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1. 发明授权

US07901555B2 Electro-chemical sensor 有权
标题翻译：电化学传感器
公开(公告)号：US07901555B2
公开(公告)日：2011-03-08
申请号：US10585263
申请日：2004-12-22
申请人： Li Jiang , Timothy Gareth John Jones , Richard Compton , Nathan Lawrence , Gregory George Wildgoose , Malingappagari Pandurangappa , Oliver Clinton Mullins , Andrew Meredith
发明人： Li Jiang , Timothy Gareth John Jones , Richard Compton , Nathan Lawrence , Gregory George Wildgoose , Malingappagari Pandurangappa , Oliver Clinton Mullins , Andrew Meredith
IPC分类号： G01N27/333 , E21B47/00 , E21B49/00
CPC分类号： G01N27/308 , E21B47/10 , G01N27/302 , G01N27/3335
摘要： An electro-chemical sensor is described having two molecular redox systems sensitive to the same species and having an detector to detect relative shifts in the voltammograms of the two redox systems.
摘要翻译：描述了一种电化学传感器，其具有对相同物质敏感的两个分子氧化还原系统，并且具有检测器以检测两个氧化还原体系的伏安图的相对位移。

2. 发明申请

US20080023328A1 ELECTRO-CHEMICAL SENSOR 有权
标题翻译：电化学传感器
公开(公告)号：US20080023328A1
公开(公告)日：2008-01-31
申请号：US11781546
申请日：2007-07-23
申请人： Li Jiang , Timothy Jones , Richard Compton , Nathan Lawrence , Gregory Wildgoose , Malingappagari Pandurangappa , Oliver Mullins , Andrew Meredith , Markus Pagels
发明人： Li Jiang , Timothy Jones , Richard Compton , Nathan Lawrence , Gregory Wildgoose , Malingappagari Pandurangappa , Oliver Mullins , Andrew Meredith , Markus Pagels
IPC分类号： G01N27/27
CPC分类号： G01N27/308 , E21B47/10 , G01N27/302 , G01N27/3335
摘要： An electro-chemical sensor is described having one or more redox species sensitive to a certain analyte and one or more redox species that are insensitive to that analyte, for the purpose of making measurements in a downhole environment in aquifers or oilfield reservoirs.
摘要翻译：描述了一种电化学传感器，其具有对特定分析物敏感的一种或多种氧化还原物质和对该分析物不敏感的一种或多种氧化还原物质，用于在含水层或油田储层中的井下环境中进行测量。

3. 发明申请

US20070272552A1 Electro-Chemical Sensor 有权
标题翻译：电化学传感器
公开(公告)号：US20070272552A1
公开(公告)日：2007-11-29
申请号：US10585263
申请日：2004-12-22
申请人： Li Jiang , Timothy Jones , Richard Compton , Nathan Lawrence , Gregory Wildgoose , Malingappagari Pandurangappa , Oliver Mullins , Andrew Meredith
发明人： Li Jiang , Timothy Jones , Richard Compton , Nathan Lawrence , Gregory Wildgoose , Malingappagari Pandurangappa , Oliver Mullins , Andrew Meredith
IPC分类号： G01N27/416 , G01N33/28
CPC分类号： G01N27/308 , E21B47/10 , G01N27/302 , G01N27/3335
摘要： An electro-chemical sensor is described having two molecular redox systems sensitive to the same species and having an detector to detect relative shifts in the voltammograms of the two redox systems.
摘要翻译：描述了一种电化学传感器，其具有对相同物质敏感的两个分子氧化还原系统，并且具有检测器以检测两个氧化还原体系的伏安图的相对位移。

4. 发明申请

US20060054501A1 Methods and apparatus for the measurement of hydrogen sulphide and thiols in fuids 审中-公开
标题翻译：用于丈量硫酸氢和硫醇的测量方法和装置
公开(公告)号：US20060054501A1
公开(公告)日：2006-03-16
申请号：US10522350
申请日：2003-07-10
申请人： Li Jiang , Timothy Jones , Nathan Lawrence , Mary Thompson , Richard Compton
发明人： Li Jiang , Timothy Jones , Nathan Lawrence , Mary Thompson , Richard Compton
IPC分类号： G01N33/24
CPC分类号： G01N33/0044 , E21B49/10 , G01N27/49
摘要： An electrochemical sensor for measuring the amount of hydrogen sulphide or thiols in a fluid comprises an electrically conductive porous electrode within which are dispersed a precursor and a reaction solution which together with the hydrogen sulphide or thiols a redox reaction resulting in an electrical current dependent upon the amount of hydrogen sulphide or thiols in the fluid. The reaction solution may be initially provided in the pores of the porous electrode, or derived in use from the fluid itself.
摘要翻译：用于测量流体中硫化氢或硫醇的量的电化学传感器包括导电多孔电极，其中分散有前体和反应溶液，其与硫化氢或硫醇一起进行氧化还原反应，导致电流取决于流体中的硫化氢或硫醇的量。反应溶液可以最初设置在多孔电极的孔中，或者在使用中从流体本身获得。

5. 发明申请

US20120064632A1 ELECTRO-CHEMICAL SENSOR 有权
标题翻译：电化学传感器
公开(公告)号：US20120064632A1
公开(公告)日：2012-03-15
申请号：US13062788
申请日：2009-08-26
申请人： Kay Robinson , Nathan Lawrence , Andrew Meredith
发明人： Kay Robinson , Nathan Lawrence , Andrew Meredith
IPC分类号： G01N33/20 , G01N30/00
CPC分类号： G01N33/24
摘要： The present invention provides an electrochemical sensor having a solid electrically conductive substrate and a compound immobilized thereon which has binding affinity for an analyte species to be detected and also displays electrochemical behaviour which is modified upon binding of that analyte species, so that binding of an analyte species can be detected by measuring electrochemical properties, such as by voltammetry. Desirably the immobilised compound contains both a first moiety with binding affinity for the analyte and a separate second moiety which is a redox system whose electrochemical oxidation/reduction properties become modified when the first moiety binds the analyte. The analyte binding moiety may be a diol or polyol and preferably is a sugar. The electrochemical sensor finds use in methods of analysing reservoir and process fluids, particularly at a subterranean location. The electrochemical sensor may be a component of a downhole tool, adapted for deployment downhole.
摘要翻译：本发明提供一种电化学传感器，其具有固体导电基质和固定在其上的化合物，其对待检测的分析物种具有结合亲和力，并且还显示在该分析物种结合时修饰的电化学行为，使得分析物可以通过测量电化学性质例如通过伏安法来检测物种。理想地，固定化的化合物含有对分析物具有结合亲和力的第一部分和分开的第二部分，其是当第一部分结合分析物时其电化学氧化/还原性质变得改变的氧化还原体系。分析物结合部分可以是二醇或多元醇，优选是糖。电化学传感器用于分析储层和工艺流体的方法，特别是在地下位置。电化学传感器可以是井下工具的组件，适用于井下部署。

6. 发明申请

US20080035481A1 Electrochemical Sensors 审中-公开
标题翻译：电化学传感器
公开(公告)号：US20080035481A1
公开(公告)日：2008-02-14
申请号：US10591491
申请日：2005-03-04
申请人： Sean McCormack , Richard Compton , Gregory Wildgoose , Nathan Lawrence
发明人： Sean McCormack , Richard Compton , Gregory Wildgoose , Nathan Lawrence
IPC分类号： G01N27/26 , C01B31/02
CPC分类号： C01B32/174 , B82Y15/00 , B82Y30/00 , B82Y40/00 , C01B32/05 , C01B32/20 , G01N27/308
摘要： An electrode for use in a electrochemical sensor comprises carbon modified with a chemically sensitive redox-active compound, excluding an electrode based on carbon having derivatised thereon two redox-active species wherein at least one of said species is selected from anthraquinone, phenanthrenequinone and N,N′-diphenyl-p-phenylenediamine (DPPD). The invention further provides a pH sensor comprising: a working electrode comprising carbon modified with a chemically sensitive redox active material; and a counter electrode, wherein the ratio of the surface area of the working electrode to the surface area of the counter electrode is from 1:10 to 10:1. Also provided is a pH sensor comprising: a working electrode comprising carbon modified with a chemically sensitive redox active material, and a counter electrode, wherein the area of the working electrode is from 500 μm2 to 0.1 m2. The uses of these electrodes and sensors are also described.
摘要翻译：用于电化学传感器的电极包括用化学敏感的氧化还原活性化合物改性的碳，不包括基于其上衍生有两种氧化还原活性物质的碳的电极，其中至少一种所述物质选自蒽醌，菲醌和N， N'-二苯基对苯二胺（DPPD）。本发明还提供一种pH传感器，其包括：工作电极，其包含用化学敏感的氧化还原活性材料改性的碳; 和相对电极，其中工作电极的表面积与对电极的表面积之比为1:10至10:1。还提供了一种pH传感器，包括：包含用化学敏感的氧化还原活性材料改性的碳的工作电极和对电极，其中工作电极的面积为500μm2〜0.1μm， SUP> 2 。还描述了这些电极和传感器的用途。

7. 发明申请

US20140060840A1 ALTERING A COMPOSITION AT A LOCATION ACCESSED THROUGH AN ELONGATE CONDUIT 审中-公开
标题翻译：通过一个最近的连接在一个位置改变一个组成
公开(公告)号：US20140060840A1
公开(公告)日：2014-03-06
申请号：US14116567
申请日：2012-05-10
申请人： Robert Seth Hartshorne , Andrew Meredith , Nathan Lawrence
发明人： Robert Seth Hartshorne , Andrew Meredith , Nathan Lawrence
IPC分类号： C09K8/58
CPC分类号： C09K8/58 , C09K8/685 , C09K8/805 , E21B41/00
摘要： A composition flowing along an elongate conduit to a location accessed by that conduit contains a precursor substance which, arriving at the location, is converted electrochemically to chemically reactive intermediate. This intermediate reacts with another constituent of the composition, thereby bringing about a change in the composition. The reactive intermediate may be a cross-linking agent for a polymeric constituent of the composition so that the electrochemical reaction and subsequent cross-linking increases the viscosity of the composition as it arrives at the location where it is required.
摘要翻译：沿着细长管道流动到由该管道接近的位置的组合物含有前体物质，其到达该位置时被电化学转化为化学反应中间体。该中间体与组合物的另一成分反应，从而导致组合物的变化。反应性中间体可以是用于组合物的聚合物组分的交联剂，使得当组合物到达需要的位置时，电化学反应和随后的交联增加了组合物的粘度。

8. 发明申请

US20130256133A1 ELECTROCHEMICAL SENSOR 审中-公开
标题翻译：电化学传感器
公开(公告)号：US20130256133A1
公开(公告)日：2013-10-03
申请号：US13883263
申请日：2011-10-20
申请人： Nathan Lawrence , Andrew Meredith
发明人： Nathan Lawrence , Andrew Meredith
IPC分类号： G01N27/30
CPC分类号： G01N27/30 , G01N27/302 , G01N27/4167
摘要： A voltammetric pH sensor, especially for characterising wellbore fluids, comprises a plurality of electrodes with a redox active organic compound attached to an electrode and having at least one functional group convertible electrochemically between reduced and oxidized forms with transfer of at least one proton between the compound and surrounding aqueous phase, wherein the compound has at least one substituent group which promotes hydrogen bonding at a said functional group and thereby increases the reaction rate of proton transfer. The substituent group may form an internal hydrogen bond with a redox-convertible group or may enhance polarity to promote electrostatic interaction with water molecules and reduce activation energy. Typical examples include alizarin or 1,2-dihydroxy-anthraquinone (RH=72-48-0), quinizarin or 1,4-dihydroxy-anthraquinone (RN=81-64-1), 2-acetoxy-benzoquinone (RN=1125-55-9), chloranil or 2,3,4,5-tetrachloro-benzoquinone (RN=118-75-2) and 1,4-diamino-2,3-dichloro-anthraquinone (RN=81-42-5) deposited on a glassy carbon electrode. In this way, anomalous measurements at low ionic strength and low concentrations of pH buffering species can be overcome.
摘要翻译：特别是用于表征井筒流体的伏安pH传感器包括多个电极，其具有连接到电极上的氧化还原活性有机化合物，并且具有至少一个可在还原和氧化形式之间电化学转化的官能团，其中化合物之间至少一个质子转移和周围的水相，其中所述化合物具有至少一个在所述官能团上促进氢键的取代基，从而提高质子转移的反应速率。取代基可以与氧化还原可转换基团形成内部氢键，或者可以提高极性以促进与水分子的静电相互作用并降低活化能。典型实例包括茜素或1,2-二羟基 - 蒽醌（RH = 72-48-0），茜素或1,4-二羟基 - 蒽醌（RN = 81-64-1），2-乙酰氧基 - 苯醌（RN = 1125 -55-9），氯醌或2,3,4,5-四氯苯醌（RN = 118-75-2）和1,4-二氨基-2,3-二氯 - 蒽醌（RN = 81-42-5 ）沉积在玻璃碳电极上。以这种方式，可以克服在低离子强度和低浓度pH缓冲物种下的异常测量。

9. 发明申请

US20120132544A1 ELECTROCHEMICAL SENSOR 审中-公开
标题翻译：电化学传感器
公开(公告)号：US20120132544A1
公开(公告)日：2012-05-31
申请号：US13204166
申请日：2011-08-05
申请人： Nathan Lawrence , Andrew Meredith
发明人： Nathan Lawrence , Andrew Meredith
IPC分类号： G01N27/26 , G01N27/30
CPC分类号： G01N27/302 , G01N27/4167
摘要： An electrochemical sensor for measuring an analyte in a fluid, the electrochemical sensor having a first working electrode that includes a redox species sensitive to the analyte to be measured and a second working electrode made from a conducting substrate absent the redox species. The electrochemical sensor being capable of operation so that electrochemical effects of active contaminants in the fluid can be removed/attenuated from electrochemical signals produced by the reduction/oxidation of the redox species in the presence of the analyte.
摘要翻译：一种用于测量流体中的分析物的电化学传感器，所述电化学传感器具有第一工作电极，所述第一工作电极包括对待测量的分析物敏感的氧化还原物质，以及由不含氧化还原物质的导电基材制成的第二工作电极。电化学传感器能够进行操作，从而可以通过在分析物存在下由氧化还原物质的还原/氧化产生的电化学信号去除/减弱活性污染物在流体中的电化学效应。

10. 发明授权

US09005983B2 Electro-chemical sensor 有权
标题翻译：电化学传感器
公开(公告)号：US09005983B2
公开(公告)日：2015-04-14
申请号：US13062788
申请日：2009-08-26
申请人： Kay McGuinness , Nathan Lawrence , Andrew Meredith
发明人： Kay McGuinness , Nathan Lawrence , Andrew Meredith
IPC分类号： G01N33/20 , G01N30/00 , G01N33/24
CPC分类号： G01N33/24
摘要： The present invention provides an electrochemical sensor having a solid electrically conductive substrate and a compound immobilized thereon which has binding affinity for an analyte species to be detected and also displays electrochemical behavior which is modified upon binding of that analyte species, so that binding of an analyte species can be detected by measuring electrochemical properties, such as by voltammetry. Desirably the immobilized compound contains both a first moiety with binding affinity for the analyte and a separate second moiety which is a redox system whose electrochemical oxidation/reduction properties become modified when the first moiety binds the analyte. The analyte binding moiety may be a diol or polyol and preferably is a sugar. The electrochemical sensor finds use in methods of analyzing reservoir and process fluids, particularly at a subterranean location. The electrochemical sensor may be a component of a downhole tool, adapted for deployment downhole.
摘要翻译：本发明提供了一种电化学传感器，其具有固体导电基质和固定在其上的化合物，其对待检测的分析物种具有结合亲和力，并且还显示了在该分析物种结合时修饰的电化学行为，使得分析物可以通过测量电化学性质例如通过伏安法来检测物种。理想地，固定化的化合物含有对分析物具有结合亲和力的第一部分和分开的第二部分，其是当第一部分结合分析物时其电化学氧化/还原性质变得改变的氧化还原体系。分析物结合部分可以是二醇或多元醇，优选是糖。电化学传感器用于分析储层和工艺流体的方法，特别是在地下位置。电化学传感器可以是井下工具的组件，适用于井下部署。

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