探与开发 年：2019 期：01 基金：陕西省2018年大学生创新创业训练计划项目(201819049):渭河盆地地温场发育特征及其对水溶型非常规天然气富集的控制作用;; 西安石油大学研究生创新与实践能力培养项目(YCS18112015):渭河盆地构造演化与水溶型氦气富集成藏的耦合关系;西安石油大学研究生创新与实践能力培养项目(TCS18113042):致密岩性低阻油藏成因机理及判别方法研究—以鄂尔多斯盆地盐池地区长4+5为例 语种：中文; 页：72-76 页数：5 CN：51-1159/TE ISSN：1673-3177 分类号：TE155

摘要

低渗透气藏在开发过程中,受应力敏感性的影响,其天然气物性随着压力发生变化。但传统的流动物质平衡法在计算动态储量建立模型时,认为天然气物性是固定不变的,这与实际生产情况不符,势必会造成计算过程中产生误差。针对这个问题,在流动物质平衡法的基础上,考虑了天然气生产过程中压力变化对天然气黏度和压缩系数的影响,推导出改进后的流动物质平衡法计算公式。给出新方法计算的方法和步骤,并在靖边气田S区进行应用。其计算结果表明:流动物质平衡法较修正后的新方法计算的动储量结果偏小,平均误差为12.84%,最大16.15%。新方法减小了流动物质平衡法的计算误差,提高了该方法计算的准确性,且计算简便,在低渗透气藏具有实用性。
        Affected by stress sensitivity, some physical properties of natural gas vary with pressure during development of low-permeability gas reservoirs. When traditional flowing material balance is used to calculate dynamic reserves and establish a model, these properties are considered to be constant, which are not coincident with actual production, and many calculation errors are inevitable.So, a new calculation equation of flowing material balance method was derived from the flowing material balance method by considering the influence of pressure change on viscosity and compression coefficient. And its calculation methods and procedures were developed and applied to S block, Jingbian gasfield. It is indicated that, compared with the new method, the flowing material balance one has a smaller dynamic reserve result, with an average error of 12.84% and the maximum of 16.15%. The new method reduces the calculation error of flowing material balance method and increases the calculation accuracy. What's more, its calculation is simple and very available for low-permeability gas reservoirs.

引文

[1]刘琦,罗平亚,孙雷,等.苏里格气田苏五区块天然气动态储量的计算[J].天然气工业,2012,32(6):46-49.Liu Qi,Luo Pingya,Sun Lei,et al.Calculation of dynamic gas reserves in Block SU-5 of the Sulige Gas field[J].Nature Gas Industry,2012,32(6):46-49.
    [2]张伦友.关于可动储量的概念及确定经济可采储量的方法[J].天然气勘探与开发,1996,19(4):75-76.Zhang Lunyou.Concept of movable reserves and methods for determining economically recoverable reserves[J].Natural Gas Exploration and Development,1996,19(4):75-76.
    [3]McNeil R.The"Flowing"material balance procedure[C]//Annual Technical Meeting,7-9 June 1995,Calgary,Alberta.DOI:http://dx.doi.org/10.2118/95-77.
    [4]Mattar L&Mcneil R.The"Flowing"gas material balance[J].Journal of Canadian Petroleum Technology,1998,37(2):52-55.
    [5]钟海全,周俊杰,李颖川,等.流动物质平衡法计算低渗透气藏单井动态储量[J].岩性油气藏,2012,24(3):108-111.Zhong Haiquan,Zhou Junjie,Li Yingshuan,et al.Dynamic reserve calculation of single well of low permeability gas reservoir based on flowing material balance method[J].Lithologic Reservoirs,2012,24(3):108-111.
    [6]黄发木,许明静.流动物质平衡法在复杂气藏中的适用性研究[J].重庆科技学院学报(自然科学版),2016,18(1):25-27.Huang Famu&Xu Mingjing.Application of flowing material balance method in the calculation of reserves in complex gas reservoir[J].Journal of Chongqing University of Science and Technology(Natural Sciences Edition),2016,18(1):25-27.
    [7]李靖,李相方,胡素明,等.流动物质平衡法误差分析及改进[J].大庆石油地质与开发,2015,34(6):57-61.Li Jing,Li Xiangfang,Hu Suming,et al.Error analysis and improvement of flowing material balance(FMB)method[J].Petroleum Geology&Oilfield Development in Daqing,2015,34(6):57-61.
    [8]李传亮,周涌沂.岩石压缩系数对气藏动态储量计算的影响[J].新疆石油地质,2004,25(5):503-504.Li Chuanliang&Zhou Yongyi.Effect of compressibility on gas reservoir reserve determination[J].Xinjiang Petroleum Geology,2004,25(5):503-504.
    [9]郭奇,李祯,陈开远,等.多因素影响下低渗透气藏动态储量计算新方法[J].断块油气田,2016,23(5):595-598.Guo Qi,Li Zhen,Chen Kaiyuan,et al.New dynamic reserves calculation for low permeability gas reservoir with multi-factored influences[J].Fault-Block Oil and Gas Field,2016,23(5):595-598.
    [10]杨胜来.油层物理学[M].2015.Yang Shenglai.Reservoir Physics[M].2015.
    [11]卓红,王新海,汪金如,等.变高压物性天然气井产能预测方法研究--以塔里木盆地迪那L井为例[J].石油天然气学报,2010,32(5):343-345.Zhuo Hong,Wang Xinhai,Wang Jinru,et al.Methods for predicting productivity of gas wells with variable high pressure and physical property-by taking Well Dina L in Tarim Basin for example[J].Journal of Oil and Gas Technology,2010,32(5):343-345.
    [12]Ghedan SG,胡建国,李祜佑.天然气压缩系数[J].天然气勘探与开发,1995(2):80-83.Ghedan SG,Hu Jianguo&Li Huyou.Natural gas compression factor[J].Natural Gas Exploration and Development,1995(2):80-83.
    [13]吴晗,吴晓东,张庆生,等.普光气田高含硫天然气黏度计算模型优选与评价[J].石油天然气学报,2011,33(7):157-160.Wu Han,Wu Xiaodong,Zhang Qingsheng,et al.Optimization and assessment on model of calculating viscosity of high H2Snatural gas in Puguang Gas filed[J].Journal of Oil and Gas Technology,2011,33(7):157-160.
    [14]李士伦.天然气工程[M].2版.北京:石油工业出版社,2008.Li Shilun.Natural gas engineering[M].2nd ed.Beijing:Petroleum Industry Press,2008.
    [15]王伟,马新仿,辛一男,等.考虑天然气高压物性变化的气藏平均压力计算方法[J].科学技术与工程,2015,15(27):29-33.Wang Wei,Ma Xinfang,Xin Yi'nan,et al.The calculation method of average reservoir pressure considering natural gas high pressure physical properties Changing[J].Science Technology and Engineering,2015,15(27):29-33.
    [16]廖新维,沈平平.现代试井分析[M].北京:石油工业出版社,2002.Liao Xinwei&Shen Pingping.Modern well test analysis[M].Beijing:Petroleum Industry Press,2002.
    [17]张建国.油气层渗流力学[M].2版.北京:中国石油大学出版社,2009.Zhang Jianguo.Oil and gas layer seepage mechanics[M].2nd ed.Beijing:China University of Petroleum Press,2009.