公开(公告)号：US09371710B2

公开(公告)日：2016-06-21

申请号：US13547210

申请日：2012-07-12

申请人： Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Badarinadh Vissapragada

发明人： Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Badarinadh Vissapragada

IPC分类号： E21B49/00 ,  E21B33/124

CPC分类号： E21B33/124 ,  E21B49/008

摘要： A wireline logging tool and method for fluid monitoring and flow characterization in individual zones of controlled salinity is disclosed. The tool and method advantageously facilitate zone-specific testing. Sets of packers are used to create hydraulically distinct zones proximate to the tool. Coiled tubing and isolation valves are used to selectively introduce and remove an electrically conductive fluid such as brine to and from a selected zone. Individual sensors are disposed near each zone to make zone-specific measurements while fluid properties are changed, e.g., while salinity is changed to cause salinity fronts in the formation.

摘要翻译： 公开了用于控制盐度的各个区域中的流体监测和流动表征的电缆测井工具和方法。 该工具和方法有利于促进区域特异性测试。 包装机组用于在工具附近创建液压不同的区域。 螺旋管和隔离阀用于选择性地将导电流体（例如盐水）引入并从所选区域去除。 单独的传感器设置在每个区域附近以进行区域特异性测量，同时改变流体性质，例如当盐度改变以引起地层中的盐度前沿时。

公开(公告)号：US08251140B2

公开(公告)日：2012-08-28

申请号：US12559800

申请日：2009-09-15

申请人： Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Badarinadh Vissapragada

发明人： Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Badarinadh Vissapragada

IPC分类号： E21B43/16 ,  E21B47/10 ,  E21B49/00

CPC分类号： E21B33/124 ,  E21B49/008

摘要： A wireline logging tool and method for fluid monitoring and flow characterization in individual zones of controlled salinity is disclosed. The tool and method advantageously facilitate zone-specific testing. Sets of packers are used to create hydraulically distinct zones proximate to the tool. Coiled tubing and isolation valves are used to selectively introduce and remove an electrically conductive fluid such as brine to and from a selected zone. Individual sensors are disposed near each zone to make zone-specific measurements while fluid properties are changed, e.g. while salinity is changed to cause salinity fronts in the formation.

摘要翻译： 公开了用于控制盐度的各个区域中的流体监测和流动表征的电缆测井工具和方法。 该工具和方法有利于促进区域特异性测试。 包装机组用于在工具附近创建液压不同的区域。 螺旋管和隔离阀用于选择性地将导电流体（例如盐水）引入并从所选区域去除。 单独的传感器设置在每个区域附近以进行区域特异性测量，同时改变流体性质，例如。 而盐度变化会导致地层中的盐碱面。

公开(公告)号：US20110061863A1

公开(公告)日：2011-03-17

申请号：US12559800

申请日：2009-09-15

申请人： Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Badarinadh Vissapragada

发明人： Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Badarinadh Vissapragada

IPC分类号： E21B47/00

CPC分类号： E21B33/124 ,  E21B49/008

摘要： A wireline logging tool and method for fluid monitoring and flow characterization in individual zones of controlled salinity is disclosed. The tool and method advantageously facilitate zone-specific testing. Sets of packers are used to create hydraulically distinct zones proximate to the tool. Coiled tubing and isolation valves are used to selectively introduce and remove an electrically conductive fluid such as brine to and from a selected zone. Individual sensors are disposed near each zone to make zone-specific measurements while fluid properties are changed, e.g. while salinity is changed to cause salinity fronts in the formation.

摘要翻译： 公开了用于控制盐度的各个区域中的流体监测和流动表征的电缆测井工具和方法。 该工具和方法有利于促进区域特异性测试。 包装机组用于在工具附近创建液压不同的区域。 螺旋管和隔离阀用于选择性地将导电流体（例如盐水）引入并从所选区域去除。 单独的传感器设置在每个区域附近以进行区域特异性测量，同时改变流体性质，例如。 而盐度变化会导致地层中的盐碱面。

公开(公告)号：US20100126717A1

公开(公告)日：2010-05-27

申请号：US12276673

申请日：2008-11-24

申请人： Fikri Kuchuk ,  Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Ian Falconer ,  Saygi Gokhan ,  Edward Harrigan ,  Anthony Goodwin ,  Lawrence J. Leising ,  Fernando Mattos

发明人： Fikri Kuchuk ,  Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Ian Falconer ,  Saygi Gokhan ,  Edward Harrigan ,  Anthony Goodwin ,  Lawrence J. Leising ,  Fernando Mattos

IPC分类号： E21B47/00 ,  E21B43/00 ,  E21B43/26 ,  E21B47/12

CPC分类号： E21B49/008

摘要： An example instrumented formation tester for injecting fluids and monitoring of fluids described herein includes a downhole tool which can be deployed in a wellbore via a wireline or a drill string. The downhole tool may facilitate the injection of fluids into an underground formation, and the monitoring of the directions in which the injected fluids flow in the formation in an open hole environment. In particular, the downhole tool may be configured for removing the mud cake from a portion of the wellbore wall for facilitating a fluid communication with the formation to be tested.

摘要翻译： 用于喷射流体和本文所述的流体监测的示例性仪器地层测量仪包括井下工具，其可以经由钢丝绳或钻柱部署在井眼中。 井下工具可以促进将流体注入地下地层，以及监测注入的流体在露天环境中在地层中流动的方向。 特别地，井下工具可以被配置为从井筒壁的一部分去除泥饼，以便于与要测试的地层的流体连通。

公开(公告)号：US06675892B2

公开(公告)日：2004-01-13

申请号：US10170617

申请日：2002-06-13

申请人： Fikri J. Kuchuk ,  Terizhandur S. Ramakrishnan ,  Alpaslan Z. Tengirsek ,  Ashok K. Belani ,  Tarek M. Habashy ,  Adrian Douglas

发明人： Fikri J. Kuchuk ,  Terizhandur S. Ramakrishnan ,  Alpaslan Z. Tengirsek ,  Ashok K. Belani ,  Tarek M. Habashy ,  Adrian Douglas

IPC分类号： E21B4706

CPC分类号： E21B49/087 ,  E21B47/06

摘要： A technique includes measuring a first pressure of well fluid in a first region. The well fluid is produced from a formation into the first region. A second pressure of well fluid is measured in a second region. The second region is isolated from the first region, and the well fluid in the second region is in communication with the formation characteristics (skin, horizontal permeability or vertical permeability, as examples) of the formation is determined from the first and second measured pressures.

摘要翻译： 一种技术包括测量第一区域中的井流体的第一压力。 井液从地层产生到第一区域。 在第二区域中测量井流体的第二压力。 第二区域与第一区域隔离，并且第二区域中的井流体与第一和第二测量压力确定地层特征（皮肤，水平渗透率或纵向渗透率，例如）。

公开(公告)号：US08191416B2

公开(公告)日：2012-06-05

申请号：US12276673

申请日：2008-11-24

申请人： Fikri Kuchuk ,  Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Ian Falconer ,  Saygi Gokhan ,  Edward Harrigan ,  Anthony Goodwin ,  Lawrence Leising ,  Fernando Mattos

发明人： Fikri Kuchuk ,  Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Ian Falconer ,  Saygi Gokhan ,  Edward Harrigan ,  Anthony Goodwin ,  Lawrence Leising ,  Fernando Mattos

IPC分类号： E21B47/10

CPC分类号： E21B49/008

摘要： An example instrumented formation tester for injecting fluids and monitoring of fluids described herein includes a downhole tool which can be deployed in a wellbore via a wireline or a drill string. The downhole tool may facilitate the injection of fluids into an underground formation, and the monitoring of the directions in which the injected fluids flow in the formation in an open hole environment. In particular, the downhole tool may be configured for removing the mud cake from a portion of the wellbore wall for facilitating a fluid communication with the formation to be tested.

摘要翻译： 用于喷射流体和本文所述的流体监测的示例性仪器地层测量仪包括井下工具，其可以经由钢丝绳或钻柱部署在井眼中。 井下工具可以促进将流体注入地下地层，以及监测注入的流体在露天环境中在地层中流动的方向。 特别地，井下工具可以被配置为从井筒壁的一部分去除泥饼，以便于与要测试的地层的流体连通。

公开(公告)号：US20080314582A1

公开(公告)日：2008-12-25

申请号：US11766534

申请日：2007-06-21

申请人： Ashok Belani ,  Tarek M. Habashy ,  Terizhandur S. Ramakrishnan ,  Fikri J. Kuchuk ,  Ramachandra G. Shenoy

发明人： Ashok Belani ,  Tarek M. Habashy ,  Terizhandur S. Ramakrishnan ,  Fikri J. Kuchuk ,  Ramachandra G. Shenoy

IPC分类号： E21B47/00

CPC分类号： G01V11/00

摘要： A downhole-reconfigurable tool string is utilized to obtain targeted measurements for formation evaluation and reservoir characterization. Tool string hardware and corresponding analysis software are dynamically adjusted to meet specific reservoir description needs identified during or before the logging run with the downhole-reconfigurable tool string. A technique for utilizing the downhole-reconfigurable tool string includes four different steps. The first step includes detecting first order features and identifying second order features. The second step includes enhancing measurements relative to the second order features by reconfiguring tool hardware to extract at least the desired information of the reservoir in terms of its static and dynamic properties, and software focusing to enhance the sensitivity to a particular reservoir attribute. The third step is performing an inversion to reconstruct the reservoir property as accurately as possible. The fourth step is using these properties and the planned production/injection data to recommend suitable monitoring schema.

摘要翻译： 利用井下可重构工具串来获得用于地层评估和储层表征的目标测量。 动态调整工具串硬件和相应的分析软件，以满足使用井下可重构工具串在日志记录期间或之前识别的特定油藏描述需求。 利用井下可重构工具串的技术包括四个不同的步骤。 第一步包括检测一阶特征并识别二阶特征。 第二步包括通过重新配置工具硬件来提高与二阶特征相关的测量，以根据其静态和动态属性提取储层的期望信息，以及集中于增强对特定储层属性的敏感性的软件。 第三步是尽可能准确地进行反演以重建储层特性。 第四步是使用这些属性和计划的生产/注入数据来推荐合适的监控模式。

公开(公告)号：US6061634A

公开(公告)日：2000-05-09

申请号：US843206

申请日：1997-04-14

申请人： Ashok Belani ,  Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Fikri John Kuchuk ,  Luis Ayestaran

发明人： Ashok Belani ,  Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Fikri John Kuchuk ,  Luis Ayestaran

IPC分类号： E21B49/00 ,  G06F19/00

CPC分类号： E21B49/008

摘要： Methods and apparatus for estimating values for formation parameters such as permeability, relative permeability, and skin factors for a plurality of locations in the formation are provided. Fluid is forced into a capped borehole at a measured rate, and a borehole logging tool is run in the borehole to measure indications of pressure and conductivity. Estimates of the parameters and the measured fluid flow rate(s) into the formation are used in conjunction with a jointly inverted pressure transient model and saturation-conductivity model in order to compute indications of expected pressure and indications of expected conductivity-related profiles as a function of depth and time. The expected pressures and expected conductivity related profile indications are then compared to the pressures and conductivity indications measured by the borehole logging tool, and an iterated comparison between the computed values and the measured values is used to provide determinations of the formation parameters. According to a preferred embodiment, the pressure transient model is for compressible flow and provides an estimated calculated fluid flow into the layers of the formation; the estimated calculated fluid flow being an input to the saturation-conductivity model which is for incompressible flow.

摘要翻译： 提供了用于估计地层参数的值的方法和装置，例如地层中的多个位置的渗透率，相对渗透率和皮肤因子。 流体以测量的速率被迫进入加盖的钻孔中，并且钻孔测井工具在钻孔中运行以测量压力和电导率的指示。 结合使用联合倒置压力瞬态模型和饱和电导率模型的参数估计和测量的流体流速进入地层，以计算预期压力的指示和预期的导电率相关曲线的指示为 深度和时间的功能。 然后将期望的压力和预期的导电率相关曲线指示与由钻孔测井工具测量的压力和电导率指示进行比较，并且使用计算值和测量值之间的迭代比较来提供地层参数的确定。 根据优选实施例，压力瞬变模型用于可压缩流动，并且向地层的层提供估计的计算流体流量; 估计的计算流体流量是用于不可压缩流动的饱和电导率模型的输入。

公开(公告)号：US08276380B2

公开(公告)日：2012-10-02

申请号：US12558854

申请日：2009-09-14

申请人： Terizhandur S. Ramakrishnan ,  Sandeep Verma ,  Wenlin Zhang ,  Philippe Lacour-Gayet ,  Muthusamy Vembusubramanian

发明人： Terizhandur S. Ramakrishnan ,  Sandeep Verma ,  Wenlin Zhang ,  Philippe Lacour-Gayet ,  Muthusamy Vembusubramanian

IPC分类号： F03G7/00

CPC分类号： F04D25/04 ,  F25J1/0022 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0045 ,  F25J1/0201 ,  F25J1/0229 ,  F25J1/0232 ,  F25J2260/80 ,  F25J2270/06 ,  Y02C10/14

摘要： A zero-emissions power plant receives natural gas from wells at elevated pressure and temperature. Gas is expanded through one or more turbo-expanders, preferably reformed, and sent to a fuel cell where electricity, heat, carbon-dioxide, and water are generated. The carbon-dioxide is compressed by at least one compressor and piped downhole for sequestration. The turbo-expanders have shafts which preferably share the shafts of the compressors. Thus, energy given up by the natural gas in the turbo-expanders is used to run compressors which compress carbon dioxide for downhole sequestration. In one embodiment, the natural gas is applied to heat exchangers in order to generate a stream of liquid natural gas. The remainder of the gas is expanded through the turbo-expanders and processed in the reformer prior to being sent to the fuel cell. A shifter may be used between the reformer and fuel cell. A solid oxide fuel cell is preferred.

摘要翻译： 零排放发电厂在高压和高温下从井中接收天然气。 气体通过一个或多个涡轮膨胀机膨胀，优选重整，并送到燃料电池，其中产生电，热，二氧化碳和水。 二氧化碳被至少一个压缩机压缩并通过井下管道进行封存。 涡轮膨胀机具有优选地共享压缩机的轴的轴。 因此，涡轮膨胀机中的天然气放弃的能量用于运行压缩二氧化碳进行井下隔离的压缩机。 在一个实施例中，将天然气施加到热交换器以产生液态天然气流。 气体的剩余部分通过涡轮膨胀机膨胀，并在被送入燃料电池之前在重整器中进行处理。 可以在重整器和燃料电池之间使用换档器。 固体氧化物燃料电池是优选的。

公开(公告)号：US07763099B2

公开(公告)日：2010-07-27

申请号：US11956414

申请日：2007-12-14

申请人： Sandeep Verma ,  Terizhandur S. Ramakrishnan

发明人： Sandeep Verma ,  Terizhandur S. Ramakrishnan

IPC分类号： B01D53/02

CPC分类号： E21B43/385 ,  B01D53/0423 ,  B01D53/047 ,  B01D2253/102 ,  B01D2253/108 ,  B01D2257/504 ,  B01D2258/06 ,  C10L3/10 ,  C10L3/102 ,  E21B43/164 ,  Y02C10/08 ,  Y02P90/70

摘要： Methods and systems are provided where a production gas stream including natural gas and carbon dioxide is separated downhole using dual reflux pressure swing adsorption with the natural gas being produced and the carbon dioxide being directed for downhole storage (sequestration).

摘要翻译： 提供了方法和系统，其中包括天然气和二氧化碳的生产气流在井下使用双重回流变压吸附与所生产的天然气并且二氧化碳被引导用于井下存储（隔离）。