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公开(公告)号：US07504618B2
公开(公告)日：2009-03-17
申请号：US11772997
申请日：2007-07-03
Applicant: Arthur H. Hartog , Gareth P. Lees
Inventor： Arthur H. Hartog , Gareth P. Lees
CPC classification number: G01J3/4412 , G01D5/35364 , G01K11/32
Abstract: To perform distributed sensing with an optical fiber using Brillouin scattering, a light pulse is transmitted into the optical fiber, where the transmitted light pulse has a first frequency. Backscattered light and optical local oscillator light are combined, where the backscattered light is received from the optical fiber in response to the transmitted light pulse, and where the optical local oscillator light has a second frequency. A frequency offset is caused to be present between the first frequency of the transmitted light pulse and the second frequency of the optical local oscillator light, where the frequency offset is at least 1 GHz less than a Brillouin frequency shift of the backscattered light. Spectra representing Stokes and anti-Stokes components of the backscattered light are acquired, where the Stokes and anti-Stokes components are separated by a frequency span that is based on the frequency offset.
Abstract translation: 为了使用布里渊散射使用光纤执行分布式感测，将光脉冲传输到光纤中，其中透射光脉冲具有第一频率。 组合后向散射光和光学本地振荡器光，其中响应于透射的光脉冲从光纤接收反向散射光，并且其中光学本地振荡器光具有第二频率。 使得频率偏移存在于透射光脉冲的第一频率和光学本地振荡器光的第二频率之间，其中频偏比背散射光的布里渊频移小至少1GHz。 获取表示反向散射光的斯托克斯和反斯托克斯分量的光谱，其中斯托克斯和反斯托克斯分量由基于频率偏移的频率间隔分开。
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公开(公告)号：US20090008536A1
公开(公告)日：2009-01-08
申请号：US11772997
申请日：2007-07-03
Applicant: Arthur H. Hartog , Gareth P. Lees
Inventor： Arthur H. Hartog , Gareth P. Lees
CPC classification number: G01J3/4412 , G01D5/35364 , G01K11/32
Abstract: To perform distributed sensing with an optical fiber using Brillouin scattering, a light pulse is transmitted into the optical fiber, where the transmitted light pulse has a first frequency. Backscattered light and optical local oscillator light are combined, where the backscattered light is received from the optical fiber in response to the transmitted light pulse, and where the optical local oscillator light has a second frequency. A frequency offset is caused to be present between the first frequency of the transmitted light pulse and the second frequency of the optical local oscillator light, where the frequency offset is at least 1 GHz less than a Brillouin frequency shift of the backscattered light. Spectra representing Stokes and anti-Stokes components of the backscattered light are acquired, where the Stokes and anti-Stokes components are separated by a frequency span that is based on the frequency offset.
Abstract translation: 为了使用布里渊散射使用光纤执行分布式感测，将光脉冲传输到光纤中，其中透射光脉冲具有第一频率。 组合后向散射光和光学本地振荡器光，其中响应于透射的光脉冲从光纤接收反向散射光，并且其中光学本地振荡器光具有第二频率。 使得频率偏移存在于透射光脉冲的第一频率和光学本地振荡器光的第二频率之间，其中频偏比背散射光的布里渊频移小至少1GHz。 获取表示反向散射光的斯托克斯和反斯托克斯分量的光谱，其中斯托克斯和反斯托克斯分量由基于频率偏移的频率间隔分开。
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公开(公告)号：US07417010B2
公开(公告)日：2008-08-26
申请号：US11091757
申请日：2005-03-29
Applicant: Ian Ralph Collins
Inventor： Ian Ralph Collins
CPC classification number: C09K8/82 , C09K8/52 , C09K8/54 , C09K8/602 , C09K2208/20 , C09K2208/22 , Y10S507/921
Abstract: A method of treating a subterranean formation, the method comprising: (A) injecting down a well bore into the formation an admixture of (a) an emulsion having an internal aqueous phase comprising a water-soluble oil or gas field chemical or an aqueous dispersion of a water-dispersible oil or gas field chemical and an external oil phase comprising a liquid hydrocarbon and an oil-soluble surfactant and (b) a demulsifier comprising a solution of a surfactant having a cloud point temperature of above 40° C.; or (B) separately injecting down a well bore into the formation emulsion (a) and demulsifier (b) and generating an admixture of emulsion (a) and demulsifier (b) within the formation.
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公开(公告)号：US20070284100A1
公开(公告)日：2007-12-13
申请号：US11658029
申请日：2005-07-19
Applicant: Ian Collins , Paul Sermon
Inventor： Ian Collins , Paul Sermon
IPC: E21B43/16
CPC classification number: C09K8/528 , B01D61/002 , B01D61/005 , B01D2311/04 , B01D2311/2626 , B01D2311/2649 , B01D2311/2657 , B01D2317/04 , C09K8/58 , E21B37/06 , E21B43/20 , Y02A20/131
Abstract: A scale inhibition method comprising: (a) injecting a dispersion of seed particles of an insoluble mineral salt in an aqueous medium into a formation through an injection well wherein the seed particles have an equivalent spherical diameter of 100% less than 100 nm, preferably 100% less than 50 nm, more preferably 100% less than 25 nm and the aqueous medium has dissolved therein precipitate precursor ions that form a precipitate of the insoluble mineral salt when contacted with resident ions in the formation; (b) allowing the dispersion to percolate through the subterranean formation towards production well and producing the dispersion from the production well; and (c) controllably precipitating the insoluble mineral salt onto the seed particles so as to reduce the deposition of the insoluble mineral salt onto the walls of the porous formation and/or onto the surface in the production well and/or onto the surface downstream of the production well.
Abstract translation: 一种防垢方法，包括：（a）通过注射井将不溶性矿物质盐的种子颗粒分散在水性介质中注入地层，其中种子颗粒的当量球直径为100％小于100nm，优选为100 小于50nm，更优选100％小于25nm，并且水性介质中溶解有沉淀的前体离子，当与地层中的驻留离子接触时，其形成不溶性矿物盐的沉淀物; （b）允许分散体渗透穿过地层以生产良好并从生产井中产生分散体; 和（c）可控地将不溶性矿物盐沉淀到种子颗粒上，以便减少不溶性矿物盐沉积到多孔地层的壁上和/或沉积在生产井和/或表面下游的表面上 生产良好。
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公开(公告)号：US07074258B2
公开(公告)日：2006-07-11
申请号：US10474128
申请日：2002-03-06
Applicant: Ian Ralph Collins , Stephen Paul Goodwin
Inventor： Ian Ralph Collins , Stephen Paul Goodwin
IPC: B01D53/28
CPC classification number: C10L3/10 , B01D17/005 , B01D17/02 , B01D17/0202 , B01D17/0208 , B01D53/1425 , B01D53/263 , Y02C10/06
Abstract: A process for the removal of water from gas which comprises an absorption step of bringing a gas saturated with water vapor into gas-liquid contact with a water-lean absorbing liquid comprising a water absorbing liquid having a cloud point temperature above the freezing point of water whereby water vapor present in the gas is absorbed into the water-lean absorbing liquid at a temperature below its cloud point to produce a refined gas having a reduced water vapor content and water-loaded absorbing liquid. A regeneration step is provided in which the water-loaded absorbing liquid is heated to above the cloud point temperature of the absorbing liquid whereby the water-loaded absorbing liquid separates into a water-rich phase and an absorbing liquid-rich phase and the absorbing liquid-rich phase is cooled to a temperature below its cloud point prior to recycling the absorbing liquid-rich phase for use as water-lean absorbing liquid in the absorption step.
Abstract translation: 一种从气体中除去水的方法，其包括将饱和水蒸气的气体与含有吸水液体的吸液液体接触的吸收步骤，所述吸水液体包含浊点温度高于水冰点的吸水液体 由此，存在于气体中的水蒸汽在低于其浊点的温度下吸收到吸水稀薄液体中，以产生具有降低的水蒸汽含量和含水吸收液体的精炼气体。 提供再生步骤，其中将水性吸收液体加热到吸收液体的浊点温度以上，由此将水分吸收液体分离成富水相和吸收液体富集相以及吸收液体 在吸收液体富集相再循环之前，在吸收步骤中，作为贫水吸收液体使用富二氧化物相冷却到低于其浊点的温度。
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Patent Agency Ranking
公开(公告)号：US07005456B2
公开(公告)日：2006-02-28
申请号：US10476613
申请日：2002-05-17
Applicant: Josephus Johannes Helena Maria Font Freide
IPC: C07C27/00
CPC classification number: C10G2/34 , B01J8/228 , B01J2208/00274 , B01J2208/003 , B01J2208/00637
Abstract: A method of starting up a Fischer-Tropsch reaction in a system comprising at least one high shear mixing zone and a reactor vessel which method comprises a) passing a suspension of a particulate Fischer-Tropsch catalyst in a liquid medium through the high shear mixing zone(s) into the reactor vessel and recycling at least a portion of the suspension to the high shear mixing zone(s) in the substantial absence of a gaseous reactant feed stream comprising synthesis gas; b) increasing the temperature and/or pressure within the reactor vessel until a threshold temperature and/or pressure is reached and subsequently introducing a gaseous reactant stream comprising synthesis gas into the high shear mixing zone(s) where the gaseous reactant stream is mixed with the suspension; c) discharging a mixture comprising synthesis gas and the suspension from the high shear mixing zone(s) into the reactor vessel; d) converting the synthesis gas to liquid hydrocarbons in the reactor vessel to form a product suspension comprising the particulate Fischer-Tropsch catalyst suspended in the liquid medium and liquid hydrocarbons; and e) recycling at least a portion of the product suspension to the high shear mixing zone(s).
Abstract translation: 一种在包含至少一个高剪切混合区和反应器容器的系统中启动费 - 托反应的方法，该方法包括：a）将通过高剪切混合区的液体介质中的费 - 托催化剂颗粒悬浮液 并将基本上不含有合成气的气态反应物进料流的至少一部分悬浮液再循环到高剪切混合区; b）增加反应器容器内的温度和/或压力，直到达到阈值温度和/或压力，随后将包含合成气体的气态反应物流引入高剪切混合区，其中气态反应物流与 暂停; c）将包含合成气的混合物和悬浮液从高剪切混合区排出到反应器容器中; d）将合成气转化为反应器容器中的液态烃，以形成悬浮在液体介质中的包含微量费 - 托催化剂和液体烃的产物悬浮液; 和e）将至少一部分产物悬浮液再循环到高剪切混合区。
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公开(公告)号：US20040132839A1
公开(公告)日：2004-07-08
申请号：US10739284
申请日：2003-12-19
Applicant: BP Exploration Operating Company, Limited
Inventor： Graham Walter Ketley , Barry Nay , David Newton
IPC: C07C027/06
CPC classification number: B01J8/1818 , B01J8/228 , B01J19/26 , B01J2208/00256 , B01J2208/00274 , B01J2208/003 , B01J2208/0053 , C07C1/0455 , C07C1/066 , Y02P20/582
Abstract: A process for the conversion of synthesis gas into higher hydrocarbon products in a system comprising a high shear mixing zone and a post mixing zone wherein the process comprises: a) passing a suspension of catalyst in a liquid medium through the high shear mixing zone where the suspension is mixed with synthesis gas; b) discharging a mixture of synthesis gas and suspension from the high shear mixing zone into the post mixing zone; c) converting at least a portion of the synthesis gas to higher hydrocarbons in the post mixing zone to form a product suspensi n comprising catalyst suspended in the liquid medium and the higher hydrocarbons; d) separating a gaseous stream comprising uncoverted synthesis gas from the product suspension; e) recycling the separated gaseous stream to the high shear mixing zone; and f) recycling at least a portion of the product suspension to the high shear mixing zone.
Abstract translation: 一种在包括高剪切混合区和后混合区的系统中将合成气转化为高级烃产物的方法，其中所述方法包括：a）使催化剂在液体介质中的悬浮液通过高剪切混合区，其中 悬浮液与合成气混合; b）将合成气和悬浮液的混合物从高剪切混合区排出到后混合区; c）将后处理区中的至少一部分合成气转化成高级烃，以形成悬浮在液体介质和高级烃中的催化剂的产品悬浮液; d）从产物悬浮液中分离出包含未转化的合成气的气流; e）将分离的气流再循环到高剪切混合区; 和f）将至少一部分产物悬浮液再循环到高剪切混合区。
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公开(公告)号：US11859488B2
公开(公告)日：2024-01-02
申请号：US16698335
申请日：2019-11-27
Applicant: BP Exploration Operating Company Limited
Inventor： Pradyumna Thiruvenkatanathan
IPC: E21B47/107 , E21B47/14 , G01V1/50 , G06F30/20 , G01V1/28 , G01V1/30 , G06F30/28 , G01V1/00 , G01V99/00 , G06N7/01
CPC classification number: E21B47/107 , E21B47/14 , G01V1/001 , G01V1/282 , G01V1/288 , G01V1/307 , G01V1/50 , G01V99/005 , G06F30/20 , G06F30/28 , G06N7/01 , E21B2200/20 , E21B2200/22 , G01V2210/21 , G01V2210/324
Abstract: A method of identifying inflow locations along a wellbore includes obtaining an acoustic signal from a sensor within the wellbore, determining a plurality of frequency domain features from the acoustic signal, and identifying, using a plurality of fluid flow models, a presence of at least one of a gas phase inflow, an aqueous phase inflow, or a hydrocarbon liquid phase inflow at one or more fluid flow locations. The acoustic signal includes acoustic samples across a portion of a depth of the wellbore, and the plurality of frequency domain features are obtained across a plurality of depth intervals within the portion of the depth of the wellbore. Each fluid flow model of the plurality of fluid inflow models uses one or more frequency domain features of the plurality of the frequency domain features, and at least two of the plurality of fluid flow models are different.
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公开(公告)号：US20230161373A1
公开(公告)日：2023-05-25
申请号：US17769011
申请日：2020-10-15
Applicant: BP Exploration Operating Company Limited
Inventor： Alistair George CROSBY
Abstract: In some examples, the disclosure provides a method for determining a drift in clock data that is provided by a clock of a seismic sensor. The sensor is exposed to an ambient temperature that varies over time. The method includes obtaining temperature data associated with the ambient temperature as a function of time. The method also includes obtaining the clock data. The method also includes obtaining timestamp data provided by a global navigation satellite system. The method also includes determining drift data which minimizes a difference of a temporal drift in the clock data, based on the timestamp data and the temperature data. The method also includes outputting corrective data based on the determined drift data.
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公开(公告)号：US20220414301A1
公开(公告)日：2022-12-29
申请号：US17294759
申请日：2019-11-27
Applicant: BP Exploration Operating Company Limited , Lytt Limited
Inventor： Pradyumna THIRUVENKATANATHAN
IPC: G06F30/28 , E21B47/107 , G01V99/00
Abstract: A method of identifying events includes obtaining an acoustic signal from a sensor, determining one or more frequency domain features from the acoustic signal, providing the one or more frequency domain features as inputs to a plurality of event detection models, and determining the presence of one or more events using the plurality of event detection models. The one or more frequency domain features are obtained across a frequency range of the acoustic signal, and at least two of the plurality of event detection models are different.
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