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首页> 外文学位 >Comparison of overpressure-detection techniques and a determination of overpressure causes in Taranaki Basin, New Zealand.
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Comparison of overpressure-detection techniques and a determination of overpressure causes in Taranaki Basin, New Zealand.

机译：新西兰塔拉纳基盆地超压检测技术的比较和超压成因的确定。

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摘要

Overpressure, the condition in which pore pressure in a geologic formation is greater than the hydrostatic pressure, is an important drilling hazard and can strongly influence hydrocarbon production techniques. This study looks at logs six wells in the deepwater Taranaki Basin in New Zealand. The wells were evaluated using three different approaches to determination of overpressure, with the goal of establishing the reliability of overpressure determination from well logs using some conventional approaches. The first step was to determine using the well logs for density, velocity, and resistivity, established overpressure zone using four techniques. The second step is the calculation of overpressure values of overpressure zone. The final step, these results with indications of overpressure observed on the drilling reports, mud logs, and other post-drilling data. Measured pore pressure, log data, temperature data, drilling data, and mud log data were analyzed for selected wells, including the end-of-well reports.;The four different pore pressure calculation methods used were "Eaton Ratio Resistivity" method, "Eaton Ratio Sonic" method, and "Bowers Sonic" method, and "the Equivalent Depth" method. The methods each provided reasonable estimates, once properly calibrated, although the Eaton Ratio method appears to have provided results that are most consistent with other indicators.;The intervals identified by log interpretation as being overpressured are consistent with drilling data, mud log data and other information from the end-of-well reports.
机译：过压是地质层中孔隙压力大于静水压力的条件，它是重要的钻井隐患，会严重影响烃类生产技术。这项研究着眼于新西兰塔拉纳基盆地深水区的6口测井。使用三种不同的方法来确定油井的超压值，以建立一些常规方法从测井中确定超压油井的可靠性为目标。第一步是使用测井仪确定密度，速度和电阻率，并使用四种技术建立超压区​​。第二步是计算超压区的超压值。最终，这些结果将在钻井报告，泥浆测井和其他钻井后数据中显示出超压迹象。分析了所选井的测得的孔隙压力，测井数据，温度数据，钻井数据和泥浆测井数据，包括测井结束报告。；所使用的四种不同的孔隙压力计算方法是“伊顿比电阻率”方法，“伊顿比率声波”法，“鲍尔斯声波”法和“等效深度”法。尽管伊顿比率法似乎提供了与其他指标最一致的结果，但每种方法均提供了合理的估计值（通过伊顿比率法得出的结果似乎与其他指标最一致）。井下报告中的信息。

著录项

  • 作者

    Kurt, Ummu G.;

  • 作者单位

    Michigan Technological University.;

  • 授予单位 Michigan Technological University.;
  • 学科 Petroleum engineering.;Petroleum geology.
  • 学位 M.S.
  • 年度 2016
  • 页码 81 p.
  • 总页数 81
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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