公开(公告)号：US07432499B2

公开(公告)日：2008-10-07

申请号：US10547961

申请日：2004-03-03

Applicant: John Edwards ,  Christian Stoller ,  Peter Wraight ,  Roger Griffiths ,  Nicolas Renoux

Inventor： John Edwards ,  Christian Stoller ,  Peter Wraight ,  Roger Griffiths ,  Nicolas Renoux

IPC: G01V5/04 ,  G01V5/06

CPC classification number: E21B47/1015 ,  E21B2021/006

Abstract: The invention relates to methods and apparatus for determining a downhole parameter in an underbalanced drilling environment which include: selectively activating a first fluid flowing from the formation through a wellbore while under balanced drilled; detecting the activated first fluid; and determining a depth at which said fluid enters the wellbore.

Abstract translation: 本发明涉及用于确定欠平衡钻井环境中的井下参数的方法和装置，其包括：在平衡钻探的同时，选择性地激活从地层流过井眼的第一流体; 检测活化的第一流体; 以及确定所述流体进入所述井筒的深度。

公开(公告)号：US20080069307A1

公开(公告)日：2008-03-20

申请号：US11751727

申请日：2007-05-22

Applicant: Rod Shampine ,  Peter Wraight ,  Joel L. Groves ,  Anthony Durkowski ,  Etienne Vallee

Inventor： Rod Shampine ,  Peter Wraight ,  Joel L. Groves ,  Anthony Durkowski ,  Etienne Vallee

IPC: H05G1/06

CPC classification number: G01N9/24 ,  G01N23/12 ,  G01N33/2823 ,  G01N2015/0693

Abstract: An x-ray tool for determining a characteristic of an oilfield fluid. The tool may include a generator portion housing a collimator about a target from which x-rays are emitted. In this manner x-rays may be attenuated right at the target such that a majority of shielding otherwise necessary for safety concerns may be eliminated. Rather, by employing the target within the collimator, shielding of the generator may be limited to a single shielding plate within the generator portion that is positioned parallel to the target at the opposite end of an x-ray tube therebetween. As a result of this configuration, an x-ray tool for analysis of oilfield fluids may be provided that is no more than about 50 lbs. in total weight. Thus, hand-held user friendly embodiments may be safely employed at the oilfield.

Abstract translation: 一种用于确定油田流体特性的x射线工具。 工具可以包括发射器部分，其围绕射线X射线的目标容纳准直器。 以这种方式，x射线可以在目标处正确地衰减，使得可能消除对于安全考虑而另外必需的大部分屏蔽。 相反，通过在准直器内采用目标，发生器的屏蔽可以被限制在发生器部分内与X射线管的相对端处的平行于靶的单个屏蔽板。 作为这种结构的结果，可以提供不超过约50磅的用于油田流体分析的X射线工具。 总重量。 因此，在油田可以安全地使用手持用户友好的实施例。

公开(公告)号：US20060254350A1

公开(公告)日：2006-11-16

申请号：US10539465

申请日：2003-11-21

Applicant: Peter Wraight

Inventor： Peter Wraight

IPC: G01V5/12 ,  E21B47/00 ,  E21B47/10 ,  E21B47/08 ,  E21B49/08

CPC classification number: E21B47/1015 ,  E21B47/0003 ,  E21B47/082

Abstract: The invention relates to methods and apparatus for determining downhole mud flow rates and other downhole parameters. A method for determining a downhole parameter includes operating a pulsed neutron generator (6), pulsing the pulsed neutron generator (6) off, detecting a substantially unactivated drilling fluid slug at a known distance (d) from the pulsed neutron generator (6), and determining a time-of-flight (t) for the unactivated drilling fluid slug to travel from the pulsed neutron generator (6) to a detection point.

Abstract translation: 本发明涉及用于确定井下泥浆流量和其它井下参数的方法和装置。 一种用于确定井下参数的方法包括操作脉冲中子发生器（6），使脉冲中子发生器（6）脉冲关闭，在脉冲中子发生器（6）的已知距离（d）处检测基本上未激活的钻井液段， 以及确定未激活的钻井液段从脉冲中子发生器（6）行进到检测点的飞行时间（t）。

公开(公告)号：US6097786A

公开(公告)日：2000-08-01

申请号：US81161

申请日：1998-05-18

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

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

IPC: G01N23/12 ,  G01N23/06

CPC classification number: G01N23/12

Abstract: 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.

Abstract translation: 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。