天然气地球科学

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页岩气水平井组产量递减特征及动态监测

谢维扬1,2,刘旭宁3,吴建发1,2 ,张鉴1,2,吴天鹏1,2,陈满4   

  1. 1.中国石油西南油气田公司页岩气研究院,四川 成都 610051;
    2.页岩气评价与开采四川省重点实验室,四川 成都 610051;
    3.中国石油西南油气田公司页岩气勘探开发部,四川 成都 610051;
    4.四川长宁天然气开发有限责任公司,四川 成都  610051
  • 收稿日期:2018-07-16 修回日期:2018-11-02 出版日期:2019-02-10
  • 作者简介:谢维扬(1985-),男,四川成都人,工程师,博士,主要从事气藏渗流理论及动态分析研究.E-mail:xieweiyang@petrochina.com.cn.
  • 基金资助:
    国家科技重大专项“大型油气田及煤层气开发—长宁—威远页岩气开发示范工程”(编号:2016ZX05062);国家科技重大专项“大型油气田及煤层气开发——页岩气气藏工程及采气工艺技术”(编号:2017ZX05037)联合资助.

Production decline characteristic and dynamic monitoring of  horizontal well group in shale gas reservoirs

Xie Wei-yang1,2,Liu Xu-ning3,Wu Jian-fa1,2,Zhang Jian1,2,Wu Tian-peng1,2,Chen Man4   

  1. 1.Shale Gas Research Institute,PetroChina Southwest Oil & Gas Field Company,Chengdu 610051,China;
    2.Shale Gas Evaluation and Exploitation Key Laboratory of Sichuan Province,Chengdu 610051,China;
    3.Shale Gas Research Exploration and Development Department,PetroChina Southwest Oil & Gas Field Company,Chengdu 610051,China;
    4.Sichuan Changning Gas Development Co.Ltd.,Chengdu 610051,China
  • Received:2018-07-16 Revised:2018-11-02 Online:2019-02-10

摘要: 国内外页岩气田大量采用水平井组开发模式,在提高了生产效率的同时也降低了管理成本。基于页岩气藏特殊渗流机理及解吸扩散规律,建立了页岩气多级压裂水平井渗流数学模型,并分析了其不稳定产量递减规律,结合平台式水平井组生产方式,模拟了水平井组内多井生产情况并分析了多井干扰对于水平井组生产效果的影响,进一步明确了在井组内存在不同井数和井距情况下的生产动态特征。通过多种方法对比,认为精细化的数值模拟法适用于页岩气水平井组的产量递减分析,并在此基础上进一步探索性地提出了页岩气水平井组动态监测方案。研究结果为页岩气水平井组开发技术政策制定及动态分析方法优选提供了借鉴。

关键词: 页岩气藏, 压裂水平井, 平台式井组, 多井干扰, 动态监测

Abstract: Fractured horizontal well platform has been widely used in shale gas reservoirs’ develop for its production efficiency and cost controlling improvement.This paper presents a transient analysis model of multi-stage fractured horizontal well with the consideration of special flow mechanism and diffusion characteristic in shale,simulated platform production with multiple-well inside,analyzed multiple-well interference.With the research,the characteristic of horizontal well group with different well number and well space has been established.The precise numerical simulation has been provided to analyze fractured horizontal well platform in shale.According to the defect of single well dynamic monitoring,an improved dynamic monitoring of platform in shale has been presented.The result of this paper can provide technical support for development of fractured horizontal well platform in shale gas reservoirs,improve the exploration of development mode choice and dynamic analysis method research.

Key words: Shale gas reservoirs, Fractured horizontal well, Platform, Multiple-well interference, Dynamic monitoring

中图分类号: 

  • TE357
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