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A Comparative Study of Flowback Rate and Pressure Transient Behaviour in Multifractured Horizontal Wells.

机译:多裂水平井中返排率和压力瞬变行为的比较研究。

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摘要

Tight reservoirs stimulated by multistage hydraulic fracturing are commonly characterized by analyzing the hydrocarbon production data. However, analyzing the hydrocarbon production data can best be applied to estimate the effective fracture-matrix interface, and is not enough for a full fracture characterization. Before flowback, the induced fractures are filled with the compressed water. Therefore, analyzing the early-time rate and pressure of fracturing water and gas/oil should in principle be able to partly characterize the induced fractures, and complement the conventional production data analysis.;We develop an analytical model to compare the pressure/rate transient behaviour of multifractured horizontal wells (MFHW) completed in one tight oil and two tight gas wells. We also construct a series of diagnostic plots to study the flowback behaviour of 18 MFHW completed in the Horn River basin. We observe unique signatures that suggest initial free gas in the fracture network before starting the flowback operation.
机译:通常通过分析油气产量数据来表征多级水力压裂刺激的致密油藏。但是,分析碳氢化合物生产数据可以最好地用于估算有效的裂缝-基质界面,并且不足以进行完整的裂缝表征。在回流之前,诱发的裂缝充满了压缩水。因此,分析压裂水和气/油的早期速率和压力原则上应该能够部分表征诱发裂缝,并补充常规的生产数据分析。;我们建立了一个分析模型来比较压力/速率瞬变一口致密油井和两口致密气井完井的多裂口水平井的行为我们还构建了一系列诊断图来研究在霍恩河流域完成的18 MFHW的回流行为。我们观察到独特的特征,表明在开始反流作业之前,裂缝网络中的初始游离气体。

著录项

  • 作者

    Abbasi, Majid Ali.;

  • 作者单位

    University of Alberta (Canada).;

  • 授予单位 University of Alberta (Canada).;
  • 学科 Engineering Civil.;Engineering Environmental.
  • 学位 M.S.
  • 年度 2013
  • 页码 130 p.
  • 总页数 130
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 老年病学;
  • 关键词

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