公开(公告)号：US20180209268A1

公开(公告)日：2018-07-26

申请号：US15926506

申请日：2018-03-20

申请人： Halliburton Energy Services, Inc.

发明人： Li Gao ,  Wei Zhang ,  Michael T. Pelletier ,  Christopher Michael Jones ,  Dingding Chen ,  David Earl Ball

IPC分类号： E21B49/08 ,  E21B47/10 ,  G01N11/14 ,  G01N27/74 ,  G01N11/16

CPC分类号： E21B49/08 ,  E21B47/10 ,  E21B2049/085 ,  G01N11/14 ,  G01N11/162 ,  G01N27/74 ,  G01N2011/147 ,  G01N2203/0676

摘要： An apparatus to determine fluid viscosities downhole in real-time includes a housing and an excitation element positioned therein. Electrical circuitry provides a drive signal that excites an excitation element into rotational oscillations. A detector produces a response signal correlating to the detected oscillating movement of the excitation element. Circuitry onboard the apparatus utilizes the drive and response signals to determine the fluid viscosity.

公开(公告)号：US10031058B2

公开(公告)日：2018-07-24

申请号：US14826934

申请日：2015-08-14

申请人： International Business Machines Corporation

发明人： Oki Gunawan ,  Yudistira Virgus

IPC分类号： G01N11/16 ,  G01N27/00 ,  G01N11/14

摘要： Techniques for gas analysis using a parallel dipole line (PDL) trap viscometer are provided. In one aspect, a gas analysis system is provided which includes: a PDL trap including: a pair of diametric cylindrical magnets, and a diamagnetic rod levitating above the magnets; and a motion detector for capturing motion of the diamagnetic rod. The motion detector can include a digital video camera positioned facing a top of the PDL trap so as to permit capturing video images of the diamagnetic rod and the system can include a computer for receiving and analyzing video images from the video camera. Methods for measuring gas viscosity and pressure using the PDL trap system are also provided.

公开(公告)号：US20180172573A1

公开(公告)日：2018-06-21

申请号：US15738865

申请日：2016-06-30

申请人： Hydramotion Limited

发明人： John Gallagher

IPC分类号： G01N11/16 ,  G01F1/84

CPC分类号： G01N11/167 ,  G01F1/8413 ,  G01F1/849 ,  G01N2011/0073

摘要： Apparatus for the measurement of a fluid property is shown generally at (10). The apparatus is typically suitable for the measurement of a property of a fluid (not shown) such as its viscosity, and comprises a tube (12) for the through-flow of fluid to be measured, a torsion bar (14), a magnetic drive coil (16) and a magnetic pick-up coil (18). The tube (12) is mounted within a casing (20), shown in cutaway. An inertial frame (22) is secured to the casing via isolators (not shown). The tube (12) has a web portion (24) supporting inertial masses (26) connected to, and radially spaced from, the tube (12). The tube is connected at each end to pipe fittings (28) via end flanges (30) and seals (32). The single tube (12) has been selectively machined to produce areas (12a) of low compliance which effectively form springs. The torsion bar (14) is of relatively low inertia and is fixed at the midpoint of the length of the tube (12). The mass system (24, 26) is of much higher inertia and is fixed to the tube (12) as shown. The tube (12) is then fixed in frame (22) which is of even higher inertia, and held in place in casing (20) by means of fixing supports (not shown).

公开(公告)号：US09995715B2

公开(公告)日：2018-06-12

申请号：US14685365

申请日：2015-04-13

申请人： Rheonics GmbH

发明人： Joseph H. Goodbread

IPC分类号： G01N11/16 ,  G01N29/036 ,  G01N29/24 ,  G01D5/20

CPC分类号： G01N29/036 ,  G01D5/2006 ,  G01N11/16 ,  G01N11/162 ,  G01N29/2412 ,  G01N2291/014 ,  G01N2291/02818 ,  G01N2291/0426 ,  G01N2291/101

摘要： A fluid properties measurement device, including a magnetically excited and sensed resonator and a resonator electromagnetic excitation assembly, including an excitation coil driven by an electrical network, electrically connected to the excitation coil. The excitation coil is positioned so that a varying magnetic field produced by the excitation coil will drive the resonator in a pattern of resonating movement that has predetermined characteristics. Also, an electromagnetic sensing assembly, including a gradiometric sense coil is positioned so that an electromagnetic field originating due to movement of the resonator in a pattern having the predetermined characteristics, will create a time-varying gradient across the sense coil. Finally, a signal sensing electrical network is electrically connected to the sense coil.

公开(公告)号：US09983110B2

公开(公告)日：2018-05-29

申请号：US14532907

申请日：2014-11-04

申请人： THE REGENTS OF THE UNIVERSITY OF MICHIGAN

发明人： Raoul Kopelman ,  Mark A. Burns ,  Yunzi Li

IPC分类号： C12Q1/68 ,  G01N11/16 ,  G01N11/10 ,  G01N11/00

CPC分类号： G01N11/165 ,  C12Q1/6816 ,  G01N11/10 ,  G01N2011/0086 ,  C12Q2527/153 ,  C12Q2563/137

摘要： The disclosure provides a label-free viscosity-based analyte detection system using paramagnetic beads as an asynchronous magnetic bead rotation (AMBR) microviscometer. It is disclosed herein that the bead rotation period is linearly proportional to the viscosity of a solution comprising analytes surrounding the paramagnetic bead. Optical measurement of asynchronous microbead motion determines solution viscosity precisely in microscale volumes, thus allowing an estimate of analyte concentration. The results demonstrate the feasibility of viscosity-based analyte detection using AMBR in microscale aqueous volumes.

公开(公告)号：US09857280B2

公开(公告)日：2018-01-02

申请号：US14650026

申请日：2013-12-06

申请人： C A Casyso AG

发明人： Heinz Redl ,  Johannes Zipperle ,  Wolfgang Holnthoner ,  Christoph Schlimp ,  Herbert Schochl

IPC分类号： G01N11/16 ,  G01N33/49 ,  G01N33/50 ,  G01N33/86

CPC分类号： G01N11/16 ,  G01N33/49 ,  G01N33/5064 ,  G01N33/86

摘要： This disclosure provides a method for measuring coagulation of blood or plasma samples using viscoelastic tests (VET) wherein the measuring is performed in the presence of immobilized endothelial cells.

公开(公告)号：US20170241884A1

公开(公告)日：2017-08-24

申请号：US15519215

申请日：2015-10-08

申请人： Alpha Technologies Services LLC

发明人： Matthew S. McMaster ,  Keith Buzek ,  William Roblin

IPC分类号： G01N11/16 ,  G01N33/44

CPC分类号： G01N11/162 ,  G01N33/442

摘要： The present application relates generally rheometers. In one aspect, misalignment of the air cylinder with respect to the cross-head is accommodated using a flexible coupling between the air cylinder and the cross-head so as to prevent binding and stuttering of the machine due to misalignment.

公开(公告)号：US09671516B2

公开(公告)日：2017-06-06

申请号：US13543393

申请日：2012-07-06

申请人： Lalitha Venkataramanan ,  Tarek M. Habashy ,  Denise E. Freed

发明人： Lalitha Venkataramanan ,  Tarek M. Habashy ,  Denise E. Freed

IPC分类号： G01V3/32 ,  G01V3/14 ,  G01N11/16 ,  G01R33/44

CPC分类号： G01N24/081 ,  G01N11/16 ,  G01R33/448 ,  G01V3/14 ,  G01V3/32

摘要： Methods and related systems are described for estimating fluid or rock properties from NMR measurements. A modified pulse sequence is provided that can directly provide moments of relaxation-time or diffusion distributions. This pulse sequence can be adapted to the desired moment of relaxation-time or diffusion coefficient. The data from this pulse sequence provides direct estimates of fluid properties such as average chain length and viscosity of a hydrocarbon. In comparison to the uniformly-spaced pulse sequence, these pulse sequences are faster and have a lower error bar in computing the fluid properties.

公开(公告)号：US09645117B2

公开(公告)日：2017-05-09

申请号：US14409265

申请日：2013-05-21

申请人： SEIKO INSTRUMENTS INC.

发明人： Sachiko Tanabe ,  Masayuki Suda ,  Hiroshi Muramatsu

IPC分类号： G01N29/02 ,  G01N11/16 ,  G01N29/028 ,  H01L41/047 ,  H03H9/15 ,  H03H9/25 ,  H03H9/17 ,  G01N5/02 ,  G01N9/34

CPC分类号： G01N29/022 ,  G01N5/02 ,  G01N9/34 ,  G01N11/16 ,  G01N29/028 ,  G01N2291/022 ,  G01N2291/0256 ,  G01N2291/02818 ,  G01N2291/0422 ,  G01N2291/0426 ,  H01L41/047 ,  H03H9/15 ,  H03H9/177 ,  H03H9/25

摘要： A piezoelectric unit 1 includes a piezoelectric element that causes thickness shear vibration, a first electrode provided on one surface of the piezoelectric element, a second electrode and a third electrode which are provided on an opposite surface to the one surface which is provided with the first electrode of the piezoelectric element and are electrically insulated from each other, and a switching portion that is connected to the first electrode, the second electrode, and the third electrode, in which the switching portion can switch measurement modes between a mass/viscoelasticity measurement mode for measuring mass of a substance which is in contact with the piezoelectric element or viscoelasticity by vibrating the piezoelectric element, and an electrical characteristic measurement mode for measuring electrical characteristics between the second electrode and the third electrode.

公开(公告)号：US09562840B2

公开(公告)日：2017-02-07

申请号：US14593454

申请日：2015-01-09

申请人： CAMBRIDGE VISCOSITY, INC.

发明人： Janusz Tabis ,  Peter O'Shea ,  Daniel A. Airey ,  Viachaslau Urvantsau

IPC分类号： G01N11/16 ,  G01N11/10 ,  G01D5/20

CPC分类号： G01N11/162 ,  G01D5/204 ,  G01N11/10

摘要： A high precision, reciprocating bob viscometer is shown that has two coils (A and B) encircling a reciprocating bob. Coil A is energized with a combined sinusoidal and DC signal, while coil B senses the position of the reciprocating bob, then the functions of coils A and B are reversed. By use of a large digitally-generated near resonance frequency sinusoidal signal, noise is reduced because there is no need for amplification. The sensed signal amplitude measurement is in the digital time domain instead of through analog amplitude measurements, which further eliminates signal noise. These advancements provide faster, highly accurate, low noise measurements of bob position and velocity to determine fluid/gas viscosity and related properties using a reciprocating bob viscometer. These related properties include measurements of density, shear sensitivity, yield stress, and other measurements described in prior art patents.

摘要翻译： 显示了一种高精度的往复式摇杆粘度计，其具有包围往复摆锤的两个线圈（A和B）。 线圈A用组合的正弦和直流信号通电，而线圈B感测往复摆锤的位置，则线圈A和B的功能相反。 通过使用大量数字产生的近共振频率正弦信号，由于不需要放大，噪声降低。 感测的信号幅度测量是数字时域，而不是通过模拟幅度测量，这进一步消除了信号噪声。 这些进步提供了更快，高精度，低噪音的鲍勃位置和速度测量，以确定流体/气体粘度和相关性能，使用往复式鲍姆粘度计。 这些相关性质包括现有技术专利中描述的密度，剪切敏感性，屈服应力和其它测量的测量。