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公开(公告)号：US20100000737A1
公开(公告)日：2010-01-07
申请号：US12167512
申请日：2008-07-03
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。
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公开(公告)号：US07152466B2
公开(公告)日：2006-12-26
申请号：US10351821
申请日：2003-01-27
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。
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公开(公告)号：US07096092B1
公开(公告)日：2006-08-22
申请号：US09705674
申请日：2000-11-03
申请人： Terizhandur S. Ramakrishnan , Raj Kumar Michael Thambynayagam , Peter Gerhard Tilke , Bhavani Raghuraman
发明人： Terizhandur S. Ramakrishnan , Raj Kumar Michael Thambynayagam , Peter Gerhard Tilke , Bhavani Raghuraman
摘要： A method of managing oil fields include installing oil field sensors, coupling them to a local CPU having memory, programming the CPU for data collection and data analysis, and coupling local oil field CPUs to a web server. Human experts are granted access to oil field data in real time via the Internet. The local CPUs provide different levels of data to the web server. The web server provides the option to view raw data, partially analyzed data, or fully analyzed data. The local CPUs are programmed with parameters for analyzing the data and automatically determining the presence of anomalies. Upon detecting the occurrence of an anomaly, the local CPUs are programmed to notify one or more human experts by email, pager, telephone, etc. If no human expert responds to the notification within a programmed period of time, the local CPU automatically takes a programmed corrective action.
摘要翻译： 一种管理油田的方法包括安装油田传感器，将其连接到具有存储器的本地CPU，对CPU进行数据采集和数据分析，并将局部油田CPU耦合到Web服务器。 人类专家可以通过互联网实时获取油田数据。 本地CPU为Web服务器提供不同级别的数据。 Web服务器提供查看原始数据，部分分析数据或完全分析数据的选项。 本地CPU通过参数进行编程，用于分析数据并自动确定是否存在异常。 当检测到异常的发生时，本地CPU被编程为通过电子邮件，寻呼机，电话等通知一个或多个人类专家。如果没有人类专家在编程的时间段内对通知进行响应，则本地CPU自动采取 编程纠正措施。
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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
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.
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公开(公告)号：US06629564B1
公开(公告)日：2003-10-07
申请号：US09672471
申请日：2000-09-28
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。
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26.发明授权Processing and interpretation of real-time data from downhole and surface sensors 有权从井下和表面传感器处理和解释实时数据公开(公告)号：US08612193B2
公开(公告)日：2013-12-17
申请号：US10442216
申请日：2003-05-20
申请人： Bhavani Raghuraman , Terizhandur S. Ramakrishnan , Kenneth E. Stephenson , Lalitha Venkataramanan , Jose Navarro
发明人： Bhavani Raghuraman , Terizhandur S. Ramakrishnan , Kenneth E. Stephenson , Lalitha Venkataramanan , Jose Navarro
摘要： In accordance with an embodiment of the present invention, a method of processing large volumes of data to allow for real-time reservoir management is disclosed, comprising: a) acquiring a first data series from a first reservoir sensor; b) establishing a set of criteria based on reservoir management objectives, sensor characteristics, sensor location, nature of the reservoir, and data storage optimization, etc.; c) identifying one or more subsets of the first data series meeting at least one of the criteria; and optionally d) generating one or more second data series based on at least one of the subsets. This methodology may be repeated for numerous reservoir sensors. This methodology allows for intelligent evaluation of sensor data by using carefully established criteria to intelligently select one or more subsets of data. In an alternative embodiment, sensor data from one or more sensors may be evaluated while processing data from a different sensor.
摘要翻译： 根据本发明的实施例，公开了一种处理大量数据以允许实时油藏管理的方法，包括：a）从第一油藏传感器获取第一数据序列; b）根据油藏管理目标，传感器特征，传感器位置，储层性质，数据存储优化等建立一套标准; c）识别符合所述标准中的至少一个的所述第一数据序列的一个或多个子集; 以及可选地d）基于所述子集中的至少一个生成一个或多个第二数据序列。 对于许多储层传感器可以重复该方法。 该方法允许通过使用仔细确定的标准智能地选择一个或多个数据子集来智能评估传感器数据。 在替代实施例中，可以在处理来自不同传感器的数据的同时评估来自一个或多个传感器的传感器数据。
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27.发明授权Method for uncertainty quantification in the performance and risk assessment of a carbon dioxide storage site 有权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。
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28.发明申请DUAL OR TWIN-WELL COMPLETION WITH WETTABILITY ALTERATION FOR SEGREGATED OIL AND WATER PRODUCTION 有权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
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。
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29.发明申请公开(公告)号：US20120101730A1
公开(公告)日：2012-04-26
申请号：US12909116
申请日：2010-10-21
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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30.发明授权Method and tool for evaluating fluid dynamic properties of a cement annulus surrounding a casing 有权用于评估套管周围的水泥环的流体动力特性的方法和工具公开(公告)号：US07753118B2
公开(公告)日：2010-07-13
申请号：US12180354
申请日：2008-07-25
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。
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