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21. 发明授权

US07726402B2 Methods for downhole sequestration of carbon dioxide 有权
标题翻译：井下封存二氧化碳的方法
公开(公告)号：US07726402B2
公开(公告)日：2010-06-01
申请号：US12167512
申请日：2008-07-03
申请人： Terizhandur S. Ramakrishnan , Romain De Loubens , Yusuf Bilgin Altundas
发明人： Terizhandur S. Ramakrishnan , Romain De Loubens , Yusuf Bilgin Altundas
IPC分类号： B65G5/00
CPC分类号： E21B41/0064 , Y02C10/14
摘要： Carbon dioxide is sequestered in a formation using a dual completion and injection method that reduces or eliminates upward leak rates of the sequestered carbon dioxide. The dual completion and injection method involves the injection of a benign fluid such as brine (water) into a permeable layer of the formation located above the sequestration layer and which is separated form the sequestration layer by a nearly impermeable layer. The water is preferably injected at the same time the carbon dioxide is injected.
摘要翻译：使用双重完井和注射方法将二氧化碳隔离在地层中，以减少或消除隔离二氧化碳的向上泄漏速率。双重完井和注射方法包括将诸如盐水（水）的良性流体注入到位于隔离层上方的地层的可渗透层中，并且通过几乎不可渗透的层从隔离层分离。优选在注入二氧化碳的同时注入水。

22. 发明申请

US20100126717A1 INSTRUMENTED FORMATION TESTER FOR INJECTING AND MONITORING OF FLUIDS 有权
标题翻译：用于注射和监测流体的仪器检测仪
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。

23. 发明申请

US20100116511A1 SYSTEMS AND METHODS FOR DOWNHOLE SEQUESTRATION OF CARBON DIOXIDE 有权
标题翻译：二氧化碳的下层序列的系统和方法
公开(公告)号：US20100116511A1
公开(公告)日：2010-05-13
申请号：US12614829
申请日：2009-11-09
申请人： Terizhandur S. Ramakrishnan , Romain De Loubens , Yusuf Bilgin Altundas
发明人： Terizhandur S. Ramakrishnan , Romain De Loubens , Yusuf Bilgin Altundas
IPC分类号： E21B43/16
CPC分类号： E21B41/0064 , E21B43/164 , Y02C10/14 , Y02P90/70
摘要： Carbon dioxide is sequestered in a formation using dual or multiple completion and injection methods that reduce or eliminates upward leak rates of the sequestered carbon dioxide. The dual or multiple completion and injection method involves the injection of a benign fluid such as brine (water) into a permeable layer of the formation located above the sequestration layer and which is separated form the sequestration layer by a nearly impermeable layer. The water is injected at the same time the carbon dioxide is injected.
摘要翻译：使用双重或多次完井和注射方法将二氧化碳隔离在地层中，可减少或消除隔离二氧化碳的向上泄漏速率。双重或多次完井和注射方法包括将诸如盐水（水）的良性流体注入到位于隔离层上方的地层的可渗透层中，并且通过几乎不可渗透的层从隔离层分离。在注入二氧化碳的同时注入水。

24. 发明申请

US20100000737A1 METHODS FOR DOWNHOLE SEQUESTRATION OF CARBON DIOXIDE 有权
标题翻译：碳二氧化物的井下排序方法
公开(公告)号：US20100000737A1
公开(公告)日：2010-01-07
申请号：US12167512
申请日：2008-07-03
申请人： Terizhandur S. Ramakrishnan , Romain De Loubens , Yusuf Bilgin Altundas
发明人： Terizhandur S. Ramakrishnan , Romain De Loubens , Yusuf Bilgin Altundas
IPC分类号： E21B43/00 , E21B43/11
CPC分类号： E21B41/0064 , Y02C10/14
摘要： Carbon dioxide is sequestered in a formation using a dual completion and injection method that reduces or eliminates upward leak rates of the sequestered carbon dioxide. The dual completion and injection method involves the injection of a benign fluid such as brine (water) into a permeable layer of the formation located above the sequestration layer and which is separated form the sequestration layer by a nearly impermeable layer. The water is preferably injected at the same time the carbon dioxide is injected.
摘要翻译：使用双重完井和注射方法将二氧化碳隔离在地层中，以减少或消除隔离二氧化碳的向上泄漏速率。双重完井和注射方法包括将诸如盐水（水）的良性流体注入到位于隔离层上方的地层的可渗透层中，并且通过几乎不可渗透的层从隔离层分离。优选在注入二氧化碳的同时注入水。

25. 发明授权

US07152466B2 Methods and apparatus for rapidly measuring pressure in earth formations 有权
标题翻译：快速测量地层压力的方法和装置
公开(公告)号：US07152466B2
公开(公告)日：2006-12-26
申请号：US10351821
申请日：2003-01-27
申请人： Terizhandur S. Ramakrishnan , Eric Donzier
发明人： Terizhandur S. Ramakrishnan , Eric Donzier
IPC分类号： E21B47/06 , E21B49/10
CPC分类号： E21B49/008 , E21B47/06 , E21B49/10
摘要： Methods and apparatus for rapidly measuring pressure in earth formations are disclosed. According to a first embodiment of the apparatus, a probe is provided with a movable piston having a sensor built into the piston. According to a second embodiment of the apparatus, the pressure sensor is mounted adjacent to or within the piston cylinder and a fluid pathway is provided from the sensor to the interior of the cylinder. Methods of operating the first and second embodiments include delivering the probe to a desired location in a borehole, setting the probe against the formation, and withdrawing the piston to draw down fluid for pressure sensing. A third embodiment of the probe is similar to the second but is provided with a spring loaded metal protector surrounding the cylinder and an annular rubber facing. The third embodiment is preferably used in a semi-continuous pressure measuring tool or an LWD tool having a piston controlled bowspring and a piston controlled articulated member carrying the probe. The tool is moved in a semi-set mode and when located at a desired depth is rapidly put in a fully-set mode.
摘要翻译：公开了用于快速测量地层中压力的方法和装置。根据该装置的第一实施例，探针设置有具有内置于活塞中的传感器的活动活塞。根据装置的第二实施例，压力传感器安装在活塞气缸附近或内部，并且从传感器提供到气缸的内部的流体通路。操作第一和第二实施例的方法包括将探针输送到钻孔中的期望位置，将探针抵靠地层设置，并且抽出活塞以抽出流体用于压力感测。探针的第三实施例类似于第二实施例，但是设置有围绕圆筒和环形橡胶面对的弹簧加载的金属保护器。第三实施例优选地用于半连续压力测量工具或具有活塞控制的弓形弹簧的LWD工具和承载探针的活塞控制的铰接构件。该工具以半定模式移动，并且当位于所需深度时，快速置于完全设置模式。

26. 发明授权

US07081615B2 Methods and apparatus for the downhole characterization of formation fluids 有权
公开(公告)号：US07081615B2
公开(公告)日：2006-07-25
申请号：US10309849
申请日：2002-12-03
申请人： Soraya S. Betancourt , Anthony Goodwin , Go Fujisawa , Oliver C. Mullins , Hani Elshahawi , Julian Pop , Terizhandur S. Ramakrishnan , Li Jiang
发明人： Soraya S. Betancourt , Anthony Goodwin , Go Fujisawa , Oliver C. Mullins , Hani Elshahawi , Julian Pop , Terizhandur S. Ramakrishnan , Li Jiang
IPC分类号： G01N9/00
CPC分类号： E21B47/10 , G01N1/12 , G01N7/00 , G01N9/36 , G01N25/04 , G01N33/2823
摘要： Methods and apparatus for investigating a hydrocarbon bearing geological formation traversed by a borehole are disclosed. A borehole tool is used to acquire a sample of fluid in the formation. Compositional analysis of the fluid sample is conducted to provide a determination of the composition of the sample. The sample composition is then related to a model of the thermodynamic behavior of the fluid; i.e., the mass fractions of the fluid components are used as inputs to an equation of state (EOS) to predict the phase behavior of the fluid.

27. 发明授权

US06629564B1 Downhole flow meter 有权
标题翻译：井下流量计
公开(公告)号：US06629564B1
公开(公告)日：2003-10-07
申请号：US09672471
申请日：2000-09-28
申请人： Terizhandur S. Ramakrishnan , Gary M. Oddie , Sam Smonian
发明人： Terizhandur S. Ramakrishnan , Gary M. Oddie , Sam Smonian
IPC分类号： E21B4706
CPC分类号： E21B34/066 , E21B34/06 , E21B43/14 , E21B47/06 , E21B47/10 , E21B47/124 , G01F1/40
摘要： This invention comprises the use of a variable orifice valve as a flow controller and flow meter. Pressure measurements are taken upstream and downstream of the variable orifice valve by way of a differential pressure measurement mechanism. The differential pressure measurement mechanism may comprise two separate absolute pressure measurement devices or a single differential pressure measurement device. Flow rate through the valve is determined from the pressure drop across the valve. In wellbores having multiple zones, a variable orifice valve together with a differential pressure measurement mechanism may be deployed for each zone. The flow rate through each of the zones and at the surface can then be monitored and controlled.
摘要翻译：本发明包括使用可变孔口阀作为流量控制器和流量计。通过差压测量机构在可变孔口阀的上游和下游进行压力测量。差压测量机构可以包括两个单独的绝对压力测量装置或单个差压测量装置。通过阀门的流量由阀门上的压降决定。在具有多个区域的孔眼中，可以为每个区域部署可变节流阀以及差压测量机构。然后可以监测和控制通过每个区域和表面处的流量。

28. 发明授权

US08548785B2 Method for uncertainty quantification in the performance and risk assessment of a carbon dioxide storage site 有权
标题翻译：二氧化碳储存场地性能和风险评估中不确定性量化方法
公开(公告)号：US08548785B2
公开(公告)日：2013-10-01
申请号：US12768021
申请日：2010-04-27
申请人： Nikita V. Chugunov , Eric Leon Stabinski , Terizhandur S. Ramakrishnan , Romain de Loubens , Yusuf Bilgin Altundas , Laura Espinal
发明人： Nikita V. Chugunov , Eric Leon Stabinski , Terizhandur S. Ramakrishnan , Romain de Loubens , Yusuf Bilgin Altundas , Laura Espinal
IPC分类号： G06G7/48
CPC分类号： G01V11/00 , G01V2210/667
摘要： A CO2 sequestration site is evaluated by incorporating a consistent petrophysical framework having uncertainties expressed in the form of probability density functions of wellbore measurements, by systematically propagating the uncertainties in generating probability density functions or cumulative distribution functions of the parameters used in a reservoir simulation, by using the reservoir simulation to transform the first set of parameters into output variables with uncertainties, and by using the output variables and uncertainties to generate an answer product from which uncertainty levels of performance metrics can be ascertained.
摘要翻译：通过系统地传播在油藏模拟中使用的参数生成概率密度函数或累积分布函数的不确定性，通过结合具有以井眼测量的概率密度函数的形式表示的不确定性的一致的岩石物理框架来评估二氧化碳封存点，使用储层模拟将第一组参数转换为具有不确定性的输出变量，并通过使用输出变量和不确定性来生成答案产品，从而可以确定绩效指标的不确定性水平。

29. 发明申请

US20130025856A1 DUAL OR TWIN-WELL COMPLETION WITH WETTABILITY ALTERATION FOR SEGREGATED OIL AND WATER PRODUCTION 有权
标题翻译：双重或双重完整的水泥生产和水分生产的湿度变化
公开(公告)号：US20130025856A1
公开(公告)日：2013-01-31
申请号：US13191995
申请日：2011-07-27
申请人： Terizhandur S. Ramakrishnan , Paul S. Hammond , John M. Cook
发明人： Terizhandur S. Ramakrishnan , Paul S. Hammond , John M. Cook
IPC分类号： E21B43/14
CPC分类号： E21B43/38 , E21B43/385
摘要： A well completion and related method are provided for formations susceptible to simultaneous production of oil and water. In one embodiment, two closely spaced, preferably horizontal wellbores are drilled from a single well into the reservoir. The reservoir rock surrounding one leg (typically the upper leg) is chemically treated to make it hydrophobic, whereas the reservoir rock surrounding the other leg is chemically treated to make it hydrophilic. Separate production tubing and a dual completion is installed in order to enable independent flow from each leg. Drawdown pressures in both legs are controlled to be sufficiently close to each other such that only oil flows into one leg and only water into the other. The water produced is re-injected downhole or brought to the surface.
摘要翻译：为易于同时生产油和水的地层提供完井和相关方法。在一个实施例中，将两个紧密间隔的，优选水平的井筒从单井钻入储存器。围绕一条腿（通常是大腿）的储层岩石被化学处理以使其疏水，而围绕另一条腿的储层岩石被化学处理以使其亲水。安装独立的生产管道和双重完井，以实现每条腿的独立流动。控制两条腿中的压降压力彼此足够接近，使得只有油流入一条腿并且只有水流入另一条腿。产生的水重新注入井下或带到地面。

30. 发明申请

US20120101730A1 METHOD AND APPARATUS UTILIZING NUCLEAR MAGNETIC RESONANCE MEASUREMENTS FOR ESTIMATING RESIDUAL CARBON DIOXIDE SATURATION IN AQUIFIERS 有权
标题翻译：利用核磁共振测量方法和装置估算残留二氧化碳饱和度
公开(公告)号：US20120101730A1
公开(公告)日：2012-04-26
申请号：US12909116
申请日：2010-10-21
申请人： Nikita V. Chugunov , Terizhandur S. Ramakrishnan
发明人： Nikita V. Chugunov , Terizhandur S. Ramakrishnan
IPC分类号： G06F19/00
CPC分类号： G01V3/32 , G01N24/081 , G01V3/34
摘要： Percolation theory is applied to establish a connection between magnetization decay of nuclear magnetic resonance (NMR) measurements and residual carbon dioxide saturation (Scr). As a result, estimations of Scr are obtained through use of an NMR tool in a formation and appropriate processing. Data may be displayed as a log.
摘要翻译：应用渗透理论建立核磁共振（NMR）测量的磁化衰减与残留二氧化碳饱和度（Scr）之间的联系。结果，通过使用NMR工具在形成和适当的处理中获得Scr的估计。数据可能显示为日志。

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