Production prediction method of horizontal wells in tight gas reservoirs considering threshold pressure gradient and stress sensitivity
作者: Ning BoXiang ZupingLiu XianshanLi ZhijunChen ZhonghuaJiang BocaiZhao XinTang HuanChang Xiaolong
作者单位: 1Research Institute of Petroleum Exploration and Development, Beijing, 100083, China
2College of Oil and Gas Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
刊名: Journal of Petroleum Science and Engineering, 2020, Vol.187
来源数据库: Elsevier Journal
DOI: 10.1016/j.petrol.2019.106750
关键词: Dual-porosity tight gas reservoirHorizontal wellProduction forecastingThreshold pressure gradientStress sensitivity
英文摘要: Abstract(#br)This study is aimed at the problem of specific seepage mechanisms, such as the threshold pressure gradient and stress sensitivity, in tight gas reservoirs, which have a tremendous influence on a gas well production prediction. Based on the dual-porosity seepage theory of the horizontal wells in tight gas reservoirs, a seepage model is established considering the two mechanisms of stress sensitivity and threshold pressure gradient comprehensively, adopting a circular closed formation as the research object. Subsequently, the production prediction model is obtained by combining the perturbation theory, the Sturm–Liouville eigenvalue theory, an orthogonal transformation, and a point source function. This production model is proved to be reliable based on analysis of the...
全文获取路径: Elsevier  (合作)
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影响因子:0.997 (2012)

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关键词翻译
关键词翻译
  • threshold 阈值
  • gradient 倾斜度
  • horizontal 水平线
  • considering 鉴于
  • sensitivity 灵敏度
  • prediction 预报
  • pressure 压力
  • tight 密实的
  • stress 应力
  • method 方法