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1. 发明申请

US20120158310A1 METHOD OF DETERMINING RESERVOIR PRESSURE 有权
标题翻译：确定储层压力的方法
公开(公告)号：US20120158310A1
公开(公告)日：2012-06-21
申请号：US13327182
申请日：2011-12-15
申请人： John R. Adams , Siyavash Motealleh , Herbert M. Sebastian , Yuanlin Jiang , Bryan Dotson
发明人： John R. Adams , Siyavash Motealleh , Herbert M. Sebastian , Yuanlin Jiang , Bryan Dotson
IPC分类号： G06F19/00 , G01V9/02
CPC分类号： E21B47/06 , E21B49/003 , E21B49/008 , E21B2049/085 , G01V9/02
摘要： A new approach is disclosed for measuring the pressure of tight gas reservoirs, using information obtain from continuous injection prior to hydraulic fracture stimulation. The technique can be obtained utilizing either bottom-hole or surface pressure gauges and properly instrumented surface injection pumps. The analysis is completed by plotting injection and rate data in a specialized form from terms arranged in Darcy's radial flow equation to obtain a curve or trend. The key component to proper application of this technique is to obtain both baseline and one or more calibration data sets. These calibration data sets are obtained by either increasing or decreasing the injection pressure and/or rate from the baseline data. Initial reservoir pressure is assumed, but the calibration data indicates if the guess was too high or low. Accurate estimates of reservoir pressure may be obtained in a few iterations.
摘要翻译：公开了一种新的方法来测量紧密气藏的压力，使用在水力压裂刺激之前从连续注射获得的信息。该技术可以利用底孔或表面压力表和适当仪表的表面注射泵来获得。通过以Darcy的径向流方程式排列的术语以专门的形式绘制注射和速率数据，以获得曲线或趋势，从而完成分析。正确应用该技术的关键部分是获得基线和一个或多个校准数据集。这些校准数据集是通过从基线数据增加或减少注入压力和/或速率获得的。假设初始储层压力，但校准数据表明猜测是否过高或过低。油藏压力的准确估计可以在几次迭代中获得。

2. 发明授权

US09163499B2 Method of determining reservoir pressure 有权
标题翻译：确定储层压力的方法
公开(公告)号：US09163499B2
公开(公告)日：2015-10-20
申请号：US13327182
申请日：2011-12-15
申请人： John R. Adams , Siyavash Motealleh , Herbert M. Sebastian , Yuanlin Jiang , Bryan Dotson
发明人： John R. Adams , Siyavash Motealleh , Herbert M. Sebastian , Yuanlin Jiang , Bryan Dotson
IPC分类号： E21B47/06 , G01V9/02 , E21B49/08 , E21B49/00
CPC分类号： E21B47/06 , E21B49/003 , E21B49/008 , E21B2049/085 , G01V9/02
摘要： A new approach is disclosed for measuring the pressure of tight gas reservoirs, using information obtain from continuous injection prior to hydraulic fracture stimulation. The technique can be obtained utilizing either bottom-hole or surface pressure gauges and properly instrumented surface injection pumps. The analysis is completed by plotting injection and rate data in a specialized form from terms arranged in Darcy's radial flow equation to obtain a curve or trend. The key component to proper application of this technique is to obtain both baseline and one or more calibration data sets. These calibration data sets are obtained by either increasing or decreasing the injection pressure and/or rate from the baseline data. Initial reservoir pressure is assumed, but the calibration data indicates if the guess was too high or low. Accurate estimates of reservoir pressure may be obtained in a few iterations.
摘要翻译：公开了一种新的方法来测量紧密气藏的压力，使用在水力压裂刺激之前从连续注射获得的信息。该技术可以利用底孔或表面压力表和适当仪表的表面注射泵来获得。通过以Darcy的径向流方程式排列的术语以专门的形式绘制注射和速率数据，以获得曲线或趋势，从而完成分析。正确应用该技术的关键部分是获得基线和一个或多个校准数据集。这些校准数据集是通过从基线数据增加或减少注入压力和/或速率获得的。假设初始储层压力，但校准数据表明猜测是否过高或过低。油藏压力的准确估计可以在几次迭代中获得。

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