公开(公告)号：WO2011032080A3

公开(公告)日：2011-07-21

申请号：PCT/US2010048607

申请日：2010-09-13

Applicant: SCHLUMBERGER CA LTD ,  SCHLUMBERGER TECHNOLOGY BV ,  PRAD RES & DEV LTD ,  SCHLUMBERGER SERVICES PETROL ,  SCHLUMBERGER HOLDINGS ,  PAYTON ROBERT MICHAEL

Inventor： PAYTON ROBERT MICHAEL

IPC: G01V7/00 ,  E21B47/00 ,  G01V3/26

CPC classification number: G01V7/04

Abstract: A technique facilitates the measurements of forces, such as forces that result from gravity and acceleration. The system and methodology utilize a plurality of electrodes that cooperate with a movable electrode. By applying appropriate signals to the electrodes, the movable electrode can be levitated in a manner that creates a sensor system able to accurately detect forces resulting from gravity, acceleration and similar causes.

Abstract translation: 一种技术有助于测量力，例如由重力和加速度引起的力。 该系统和方法利用与可动电极配合的多个电极。 通过向电极施加适当的信号，可移动电极可以以创建传感器系统的方式悬浮，该传感器系统能够精确地检测由重力，加速度和类似原因导致的力。

公开(公告)号：WO2009082550A3

公开(公告)日：2010-03-04

申请号：PCT/US2008082491

申请日：2008-11-05

Applicant: BAKER HUGHES INC ,  DIFOGGIO ROCCO

Inventor： DIFOGGIO ROCCO

IPC: G01V7/08

CPC classification number: G01V7/04 ,  E21B47/00 ,  G01D5/30

Abstract: An instrument for measuring gravitational acceleration from within a borehole, the instrument including: a light source having a semiconductor that comprises a bandgap greater than about two electron volts (eV); and a gravimeter for receiving light from the light source and providing output light with a characteristic related to the gravitational acceleration, the gravimeter implemented at least one of a nano electro- mechanical system (NEMS) and a micro electro-mechanical system (MEMS); wherein the light source and the gravimeter are disposed in a housing adapted for insertion into the borehole.

Abstract translation: 一种用于从钻孔内测量重力加速度的仪器，所述仪器包括：具有包括大于约两电子伏（eV）的带隙的半导体的光源; 以及用于接收来自光源的光并且提供具有与重力加速度相关的特性的输出光的重力计，重力计实现了纳米机电系统（NEMS）和微机电系统（MEMS）中的至少一个。 其中所述光源和所述重力计设置在适于插入所述钻孔中的壳体中。

公开(公告)号：WO2017099727A1

公开(公告)日：2017-06-15

申请号：PCT/US2015/064468

申请日：2015-12-08

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： BHONGALE, Satyan Gopal ,  LEBLANC, Michel Joseph

IPC: E21B47/00 ,  G01V7/02 ,  G01V7/04

CPC classification number: G01V7/04 ,  E21B47/10 ,  E21B49/008 ,  G01V7/02

Abstract: Gravity surveys of subterranean formations may be based on the simultaneous measurement of gravity and its derivatives to produce a higher resolution formation map or wellbore log. For example, a method of performing a gravity survey may include positioning a matter wave interferometer relative to a subterranean formation; producing at least one cloud of atoms in the matter wave interferometer; producing a superposition of atoms in two different, spatially separated superimposed clouds from each of the at least one cloud of atoms; propagating the two different, spatially separated superimposed clouds along the matter wave interferometer as they with a gravitational field of the subterranean formation; combining the two different, spatially separated superimposed clouds with a Raman laser beam; measuring an interference produced by producing and combining the two different, spatially separated superimposed clouds; and calculating gravity for the gravitational field of the subterranean formation based on the interference.

Abstract translation: 地下地层的重力测量可基于同时测量重力及其衍生物以产生更高分辨率的地层图或井眼测井。 例如，执行重力测量的方法可以包括：将物质波干涉仪相对于地下地层定位; 在物质波干涉仪中产生至少一个原子云; 在来自所述至少一个原子云中的每一个的两个不同的，空间分离的叠加云中产生原子的叠加; 沿着物质波干涉仪传播两个不同的，空间分离的叠加云，因为它们具有地下地层的重力场; 将两个不同的，空间分离的叠加云与拉曼激光束组合; 测量通过产生和组合两个不同的空间分离的叠加云而产生的干扰; 并根据干扰计算地下地层引力场的重力。

公开(公告)号：WO2014106811A3

公开(公告)日：2015-02-26

申请号：PCT/IB2014000340

申请日：2014-01-06

Applicant: MUQUANS

Inventor： BOUYER PHILIPPE ,  LANDRAGIN ARNAUD ,  DESRUELLE BRUNO

IPC: G01V7/14 ,  G01V7/04

CPC classification number: G01V7/04 ,  G01V7/14

Abstract: A cold atom gravity gradiometer system includes a laser source that generates a laser beam that propagates along a propagation direction. The system further includes a reflector that reflects a portion of the laser beam and transmits another portion of the laser beam (the transmitted portion). A second reflector spatially separated from the first reflector along the propagation direction reflects the transmitted portion of the laser beam.

Abstract translation: 冷原子重力梯度计系统包括产生沿着传播方向传播的激光束的激光源。 该系统还包括反射激光束的一部分并透射激光束的另一部分（透射部分）的反射器。 沿着传播方向与第一反射器空间分离的第二反射器反射激光束的透射部分。

公开(公告)号：WO2014106811A2

公开(公告)日：2014-07-10

申请号：PCT/IB2014/000340

申请日：2014-01-06

Applicant: MUQUANS

Inventor： BOUYER, Philippe ,  LANDRAGIN, Arnaud ,  DESRUELLE, Bruno

IPC: G01V7/04

CPC classification number: G01V7/04 ,  G01V7/14

Abstract: A cold atom gravity gradiometer system includes a laser source that generates a laser beam that propagates along a propagation direction. The system further includes a reflector that reflects a portion of the laser beam and transmits another portion of the laser beam (the transmitted portion). A second reflector spatially separated from the first reflector along the propagation direction reflects the transmitted portion of the laser beam.

Abstract translation: 冷原子重力梯度计系统包括产生沿着传播方向传播的激光束的激光源。 该系统还包括反射激光束的一部分并透射激光束的另一部分（透射部分）的反射器。 沿着传播方向与第一反射器空间分离的第二反射器反射激光束的透射部分。

公开(公告)号：WO2008061273A1

公开(公告)日：2008-05-29

申请号：PCT/AU2007/001143

申请日：2007-08-14

Applicant: TECHNOLOGICAL RESOURCES PTY LIMITED ,  VAN KANN, Frank, Joachim

Inventor： VAN KANN, Frank, Joachim

IPC: G01V7/16

CPC classification number: G01V7/04

Abstract: The present invention provides a gravity gradiometer for measuring components of the gravity gradient tensor. The gravity gradiometer comprises at least one sensor mass for movement in response to a gravity gradient and a sensor and actuator unit for generating an electrical signal in response to the movement of the at least one sensor mass and for influencing the movement of the at least one sensor mass. The gravity gradiometer also comprises an electronic circuit for simulating an impedance. The electrical circuit is arranged for amplifying the electrical signal received from the sensor and actuator unit and for directing an actuating signal to the sensor and actuator unit. The electronic circuit comprises a differential amplifiers having first and second amplifier input terminals and an amplifier output terminal and impedances Z 1 , Z 2 , Z 3 , at least one of the impedances have an imaginary impedance component.

Abstract translation: 本发明提供一种用于测量重力梯度张量的分量的重力梯度计。 重力梯度计包括响应于重力梯度而移动的至少一个传感器质量块，以及用于响应于至少一个传感器质量块的运动而产生电信号并用于影响至少一个传感器块的移动的传感器和致动器单元 传感器质量。 重力梯度计还包括用于模拟阻抗的电子电路。 电路被布置用于放大从传感器和致动器单元接收的电信号，并将致动信号引导到传感器和致动器单元。 电子电路包括具有第一和第二放大器输入端子和放大器输出端子和阻抗Z 1，Z 2，Z 3 3的差分放大器， 阻抗中的至少一个具有假想阻抗分量。

公开(公告)号：WO2016019020A1

公开(公告)日：2016-02-04

申请号：PCT/US2015/042666

申请日：2015-07-29

Applicant: BAKER HUGHES INCORPORATED

Inventor： CSUTAK, Sebastian

IPC: E21B47/00 ,  G01V7/02 ,  E21B49/00

CPC classification number: G01V7/04

Abstract: An apparatus for estimating gravitational properties includes an optical source, a first interferometer including a fixed reference reflector and a first reflector coupled to a first moveable mass, a second interferometer including the fixed reference reflector and a second reflector coupled to a second moveable mass, a first detector configured to detect a first interference pattern generated by the first interferometer, and a second detector configured to detect a second interference pattern generated by the second interferometer. The first mass is configured to move a first amount in response to a change in gravitational force, and the second mass is configured to move a second amount in response to a change in gravitational force, the second amount being smaller than the first amount. The apparatus also includes a processor configured to estimate the change in gravitational force based on a combination of the first and second interference patterns.

Abstract translation: 用于估计重力特性的装置包括光源，包括固定参考反射器的第一干涉仪和耦合到第一可移动质量块的第一反射器，包括固定参考反射器的第二干涉仪和耦合到第二可移动质量块的第二反射器， 第一检测器，其被配置为检测由所述第一干涉仪产生的第一干涉图案;以及第二检测器，被配置为检测由所述第二干涉仪产生的第二干涉图案。 第一质量块构造成响应于重力的变化而移动第一量，并且第二质量被配置为响应于重力的变化而移动第二量，第二量小于第一量。 该装置还包括配置成基于第一和第二干涉图案的组合来估计重力变化的处​​理器。

公开(公告)号：WO2015108433A1

公开(公告)日：2015-07-23

申请号：PCT/RU2014/000012

申请日：2014-01-14

Applicant: BAKER HUGHES INCORPORATED ,  DASHEVSKY, Yuliy Aleksandrovich ,  MAKAROV, Alexandr Igorevich ,  VASILEVSKIY, Aleksandr Nikolaevich ,  DYATLOV, Gleb Vladimirovich

Inventor： DASHEVSKY, Yuliy Aleksandrovich ,  VASILEVSKIY, Aleksandr Nikolaevich ,  DYATLOV, Gleb Vladimirovich

IPC: G01V11/00 ,  E21B47/10

CPC classification number: G01V3/20 ,  E21B43/20 ,  E21B47/10 ,  G01V3/34 ,  G01V3/38 ,  G01V7/04 ,  G01V11/00

Abstract: A method for estimating a displacement of a fluid-to-hydrocarbon interface in a reservoir in the earth includes: disposing an electrode in an injector borehole that is 5 configured to inject a fluid into the reservoir; energizing the electrode with a voltage source to apply a voltage to the reservoir; disposing an electric field sensor in the injector borehole; disposing a gravity sensor in at least one of the injector borehole and a producer borehole that is offset a distance L from the injector borehole; injecting fluid into the reservoir; measuring a magnitude of a time-varying electric 10 field due to the injecting using the electric field sensor to provide electric field measurements; measuring a magnitude of a time-varying gravitational field due to the injecting using the gravity sensor to provide gravitational field measurements; and estimating the displacement using the electric field measurements and the gravitational field measurements.

Abstract translation: 一种用于估计地球中的储层中的流体与烃界面的位移的方法包括：将电极设置在喷射器钻孔中，所述喷射器钻孔被配置成将流体注入到所述储存器中; 用电压源激励电极以向蓄电池施加电压; 在喷射器钻孔中设置电场传感器; 将重力传感器设置在喷射器钻孔和从喷射器钻孔偏移距离L的生产井眼中的至少一个中; 将液体注入储存器; 测量由于使用电场传感器的注入而导致的时变电10场的幅度以提供电场测量; 测量由于使用重力传感器的注入而引起的时变引力场的大小以提供重力场测量; 并使用电场测量和重力场测量来估计位移。

公开(公告)号：WO2015103608A1

公开(公告)日：2015-07-09

申请号：PCT/US2015/010318

申请日：2015-01-06

Applicant: LOCKHEED MARTIN CORPORATION ,  MEYER, Thomas J.

Inventor： MEYER, Thomas J.

IPC: G01V7/00 ,  G01V7/02 ,  G01V7/08 ,  G01V7/16

CPC classification number: G01V7/16 ,  F16C32/0614 ,  F16C32/0696 ,  F16C2370/00 ,  G01V7/04 ,  G01V7/08

Abstract: A non-contacting spherical air bearing-based stable platform for use by a gravity gradiometer instrument (GGI) is provided by attaching a spherical ball-shaped bearing to a rotational stage of the GGI and integrating a concave spherical cup in the linear stage and mounting base assembly of the GGI which is fixedly attached to a host vehicle or platform. The spherical cup supports the spherical ball-shaped bearing on a thin cushion of air provided by a source of compressed air or gas at the concave surface of the spherical cup. The spherical ball-shaped bearing is supported, providing three degrees of rotational freedom of motion without the need for slip rings, flex capsules, races, or mechanical bearings, thereby reducing or eliminating gradient disturbance signals owing to parasitic torques and jitter in the output of the accelerometers of the GGI.

Abstract translation: 通过将球形球形轴承安装到GGI的旋转台上，并将凹球面杯整合到线性平台中并安装在一起，提供了一种用于重力梯度计（GGI）的非接触球形空气轴承的稳定平台 GGI的基座组件固定地连接到主车辆或平台。 球形杯将球形球轴承支撑在由球形杯的凹面处的压缩空气或气体源提供的薄的空气缓冲垫上。 支撑球形球形轴承，提供三度的旋转运动自由度，而不需要滑环，柔性胶囊，座圈或机械轴承，从而减少或消除由于寄生扭矩和输出中的抖动引起的梯度扰动信号 GGI的加速度计。

公开(公告)号：WO2008061284A1

公开(公告)日：2008-05-29

申请号：PCT/AU2007/001182

申请日：2007-08-17

Applicant: TECHNOLOGICAL RESOURCES PTY LIMITED ,  VAN KANN, Frank, Joachim ,  WINTERFLOOD, John

Inventor： VAN KANN, Frank, Joachim ,  WINTERFLOOD, John

IPC: G01V7/16

CPC classification number: G01V7/04

Abstract: A gravity gradiometer is described which comprises a pair of sensor bars (41, 43) arranged in housings (45, 47). Transducers (71) are arranged adjacent the bars (41, 43) for measuring movement of the bars in response to the gravity gradient tensor. At least one of the transducers has a sensing coil (510) and a capacitor plate (518a) having a concentric arrangement with the sensing coil (510) for providing one plate of a capacitor used in a balancing circuit for measuring the balance of the sensor mass.

Abstract translation: 描述了一种重力梯度计，其包括布置在壳体（45,47）中的一对传感器杆（41,43）。 传感器（71）布置成邻近杆（41,43），用于响应于重力梯度张量来测量杆的运动。 换能器中的至少一个具有感测线圈（510）和与感测线圈（510）同心配置的电容器板（518a），用于在用于测量传感器的平衡的平衡电路中使用的电容器的一个板 质量。