公开(公告)号：US09316761B2

公开(公告)日：2016-04-19

申请号：US13357786

申请日：2012-01-25

Applicant: Carl M. Edwards ,  Daniel T. Georgi ,  Antonius M. Loermans

Inventor： Carl M. Edwards ,  Daniel T. Georgi ,  Antonius M. Loermans

IPC: G01V7/06 ,  G06F17/00

CPC classification number: G01V7/06 ,  G06F17/00

Abstract: An apparatus and method for estimating reservoir connectivity using gravity estimates at a fluid contact for each of two or more boreholes. The method may include identifying fluid contacts in the boreholes. The method may include additional gravity estimates at and/or between a well head and the fluid contact of each borehole. The method may include gravity estimates along a surface between well heads of the boreholes. The method may include estimating true vertical depth for the boreholes. The apparatus may include at least one gravimeter and a processor configured to estimate reservoir connectivity using estimates from the gravimeter.

Abstract translation: 一种用于使用两个或更多个钻孔中的每一个的流体接触处的重力估计来估计储层连通性的装置和方法。 该方法可以包括识别钻孔中的流体接触。 该方法可以包括在井头和每个钻孔的流体接触之间和/或之间的额外的重力估计。 该方法可以包括沿着钻孔的井头之间的表面的重力估计。 该方法可以包括估计钻孔的真实垂直深度。 该装置可以包括至少一个重力计和配置成使用来自重力仪的估计来估计储层连接性的处理器。

公开(公告)号：US20130018602A1

公开(公告)日：2013-01-17

申请号：US13180902

申请日：2011-07-12

Applicant: Joo Tim Ong ,  Terry R. Bussear ,  Carl M. Edwards ,  Graeme S. Young

Inventor： Joo Tim Ong ,  Terry R. Bussear ,  Carl M. Edwards ,  Graeme S. Young

IPC: G01F1/58

CPC classification number: F17D5/02 ,  G01F1/58 ,  G01F1/716 ,  G01F1/74 ,  G01N24/081 ,  G01R33/0047 ,  G01R33/383 ,  G01R33/56308

Abstract: An apparatus and method for estimating a parameter of a fluid flowing in a tubular is disclosed. A source of a primary magnetic field is coupled to the tubular and is configured to induce the primary magnetic field in the fluid to align nuclei of the fluid in the tubular along the primary magnetic field. A transmitter transmits an excitation signal into the fluid. A receiver detects a signal from the aligned nuclei responsive to the excitation signal. A processor estimates the parameter of the fluid from the detected signal. The source of the primary magnetic field is removable from the tubular. A coil may induce a secondary magnetic field to either enhance the strength of the primary magnetic field in the tubular or substantially cancel the primary magnetic field in the tubular, for example, to reduce particle build-up in the tubular.

Abstract translation: 公开了一种用于估计在管状体中流动的流体的参数的装置和方法。 主磁场的源耦合到管状物并被配置成诱导流体中的初级磁场沿着主磁场对准管中的流体的核。 发射器将激励信号发射到流体中。 接收机根据激励信号检测来自对准的核的信号。 处理器根据检测到的信号估计流体的参数。 初级磁场的来源可以从管状物中取出。 线圈可以引起次级磁场以增强管中的初级磁场的强度或基本上消除管中的初级磁场，例如以减少管中的颗粒积聚。

公开(公告)号：US20120092007A1

公开(公告)日：2012-04-19

申请号：US12971740

申请日：2010-12-17

Applicant: Lilong Li ,  Songhua Chen ,  Carl M. Edwards

Inventor： Lilong Li ,  Songhua Chen ,  Carl M. Edwards

IPC: G01R33/44 ,  G01F1/56

CPC classification number: G01N24/081 ,  G01F1/716 ,  G01F1/74 ,  G01N24/082 ,  G01R33/445

Abstract: A method and apparatus for estimating a flow rate of a phase of a multiphase fluid is disclosed. In the first method, nuclei in the fluid are polarized over two distances and a measured magnetization gives the relative fraction of two components of the fluid for a selected velocity. In the second method, nuclei in the fluid are polarized over a specified distance and measurements of the decay of spin echo signals is used to give the relative fraction of two components of the fluid for the selected velocity.

Abstract translation: 公开了一种用于估计多相流体的相的流量的方法和装置。 在第一种方法中，流体中的核在两个距离上被极化，并且测量的磁化给出了所选流速的流体的两个分量的相对分数。 在第二种方法中，流体中的核在一定距离上被极化，并且使用自旋回波信号衰减的测量值来给出所选速度的流体的两个分量的相对分数。

公开(公告)号：US20090126486A1

公开(公告)日：2009-05-21

申请号：US11943200

申请日：2007-11-20

Applicant: Daniel T. Georgi ,  Carl M. Edwards ,  Sheng Fang ,  Rocco DiFoggio ,  Robert Estes

Inventor： Daniel T. Georgi ,  Carl M. Edwards ,  Sheng Fang ,  Rocco DiFoggio ,  Robert Estes

IPC: G01V7/00

CPC classification number: G01V7/16

Abstract: An instrument for measuring gravitational acceleration, the instrument including: a plurality of accelerometers disposed about a three-dimensional structure, the plurality of accelerometers providing output used for measuring the gravitational acceleration; wherein each accelerometer in the plurality is implemented by at least one of a micro-electromechanical system (MEMS) and a nano-electromechanical system (NEMS).

Abstract translation: 一种用于测量重力加速度的仪器，所述仪器包括：围绕三维结构设置的多个加速度计，所述多个加速度计提供用于测量重力加速度的输出; 其中多个中的每个加速度计由微机电系统（MEMS）和纳米机电系统（NEMS）中的至少一个来实现。

公开(公告)号：US07012426B2

公开(公告)日：2006-03-14

申请号：US10765611

申请日：2004-01-27

Applicant: Carl M. Edwards ,  Daniel T. Georgi

Inventor： Carl M. Edwards ,  Daniel T. Georgi

IPC: G01V3/00

CPC classification number: G01V3/32 ,  G01N24/081 ,  G01R33/383 ,  Y02A90/344

Abstract: Wireline NMR well logging measurements suffer from disadvantages of poor vertical resolution, logging speeds less than 20 ft/min, and power consumption in excess of 200 W. In spite of these disadvantages, NMR well logging is used because it is capable of providing estimates for a number of petrophysical parameters that are difficult to obtain from other wireline data. These include estimates of the bulk volume irreducible (BVI) of fluids in the formation. The present invention targets BVI and clay bound water (CBW) measurements. Logging speeds of up to 60 ft/min are attainable with little or no loss of resolution. In one preferred embodiment, the tool has four sensors circumferentially distributed around the logging tool and in contact with the borehole wall. A horseshoe like magnet is used to generate the static magnetic field. The magnet poles are designed such that the magnetic field is uniform perpendicular tool motion, as well as provide a sufficiently large extent of the static field to provide polarization for bound water in rock formations. The RF portion of the sensor is comprised of at least one coil configured for transmission of an RF magnetic field into rock formations and at least two coils configured to separately receive the NMR signal from the formation. In another embodiment a coil is wound around the pole pieces or the iron yoke for the purpose of field shifting to enable acquisition of phase-alternated measurements.

公开(公告)号：US06452389B1

公开(公告)日：2002-09-17

申请号：US09778554

申请日：2001-02-07

Applicant: Carl M. Edwards

Inventor： Carl M. Edwards

IPC: G01V300

CPC classification number: G01R33/50 ,  G01N24/081 ,  G01R33/5617

Abstract: A plurality of CPMG sequences is used to obtain NMR data with an instrument having a gradient magnetic with a constant resolution of T2. Different values of acquisition time (AT) are used for different frequencies with a typical ratio of the number of frequencies having a given AT being 1:1:2:4:8 with a corresponding ratio of ATs of 16:8:4:2:1. In an alternate embodiment of the invention, modified CPMG sequences are used wherein the angle associated with the refocusing pulses is less than 180°.

Abstract translation: 使用多个CPMG序列以具有具有恒定分辨率T2的梯度磁性的仪器来获得NMR数据。 采集时间（AT）的不同值用于不同频率，具有给定AT的频率的典型比例为1:1:2:4:8，相应的AT比例为16：8：4：2 ：1。 在本发明的替代实施例中，使用修改的CPMG序列，其中与重聚焦脉冲相关联的角度小于180°。

公开(公告)号：US06111409A

公开(公告)日：2000-08-29

申请号：US033104

申请日：1998-03-02

Applicant: Carl M. Edwards ,  Otto N. Fanini ,  Stanislav W. Forgang

Inventor： Carl M. Edwards ,  Otto N. Fanini ,  Stanislav W. Forgang

IPC: G01R33/44 ,  G01V3/32 ,  G01V3/00

CPC classification number: G01N24/081 ,  G01V3/32

Abstract: A method for characterizing a fluid sample withdrawn from an earth formation. The method includes performing nuclear magnetic resonant spin echo measurements on the fluid sample at a nuclear magnetic resonant frequency of carbon-13. Amplitudes of the spin echo measurements are summed. The summed measurements are spectrally analyzed. The fluid is characterized by determining whether aromatic hydrocarbons are present by measuring an amplitude of the spectrally analyzed spin echo measurements at about 130 part per million shift from the carbon-13 frequency. The fluid is also characterized by determining whether aliphatic hydrocarbons are present by measuring an amplitude of the spectrally analyzed spin echo measurements at about 30 parts per million frequency shift.

Abstract translation: 用于表征从地层中取出的流体样品的方法。 该方法包括在碳-13的核磁共振频率下对流体样品进行核磁共振自旋回波测量。 自旋回波测量的幅度相加。 对光谱进行光谱分析。 流体的特征在于通过测量从碳-13频率开始的大约130百万分之一的频谱分析的自旋回波测量的振幅来确定芳族烃是否存在。 流体的特征还在于通过以每百万次频移大约30个百分点测量频谱分析的自旋回波测量的幅度来确定脂族烃是否存在。

公开(公告)号：US10145976B2

公开(公告)日：2018-12-04

申请号：US15166717

申请日：2016-05-27

Applicant: Marc S. Ramirez ,  Carl M. Edwards ,  Stanislav W. Forgang ,  Babak Kouchmeshky

Inventor： Marc S. Ramirez ,  Carl M. Edwards ,  Stanislav W. Forgang ,  Babak Kouchmeshky

IPC: G01R33/383 ,  G01V3/32 ,  G01R33/34 ,  G01N24/08 ,  G01R33/3415 ,  G01R33/38 ,  G01R33/36

Abstract: A nuclear magnetic resonance apparatus for estimating properties of an earth formation includes a carrier configured to be deployed in a borehole in the earth formation and at least one transmitting assembly disposed in the carrier and configured to generate an oscillating magnetic field in a volume of interest within the earth formation. The apparatus also includes at least one receiving assembly disposed in the carrier and configured to detect a nuclear magnetic resonance (NMR) signal originating in the volume of interest. In this apparatus, the receiving assembly includes at least a first longitudinal region with a loop coil and a butterfly coil, the loop coil central axis being located over a region of the magnet assembly where a static magnetic field is predominantly along an azimuthal direction to the carrier and the butterfly coil being at least partially overlapped with the loop coil to reduce mutual coupling.

公开(公告)号：US10119987B2

公开(公告)日：2018-11-06

申请号：US15007752

申请日：2016-01-27

Applicant: Robert W. Adams ,  Carl M. Edwards ,  Sebastian Csutak ,  Felix Wellmann ,  Otto Fanini

Inventor： Robert W. Adams ,  Carl M. Edwards ,  Sebastian Csutak ,  Felix Wellmann ,  Otto Fanini

IPC: G01P15/08 ,  G01P15/13 ,  G01P15/03 ,  G01P1/00 ,  G01V7/00

Abstract: An apparatus for measuring acceleration includes: a reference cavity having a first fixed reflecting surface and a second fixed reflecting surface; a sense cavity having a fixed reflecting surface and a non-fixed reflecting surface, the non-fixed reflecting surface being configured to be displaced when subject to an acceleration force; a light source to illuminate the reference and sense cavities; a controller to vary a wavelength of light emitted by the light source and/or an index of refraction of an optical medium of the cavities; a photodetector to detect light emitted by the reference and sense cavities; an interferometer sensor to measure using the detected light, for each variation of the wavelength of light and/or the index of refraction a reference displacement of the reference cavity and a sense displacement of the sense cavity; and a processor to calculate the acceleration using each of the reference displacements and the sense displacements.

公开(公告)号：US09933546B2

公开(公告)日：2018-04-03

申请号：US14863897

申请日：2015-09-24

Applicant: Carl M. Edwards ,  Ian Turner

Inventor： Carl M. Edwards ,  Ian Turner

IPC: G01V8/22 ,  G01J9/02 ,  G01H9/00 ,  G01P15/093 ,  G02B5/28

CPC classification number: G01V8/22 ,  G01H9/004 ,  G01J9/0246 ,  G01P15/093 ,  G01V2210/1429 ,  G02B5/284

Abstract: An embodiment of an apparatus for estimating a parameter includes a light source configured to emit an optical signal, and an interferometer including a first reflector assembly having at least one reflective surface and a second reflector assembly having a plurality of individual reflective surfaces facing the at least one reflective surface. At least one of the first reflective assembly and the second reflector assembly is moveable in response to a stimulus, the plurality of individual reflective surfaces disposed at a fixed location relative to each other, each individual reflective surface defining a different optical cavity length relative to the first reflector assembly.