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1. 发明授权

US08276380B2 Zero emission natural gas power and liquefaction plant 有权
标题翻译：零排放天然气动力和液化装置
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。

2. 发明授权

US07763099B2 Downhole separation of carbon dioxide from natural gas produced from natural gas reservoirs 有权
标题翻译：从天然气储层产生的天然气的二氧化碳的井下分离
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）。

3. 发明申请

US20100000215A1 ZERO EMISSION NATURAL GAS POWER AND LIQUEFACTION PLANT 有权
标题翻译：零排放天然气动力和液化装置
公开(公告)号：US20100000215A1
公开(公告)日：2010-01-07
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。

4. 发明授权

US07607303B2 Zero emission natural gas power and liquefaction plant 有权
标题翻译：零排放天然气动力和液化装置
公开(公告)号：US07607303B2
公开(公告)日：2009-10-27
申请号：US11616591
申请日：2006-12-27
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。

5. 发明申请

US20090250209A1 METHOD AND TOOL FOR EVALUATING FLUID DYNAMIC PROPERTIES OF A CEMENT ANNULUS SURROUNDING A CASING 有权
标题翻译：用于评估水泥环形流体流动性能的方法和工具
公开(公告)号：US20090250209A1
公开(公告)日：2009-10-08
申请号：US12180354
申请日：2008-07-25
申请人： Terizhandur S. Ramakrishnan , Nikita V. Chugunov , Andrew Duguid , John Tombari
发明人： Terizhandur S. Ramakrishnan , Nikita V. Chugunov , Andrew Duguid , John Tombari
IPC分类号： E21B47/00
CPC分类号： E21B47/0005
摘要： The permeability of the cement annulus surrounding a casing is measured by locating a tool inside the casing, placing a probe of the tool in hydraulic contact with the cement annulus, measuring the change of pressure in the probe over time, where the change in pressure over time is a function of among other things, the initial probe pressure, the formation pressure, and the permeability, and using the measured change over time to determine an estimated permeability. By drilling into the cement and making additional measurements of the change of pressure in the probe over time, a radial profile of the cement permeability can be generated.
摘要翻译：通过将工具定位在壳体内部，将工具的探针放置在与水泥环空隙液压接触的位置，测量探头随时间的压力变化，测量其周围的压力变化时间是初始探针压力，地层压力和渗透率之间的函数，并且使用测量的随时间的变化来确定估计的磁导率。通过钻入水泥并对随时间推移的探针中的压力变化进行额外的测量，可以产生水泥渗透性的径向轮廓。

6. 发明申请

US20080215242A1 PETROPHYSICAL INTERPRETATION OF MULTIPASS ARRAY RESISTIVITY DATA OBTAINED WHILE DRILLING 有权
标题翻译：在钻孔时获得的多数阵列电阻数据的物理解释
公开(公告)号：US20080215242A1
公开(公告)日：2008-09-04
申请号：US11854320
申请日：2007-09-12
申请人： Terizhandur S. Ramakrishnan
发明人： Terizhandur S. Ramakrishnan
IPC分类号： G01V3/38
CPC分类号： G01V3/38 , A61B17/0057 , A61B17/0218 , A61B2017/00557 , A61B2017/00637 , A61B2017/00659 , A61F2/0063
摘要： Resistivity measurements at different radial depths of investigation obtained from multiple passes of a resistivity tool through a borehole are analyzed together to obtain indications of at least one of fractional flow, oil saturation, and water saturation in a formation.
摘要翻译：在电阻率工具通过井眼的多次通过中获得的不同径向深度的电阻率测量被一起分析以获得地层中的分数流，油饱和度和水饱和度中的至少一个的指示。

7. 发明申请

US20080162357A1 SYSTEM AND METHOD FOR SECURE DOWNHOLE INTELLIGENT COMPLETIONS 有权
标题翻译：用于安全的智能完井系统和方法
公开(公告)号：US20080162357A1
公开(公告)日：2008-07-03
申请号：US11759321
申请日：2007-06-07
申请人： Paul D. Gerardi , Valery Polyakov , Terizhandur S. Ramakrishnan , Bertrand du Castel
发明人： Paul D. Gerardi , Valery Polyakov , Terizhandur S. Ramakrishnan , Bertrand du Castel
IPC分类号： H04L9/14 , G06Q10/00
CPC分类号： G06Q20/38215 , E21B34/00 , E21B34/16 , G06Q20/206 , G06Q50/06 , H04L9/321 , H04L9/3263
摘要： A flow control apparatus for controlling fluid flow in a petroleum reservoir. The flow control apparatus has a flow control mechanism, a controller operable to control the flow control mechanism to adjust fluid flow through the flow control mechanism, the controller comprising a processor operable to execute according to a control algorithm, and a non-volatile memory connected to the controller. The non-volatile memory includes instructions to cause the controller to execute an authentication mechanism operable to authenticate a control computer and to prevent operation of the controller until the authentication mechanism authenticates the control computer.
摘要翻译：一种用于控制石油储存器中的流体流动的流量控制装置。流量控制装置具有流量控制机构，控制器，可操作以控制流量控制机构以调节通过流量控制机构的流体流量，所述控制器包括可操作以根据控制算法执行的处理器和连接的非易失性存储器到控制器。非易失性存储器包括使得控制器执行认证机制的操作来认证控制计算机并且防止控制器的操作的认证机构认证控制计算机的指令。

8. 发明授权

US6088656A Method for interpreting carbonate reservoirs 有权
标题翻译：解释碳酸盐岩储层的方法
公开(公告)号：US6088656A
公开(公告)日：2000-07-11
申请号：US189025
申请日：1998-11-10
申请人： Terizhandur S. Ramakrishnan , Raghu Ramamoorthy , Naoki Saito , Charles Flaum
发明人： Terizhandur S. Ramakrishnan , Raghu Ramamoorthy , Naoki Saito , Charles Flaum
IPC分类号： G01V3/20 , G01V11/00 , G06F19/00 , G01V3/38
CPC分类号： G01V3/20 , G01V11/00 , G01V2210/66
摘要： An integrated interpretation methodology is described that evaluates carbonate reservoirs. The methodology consists of first classifying the rock facies. A geometrical model specific to the classification is then used to predict the response of the rock to a variety of stimuli. A reconstruction of the geometrical model is made by comparing the measurements with the model predictions. The model is then used to predict the resistivity and the hydraulic transport properties of the rock, thereby enabling computation of both the reserves and their production behavior.
摘要翻译：描述了评估碳酸盐岩储层的综合解释方法。该方法包括首先对岩相进行分类。然后使用特定于分类的几何模型来预测岩石对各种刺激的响应。通过将测量与模型预测进行比较，可以对几何模型进行重建。然后将该模型用于预测岩石的电阻率和液压输运性质，从而可以计算储量及其生产行为。

9. 发明授权

US5992519A Real time monitoring and control of downhole reservoirs 失效
标题翻译：井下水库实时监控
公开(公告)号：US5992519A
公开(公告)日：1999-11-30
申请号：US979907
申请日：1997-09-29
申请人： Terizhandur S. Ramakrishnan , R. K. Michael Thambynayagam
发明人： Terizhandur S. Ramakrishnan , R. K. Michael Thambynayagam
IPC分类号： E21B43/00 , E21B43/12 , E21B47/00 , E21B34/16 , E21B47/06
CPC分类号： E21B47/00 , E21B43/00 , E21B43/12
摘要： The method for the active or automated control of the reservoir uses a reservoir model with available data such as seismic, log, and core data as inputs, and uses the reservoir model in conjunction with a reservoir simulation tool in order to determine a production strategy which will maximize certain criteria, e.g., profits. The production strategy may include fixed elements which are not easily altered once the wells go into production, and variable elements which can be adjusted without serious effort during production. The production strategy is implemented by drilling wells, etc., and fluids are then controllably produced from the reservoir according to the variable production strategy; i.e., fluid flow rates are monitored by sensors, and, by adjusting control valves, are kept to desired values (which may change over time) set according to the variable production strategy. According to another aspect of the invention, information gleaned as a result of the adjustments to the control means is used to update the reservoir model. As a result, the variable and fixed production strategies can be updated and implemented.
摘要翻译：用于主动或自动控制储层的方法使用具有诸如地震，对数和核心数据的可用数据作为输入的储层模型，并且使用储层模型结合储层模拟工具来确定生产策略，将最大化某些标准，例如利润。生产策略可能包括一旦井进入生产时不容易改变的固定元素，以及在生产过程中可以不经过认真努力调整的可变元件。生产策略由钻井等实施，然后根据可变生产策略从储层可控地生产流体; 即通过传感器监测流体流速，并且通过调节控制阀，将其保持为根据可变生产策略设定的期望值（其随时间而变化）。根据本发明的另一方面，作为对控制装置的调整的结果收集的信息用于更新储层模型。因此，可以更新和实施可变和固定的生产战略。

10. 发明授权

US09312557B2 Fuel cell apparatus and method for downhole power systems 有权
公开(公告)号：US09312557B2
公开(公告)日：2016-04-12
申请号：US11126524
申请日：2005-05-11
申请人： Wenlin Zhang , Terizhandur S. Ramakrishnan , Joseph Walter , Albert Perez, Jr.
发明人： Wenlin Zhang , Terizhandur S. Ramakrishnan , Joseph Walter , Albert Perez, Jr.
IPC分类号： H01M8/10 , E21B49/08 , H01M8/24 , E21B41/00 , H01M8/04 , H01M8/18
CPC分类号： E21B41/0085 , E21B4/04 , H01M8/0273 , H01M8/04089 , H01M8/04104 , H01M8/04291 , H01M8/04365 , H01M8/04388 , H01M8/04395 , H01M8/04559 , H01M8/04589 , H01M8/04753 , H01M8/0488 , H01M8/0491 , H01M8/0656 , H01M8/186 , H01M8/241 , Y02E60/528 , Y02P70/56
摘要： A rechargeable power system comprising: a drill string configured to operate in a well bore, the drill string comprising: a fuel cell system; a generator in electrical communication with the fuel cell system; a turbine, configured to rotate due to an impingement of drilling mud on one or more turbine blades, the turbine in operable communication with the generator; and where the fuel cell system is configured to provide power at least when drilling mud is not circulating in the well bore, and further configured to be recharged by the generator when drilling mud is circulating in the well bore. A method for operating a rechargeable downhole fuel cell. The method comprises: monitoring a fluid supply pressure; determining whether the fluid supply pressure is below a threshold value; and stopping a fuel cell discharge if the fluid supply pressure is below the threshold value.

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