公开(公告)号：US6097786A

公开(公告)日：2000-08-01

申请号：US81161

申请日：1998-05-18

申请人： Joel Groves ,  Harold Pfutzner ,  Jean-Pierre Poyet ,  Peter Wraight

发明人： Joel Groves ,  Harold Pfutzner ,  Jean-Pierre Poyet ,  Peter Wraight

IPC分类号： G01N23/12 ,  G01N23/06

CPC分类号： G01N23/12

摘要： A method and apparatus for characterizing a multiphase mixture by irradiating the mixture with X-rays, collecting the photons that emanate from the mixture in response to the irradiation, generating a signal responsive to the aggregate energy of the collected photons, and analyzing the signal to characterize the mixture. Preferably, the mixture is irradiated by repetitively pulsing an X-ray tube and the photons are collected using a multi-layer detector. The method and apparatus may be used to determine the flow rate, flow velocities, and/or composition of the multiphase mixture. In other embodiments, a plurality of X-ray sources and/or detectors may be used.

摘要翻译： 通过用X射线照射混合物来表征多相混合物的方法和装置，收集响应于照射从混合物发出的光子，产生响应于所收集的光子的聚集能量的信号，并将信号分析 表征混合物。 优选地，通过重复地脉冲X射线管照射混合物，并且使用多层检测器收集光子。 该方法和装置可用于确定多相混合物的流速，流速和/或组成。 在其他实施例中，可以使用多个X射线源和/或检测器。

公开(公告)号：US06781115B2

公开(公告)日：2004-08-24

申请号：US10091251

申请日：2002-03-05

申请人： Christian Stoller ,  Xavier Herve ,  Sunil N. Gulrajani ,  Peter Wraight ,  Verna L. Lomax ,  Dennis J. Pittman ,  Jean-Pierre Poyet

发明人： Christian Stoller ,  Xavier Herve ,  Sunil N. Gulrajani ,  Peter Wraight ,  Verna L. Lomax ,  Dennis J. Pittman ,  Jean-Pierre Poyet

IPC分类号： G01V504

CPC分类号： G01V5/104 ,  G01V5/04

摘要： A system and method are disclosed for detecting radiation phenomena in an area surrounding a wellbore traversing an earth formation. A logging instrument is equipped with combined radiation detectors to provide multiple measurements at the same axial position along the instrument axis, without the use of rotating parts within the instrument. Shielded or segmented detectors provide azimuthally focused detector sensitivity. A controllable radiation source is optionally disposed on the instrument for subsurface irradiation. Also disclosed is the use of radioactive materials in unison with the logging instrument to determine subsurface flow and reservoir characteristics.

摘要翻译： 公开了一种用于检测穿过地层的井身周围区域中的辐射现象的系统和方法。 测井仪器配备有组合式辐射探测器，可在仪器轴线的同一轴向位置提供多次测量，而无需使用仪器内的旋转部件。 屏蔽或分段检测器提供方位角聚焦检测器灵敏度。 可控辐射源可选地设置在仪器上用于地下照射。 还公开了使用放射性材料与测井仪器一致以确定地下水流和储层特性。

公开(公告)号：US5697441A

公开(公告)日：1997-12-16

申请号：US557148

申请日：1996-03-20

申请人： Claude Joseph Vercaemer ,  Stephen Nigel Davies ,  Demosthenis Georgeou Pafitis ,  Geoffrey C. Maitland ,  Jean Pierre Poyet

发明人： Claude Joseph Vercaemer ,  Stephen Nigel Davies ,  Demosthenis Georgeou Pafitis ,  Geoffrey C. Maitland ,  Jean Pierre Poyet

IPC分类号： E21B33/124 ,  E21B33/13 ,  E21B33/134 ,  E21B33/14 ,  E21B43/26

CPC分类号： E21B33/124 ,  E21B33/13 ,  E21B33/134 ,  E21B33/146 ,  E21B43/261

摘要： In the horizontal parts of deviated wells arranged within a producing formation, good communication between the formation and the wellbore liner is required, and this may be achieved by using a slotted or perforated liner in the horizontal section without any cementing to bond the liner to the wellbore. However, problems can arise if it is desired to work selectively in a zone in the horizontal section, since with a perforate liner there is no way of isolating the zone from the remainder of the well by using internal packers. This problem can be overcome by providing packers around the outside of the liner, this then allows packers inside the liner to be used to isolate a portion of the well. However, these external casing packers must be sealed against the wellbore, they must be positioned in advance, and they substantially increase the cost of the completion. The present invention suggests novel means of zonal isolation in a well with a perforate liner, this isolation being achieved by using a liquid composition that can be pumped into the relevant annular region between the liner and the wellbore and then set to form a plug that prevents communication from one side to the other except via the liner. More specifically, the invention provides a method of placing a plug around a perforate liner in which: a pair of spaced packers (14, 16) are placed inside the liner (12) to define both a chamber (20) inside the liner which includes a perforation (22) and also a region (24) to be plugged outside the liner, a predetermined volume of plugging fluid is pumped into the chamber and, via the perforation, into the region to be plugged; and after the plugging fluid has set the packers are removed from the liner.

摘要翻译： PCT No.PCT / GB94 / 01358 Sec。 371日期：1996年3月20日 102（e）1996年3月20日PCT PCT 1994年6月23日PCT公布。 公开号WO95 / 00739 日期1995年1月5日在布置在生产地层内的偏斜井的水平部分中，需要地层和井筒衬套之间良好的连通性，这可以通过在水平部分中使用开槽或穿孔的衬垫来实现，而不需要任何固井 将衬管粘结到井筒上。 然而，如果希望在水平部分的区域中选择性地工作，则可能会出现问题，因为使用穿孔衬套，通过使用内部封隔器，无法将该区域与井的其余部分隔离。 通过在衬套的外部提供封隔器可以克服这个问题，这样就可以使用衬垫内的封隔器来隔离井的一部分。 然而，这些外壳式封隔器必须密封在井眼上，所以它们必须预先定位，并且大大增加了完井的成本。 本发明提出了在具有穿孔衬套的井中的区域分离的新方法，该隔离是通过使用可以泵送到衬套和井眼之间的相关环形区域中的液体组合物来实现的，然后设置成形成防止 从一边到另一边的通信，除了通过班轮。 更具体地，本发明提供了一种将塞子放置在穿孔衬套周围的方法，其中：一对间隔开的封隔器（14,16）放置在衬套（12）内部，以限定衬套内部的室（20），其包括 穿孔（22）以及要封装在衬垫外部的区域（24），将预定体积的堵塞流体泵送到腔室中，并通过穿孔进入待堵塞的区域; 并且在堵塞流体已经设置之后，将封隔器从衬垫上移除。