公开(公告)号：US09702855B2

公开(公告)日：2017-07-11

申请号：US14472367

申请日：2014-08-29

Applicant: Baker Hughes Incorporated

Inventor： Wei Han ,  Rocco DiFoggio

IPC: G01N29/00 ,  G01D5/12 ,  G01N29/28

CPC classification number: G01N29/28

Abstract: A system is provided including an acoustic interface device, configured for coupling to a transducer and to a specimen, the acoustic interface device comprising a material composition having a shear wave attenuation coefficient αS of at least about 5 dB/cm when subjected to an acoustic signal at a frequency between about 200 to 500 kHz. The acoustic interface device may be formed of polytetrafluoroethylene (Teflon®), a perfluoroalkoxy alkane (PFA), polycarbonate (Lexan®), or polyether ether ketone (PEEK). Methods of using the acoustic interface device with a transducer for ultrasonic measurement of a specimen are also disclosed.

公开(公告)号：US09594057B2

公开(公告)日：2017-03-14

申请号：US14160084

申请日：2014-01-21

Applicant: Baker Hughes Incorporated

Inventor： Rocco DiFoggio

IPC: G01N29/028 ,  E21B47/10 ,  G01N29/024

CPC classification number: G01N29/028 ,  E21B47/101 ,  G01N29/024 ,  G01N2291/02818 ,  G01N2291/044

Abstract: Methods, systems, and devices for estimating a parameter of interest of a downhole fluid. Methods may include using at least two solid acoustic transmission media, including a first media and a second media having different acoustic impedances and each having a corresponding face immersed in the downhole fluid. Methods may include using a reflection of an acoustic pulse from a solid-liquid interface at the corresponding face of the first media and the second media to estimate the parameter of interest. The sound speed and the acoustic impedance of the first media and the sound speed and the acoustic impedance of the second media may each be different than a sound speed and an acoustic impedance of the fluid and each other. The parameter of interest may be estimated independently of a time of flight in the downhole fluid of any acoustic pulses.

Abstract translation: 用于估计井下流体感兴趣的参数的方法，系统和装置。 方法可以包括使用至少两个固体声学传播介质，包括具有不同声阻抗的第一介质和第二介质，并且每个具有浸入井下流体中的相应面。 方法可以包括使用来自第一介质和第二介质的相应面处的固 - 液界面的声脉冲的反射来估计感兴趣的参数。 第一介质的声速和声阻抗以及第二介质的声速和声阻抗可以各自不同于流体的声速和声阻抗。 感兴趣的参数可以独立于任何声学脉冲的井下流体中的飞行时间来估计。

公开(公告)号：US09506338B2

公开(公告)日：2016-11-29

申请号：US13927809

申请日：2013-06-26

Applicant: Baker Hughes Incorporated

Inventor： Rocco DiFoggio

IPC: E21B47/06 ,  E21B47/01 ,  G01V11/00

CPC classification number: E21B47/011 ,  G01V11/002

Abstract: Methods, systems, devices, and products for taking a downhole measurement are presented. The method may include cooling a sensor in a borehole intersecting an earth formation using an electrocaloric material associated with the sensor, wherein the sensor is responsive to a downhole parameter. The method may further include applying an electric field to the electrocaloric material to generate a giant electrocaloric effect. The method may include selecting dimensions, composition, and Curie temperature of the electrocaloric material and characteristics of the electric field sufficient to reduce the nominal temperature of the sensor by at least 20 degrees Celsius, which may result in the sensor being proximate to a target temperature within the nominal operational temperature range of the sensor.

Abstract translation: 介绍了井下测量的方法，系统，设备和产品。 该方法可以包括使用与传感器相关的电热材料来冷却与地层相交的钻孔中的传感器，其中传感器响应于井下参数。 该方法还可以包括将电场施加到电加热材料以产生巨大的电热效应。 该方法可以包括选择电热材料的尺寸，组成和居里温度以及电场的特性足以将传感器的标称温度降低至少20摄氏度，这可导致传感器接近目标温度 在传感器的标称工作温度范围内。

公开(公告)号：US20160061629A1

公开(公告)日：2016-03-03

申请号：US14472367

申请日：2014-08-29

Applicant: Baker Hughes Incorporated

Inventor： Wei Han ,  Rocco DiFoggio

IPC: G01D5/12 ,  G01N29/00

CPC classification number: G01N29/28

Abstract: A system is provided including an acoustic interface device, configured for coupling to a transducer and to a specimen, the acoustic interface device comprising a material composition having a shear wave attenuation coefficient as of at least about 5 dB/cm when subjected to an acoustic signal at a frequency between about 200 to 500 kHz. The acoustic interface device may be formed of polytetrafluoroethylene (Teflon®), a perfluoroalkoxy alkane (PFA), polycarbonate (Lexan®), or polyether ether ketone (PEEK). Methods of using the acoustic interface device with a transducer for ultrasonic measurement of a specimen are also disclosed.

Abstract translation: 提供了一种系统，包括声学接口装置，被配置为耦合到换能器和试样，所述声学接口装置包括当经受声信号时具有至少约5dB / cm的剪切波衰减系数的材料组合物 在约200至500kHz之间的频率。 声学接口装置可以由聚四氟乙烯（Teflon），全氟烷氧基烷烃（PFA），聚碳酸酯（Lexan）或聚醚醚酮（PEEK））形成。 还公开了使用声学接口装置与用于样品的超声波测量的换能器的方法。