公开(公告)号：US06850317B2

公开(公告)日：2005-02-01

申请号：US10055070

申请日：2002-01-23

申请人： Oliver C. Mullins ,  Donald Charles McKeon ,  Felix Chen ,  Xu Wu ,  Elizabeth B. Dussan V ,  Henning Groenzin ,  Clelia Canuel

发明人： Oliver C. Mullins ,  Donald Charles McKeon ,  Felix Chen ,  Xu Wu ,  Elizabeth B. Dussan V ,  Henning Groenzin ,  Clelia Canuel

IPC分类号： G01F1/708 ,  G01N21/64 ,  G02B6/34 ,  G02B6/42 ,  G01N33/28

CPC分类号： G01N21/55 ,  G01F1/7086 ,  G01N21/6428 ,  G02B6/29361 ,  G02B6/4246 ,  G02B6/4298

摘要： Apparatus and methods for measuring oil flow velocity in a well are provided which utilize fluorescence quenching. A marker which quenches the natural fluorescence of crude oil is chosen and injected into the oil flow at a first location. At a second location, the oil flow is subjected to light at a wavelength which will cause oil to naturally fluoresce. The fluorescence signal is detected at the second location by a sensing probe. The time that it takes for the quenching marker to move from the first location to the second location is measured by sensing a decrease in fluorescence due to the quencher. Fluid velocity is determined by dividing the distance between the marker-ejection point and the optical probe position by the time it took the marker to move that distance.

摘要翻译： 提供用于测量井中油流速度的装置和方法，其利用荧光淬灭。 选择淬灭原油的天然荧光的标记，并将其注入到第一位置的油流中。 在第二位置，油流经受将导致油自然发荧光的波长的光。 通过感测探针在第二位置处检测荧光信号。 淬灭标记从第一位置移动到第二位置所需的时间是通过感测由于淬灭剂引起的荧光的降低来测量的。 通过将标记射出点和光学探针位置之间的距离除以标记物移动该距离所花费的时间来确定流体速度。

公开(公告)号：US07542142B2

公开(公告)日：2009-06-02

申请号：US11457642

申请日：2006-07-14

申请人： Xu Wu ,  Elizabeth B. Dussan V ,  Oliver C. Mullins

发明人： Xu Wu ,  Elizabeth B. Dussan V ,  Oliver C. Mullins

IPC分类号： G01N21/00 ,  G01N21/55 ,  G01N15/06 ,  G01N21/49 ,  G01N21/85 ,  G01V5/00 ,  G01V5/04 ,  G02B6/00 ,  G02B6/26 ,  G02B6/42

CPC分类号： G02B6/4246 ,  G01F1/7086 ,  G01N21/552 ,  G01N21/64 ,  G01N21/85 ,  G02B6/4298

摘要： Several optical probes useful in downhole applications are provided. A first probe has a tip in the form of a cubical corner with the diagonal of the cubical corner aligned with the axis of the probe. A second probe has a tip formed in a 45° cone. In these designs, light will bounce respectively three times or twice, but still retain the same orientation. To facilitate drainage, the very tip of the probe may be rounded. Both designs also provide a probe with a large numerical aperture and both are useful for detecting reflectance and the holdup of a multiphase fluid. A third probe uses (hemi)spherical or paraboloid probe tip. The third probe tip has a small numerical aperture and is useful for detecting fluorescence and oil velocity. In all three embodiments, the base behind the probe tip may be tapered to facilitate fluid drainage.

公开(公告)号：US07142306B2

公开(公告)日：2006-11-28

申请号：US10055420

申请日：2002-01-23

申请人： Xu Wu ,  Elizabeth B. Dussan V ,  Oliver C. Mullins

发明人： Xu Wu ,  Elizabeth B. Dussan V ,  Oliver C. Mullins

IPC分类号： G01N21/00 ,  G01N21/55 ,  G01N15/06 ,  G01V5/00 ,  G02B6/00 ,  G02B6/26

CPC分类号： G02B6/4246 ,  G01F1/7086 ,  G01N21/552 ,  G01N21/64 ,  G01N21/85 ,  G02B6/4298

摘要： Several optical probes useful in downhole applications are provided. A first probe has a tip in the form of a cubical corner with the diagonal of the cubical corner aligned with the axis of the probe. A second probe has a tip formed in a 45° cone. In these designs, light will bounce respectively three times or twice, but still retain the same orientation. To facilitate drainage, the very tip of the probe may be rounded. Both designs also provide a probe with a large numerical aperture and both are useful for detecting reflectance and the holdup of a multiphase fluid. A third probe uses (hemi)spherical or paraboloid probe tip. The third probe tip has a small numerical aperture and is useful for detecting fluorescence and oil velocity. In all three embodiments, the base behind the probe tip may be tapered to facilitate fluid drainage.

公开(公告)号：US09097106B2

公开(公告)日：2015-08-04

申请号：US13436412

申请日：2012-03-30

申请人： Elizabeth B. Dussan V ,  Abderrhamane Ounadjela ,  Richard D. Joyce ,  Jacques Jundt ,  Douglas W. Grant ,  Edward Harrigan

发明人： Elizabeth B. Dussan V ,  Abderrhamane Ounadjela ,  Richard D. Joyce ,  Jacques Jundt ,  Douglas W. Grant ,  Edward Harrigan

IPC分类号： E21B49/08

CPC分类号： E21B49/082

摘要： An apparatus, method and system are provided for characterizing fluid trapped in a subterranean formation using a downhole tool that includes an elongated body and a probe body. The probe body is moveable from and back into the elongated body. The probe body defines a flow line and supports a pressure sensor for measuring fluid pressure in the flow line, a piston and an electrical motor actuator that is adapted to move the piston in order to vary volume of the flow line. The integral electrical motor actuator, piston, pressure sensor and flow line of the probe body can provide for measurement of formation pressure and/or formation mobility.

摘要翻译： 提供了一种装置，方法和系统，用于使用包括细长主体和探针主体的井下工具来表征捕获在地下地层中的流体。 探针主体可以从背部和后部移动到细长体中。 探针主体限定流线并且支撑用于测量流动管线中的流体压力的压力传感器，适于移动活塞以便改变流动管线体积的活塞和电动机致动器。 探头主体的整体电动机致动器，活塞，压力传感器和流动管线可以提供测量地层压力和/或地层流动性。