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1.发明授权Modified formation testing apparatus with borehole grippers and method of formation testing 失效具有钻孔夹具的修形地层试验装置和地层试验方法公开(公告)号：US06581455B1
公开(公告)日：2003-06-24
申请号：US09703645
申请日：2000-11-01
IPC分类号： E21B4708
CPC分类号： E21B21/103 , E21B33/1243 , E21B43/26 , E21B49/008 , E21B49/06 , E21B49/08 , E21B49/10
摘要： An apparatus and method for obtaining samples of pristine formation or; formation fluid, using a work string designed for performing other downhole work such as drilling, workover operations, or re-entry operations. An extendable element extends against the formation wall to obtain the pristine formation or fluid sample. The apparatus includes at least one extendable gripper element for anchoring the apparatus during testing and sampling operations.
摘要翻译： 一种用于获得原始形成样品的设备和方法; 地层流体，使用设计用于执行其他井下作业的工作柱，例如钻井，修井操作或重新进入操作。 可延伸元件抵靠地层壁延伸以获得原始地层或流体样品。 该装置包括用于在测试和取样操作期间锚定该装置的至少一个可延伸夹持元件。
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公开(公告)号：US06585045B2
公开(公告)日：2003-07-01
申请号：US09930618
申请日：2001-08-15
IPC分类号： E21B4700
CPC分类号： E21B49/10
摘要： An apparatus and method for determining permeability of a subterranean formation is provided. The apparatus and method comprise a work string, at least one selectively extendable member mounted on the work string to isolate a portion of the annular space between the work string and borehole. A predetermined distance proportional to the radius of a control port separates at least two ports in the work string. A sensor operatively associated with each port is mounted in the work string for measuring at least one characteristic such as pressure of the fluid in the isolated section.
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公开(公告)号：US06640908B2
公开(公告)日：2003-11-04
申请号：US10213865
申请日：2002-08-07
IPC分类号： E21B4910
CPC分类号： E21B44/00 , E21B49/008 , E21B49/10
摘要： A minimum volume apparatus and method is provided including a tool for obtaining at least one parameter of interest of a subterranean formation in-situ, the tool comprising a carrier member, a selectively extendable member mounted on the carrier for isolating a portion of annulus, a port exposable to formation fluid in the isolated annulus space, a piston integrally disposed within the extendable member for urging the fluid into the port, and a sensor operatively associated with the port for detecting at least one parameter of interest of the fluid.
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4.发明授权Apparatus and method for formation testing while drilling with minimum system volume 有权最小系统体积钻孔时的地层测试装置和方法公开(公告)号：US06478096B1
公开(公告)日：2002-11-12
申请号：US09621398
申请日：2000-07-21
IPC分类号： E21B4910
CPC分类号： E21B44/00 , E21B49/008 , E21B49/10
摘要： A minimum volume apparatus and method is provided including a tool for obtaining at least one parameter of interest of a subterranean formation in-situ, the tool comprising a carrier member, a selectively extendable member mounted on the carrier for isolating a portion of annulus, a port exposable to formation fluid in the isolated annulus space, a piston integrally disposed within the extendable member for urging the fluid into the port, and a sensor operatively associated with the port for detecting at least one parameter of interest of the fluid.
摘要翻译： 提供了一种最小体积的装置和方法，其包括用于在原地获得地下地层的至少一个目标参数的工具，所述工具包括载体构件，安装在载体上用于隔离环的一部分的选择性可延伸构件， 可暴露于隔离环空间内的地层流体的端口，整体地设置在可延伸构件内用于将流体推入端口的活塞以及与端口可操作地相关联的传感器，用于检测流体感兴趣的至少一个参数。
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公开(公告)号：US06609568B2
公开(公告)日：2003-08-26
申请号：US09910209
申请日：2001-07-20
IPC分类号： E21B4910
CPC分类号： E21B49/10 , E21B47/06 , E21B49/008 , G01V11/002
摘要： An apparatus and method capable of incrementally decreasing the borehole pressure at a variable rate by controlling a test volume within the borehole. The system includes an incrementally controllable pump, closed loop feedback and a controller for drawing down the pressure of a test volume to a level just below formation pressure. This incremental drawdown system will significantly reduce the overall measurement time, thereby increasing drilling efficiency and safety.
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公开(公告)号：US07346460B2
公开(公告)日：2008-03-18
申请号：US10872713
申请日：2004-06-21
申请人： Rocco DiFoggio , John M. Michaels , Jaedong Lee
发明人： Rocco DiFoggio , John M. Michaels , Jaedong Lee
CPC分类号： G01N7/00 , G01N9/28 , G01N33/2823 , G01N2013/0266
摘要： The present invention provides an objective bubble point pressure determination method enables new applications of downhole PV (Pressure Volume) test results such as in situ measurement of the bubble point pressure for use as a quality control parameter for sampling. The present invention provides a method and apparatus to fit data points to a curve and to smooth these points over an interval of N points. The derivative of the curve is determined to obtain peak acceleration. The peak acceleration represents the bubble point pressure. This bubble point pressure is verified by comparison to changes in fluid compressibility and visual observation of a pressure volume plot history.
摘要翻译： 本发明提供了一种客观的气泡点压力测定方法，可以将现场测量泡点压力的井下PV（压力体积）测试结果的新应用用作采样的质量控制参数。 本发明提供一种将数据点拟合到曲线上并在N个点的间隔上平滑这些点的方法和装置。 确定曲线的导数以获得峰值加速度。 峰值加速度表示泡点压力。 通过与压力容积图历史的流体压缩性和视觉观察的变化进行比较来验证该泡点压力。
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7.发明授权Determining fluid properties from pressure, volume and temperature measurements made by electric wireline formation testing tools 失效通过电线形成测试工具测定的压力，体积和温度测量值确定流体特性
公开(公告)号：US5635631A
公开(公告)日：1997-06-03
申请号：US490944
申请日：1995-06-15
申请人： Michael Yesudas , John M. Michaels , Saeed Rafie , Than Shwe
发明人： Michael Yesudas , John M. Michaels , Saeed Rafie , Than Shwe
CPC分类号： E21B49/008 , E21B49/10 , G01N33/2823 , G01N7/14
摘要： A method of determining an amount of dissolved gas in a fluid sample is disclosed. The method includes hydraulically confining and expanding the sample while measuring pressure and volume. A first volume and pressure are determined at which the rate of change in pressure with respect to volume deviates from a linear relationship. A second volume and pressure at which continued expansion of the fluid causes substantially no change in pressure is determined. The first pressure and volume are extrapolated by the linear relationship to intersect an extrapolation from the second volume and pressure at no change in pressure, thereby determining a bubble point comprising a bubble point pressure and a bubble point volume. A third pressure corresponding to measured pressure of the fluid sample at the bubble point volume is determined. An extrapolated sample volume is determined at the third pressure by extrapolating the linear relationship from the bubble point to a sample volume along the linear relationship corresponding to the third pressure. A volume of gas dissolved in the fluid sample is determined by linearly scaling a difference between the bubble point volume and the extrapolated sample volume with respect to a difference between the second volume and the bubble point volume.In a preferred embodiment of the invention, the sample is withdrawn into a sample chamber in an electric wireline formation test tool having a means for measuring pressure and volume of the sample chamber.
摘要翻译： 公开了一种确定流体样品中溶解气体量的方法。 该方法包括在测量压力和体积的同时液压地限制和膨胀样品。 确定压力相对于体积的变化率偏离线性关系的第一体积和压力。 确定流体的持续膨胀基本上不产生压力变化的第二体积和压力。 第一压力和体积通过线性关系外推，以与第二体积的外推和压力无变化相交，从而确定包含泡点压力和泡点体积的泡点。 确定对应于在泡点体积处的流体样品的测量压力的第三压力。 通过沿对应于第三压力的线性关系外推从气泡点到样品体积的线性关系，在第三压力下确定外推样品体积。 溶解在流体样品中的体积的气体通过相对于第二体积和泡点体积之间的差异线性缩放泡泡体积和外推样品体积之间的差异来确定。 在本发明的优选实施例中，将样品取回到具有用于测量样品室的压力和体积的装置的电缆线形成测试工具中的样品室中。
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公开(公告)号：US4507957A
公开(公告)日：1985-04-02
申请号：US495313
申请日：1983-05-16
CPC分类号： E21B49/10
摘要： Apparatus is provided for collecting a plurality of samples of fluids in earth formations traversed by a well bore. The sampling apparatus includes an elongated body member adapted to carry an extensible and retractible fluid admitting probe which is selectively placed in sealing engagement with potentially producible earth formations. The fluid admitting probe is coupled to a fluid passage which is selectively placed into fluid communication with a fluid sample collection chamber. A selectively controllable pressure control system located in the fluid passage intermediate the fluid admitting probe and the sample collection chamber allows the flowing pressure within the formation fluid sample line to be maintained at any selected pressure level functionally related to hydrostatic pressure during fluid sample collection.
摘要翻译： 设备用于收集由井眼穿过的地层中的多个流体样本。 采样设备包括细长本体构件，其适于携带可伸缩的流体入口探针，该探针选择性地与潜在可生产的地层结合密封接合。 流体允许探针联接到流体通道，该流体通道选择性地与流体样品收集室流体连通。 位于流体入口探针和样品收集室中间的流体通道中的选择性可控的压力控制系统允许地层流体样品管线内的流动压力保持在与流体样品收集期间的静水压力功能相关的任何选定的压力水平。
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公开(公告)号：US5770798A
公开(公告)日：1998-06-23
申请号：US599337
申请日：1996-02-09
CPC分类号： E21B49/008 , E21B49/10
摘要： An apparatus and method for evaluating formation damage proximate to the surface of a rock. The invention is applicable to surface tests and to tests downhole in a borehole. A first hollow probe sealingly contacts the rock surface to define a first surface area, and the pressure within the hollow probe is decreased to monitor resulting pressure changes. A second hollow probe contacts the rock surface to define a second surface area having a different size than the first surface area, and the pressure within the hollow second probe is decreased to monitor resulting pressure changes. Differences in the observed pressure changes can be analyzed to evaluate formation damage to the rock surface and near surface. In particular, the thickness of formation damage, and permeability losses caused by such damage, can be assessed. Alternatively, fluid pressure can be injected into the first and second volumes to evaluate the subsequent pressure reduction.
摘要翻译： 一种用于评估靠近岩石表面的地层损伤的装置和方法。 本发明适用于井眼测试和井下测试。 第一中空探针密封地接触岩石表面以限定第一表面区域，并且减小中空探针内的压力以监测所产生的压力变化。 第二中空探针接触岩石表面以限定具有与第一表面区域不同的尺寸的第二表面区域，并且降低中空第二探针内的压力以监测所产生的压力变化。 可以分析观察到的压力变化的差异，以评估对岩石表面和近地表的地层损伤。 特别是，可以评估地层损伤的厚度和由这种损伤引起的渗透性损失。 或者，可以将流体压力注入第一和第二体积以评估随后的压力降低。
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10.发明授权Electric wireline formation testing tool having temperature stabilized sample tank 失效具有温度稳定的样品罐的电线形成测试工具
公开(公告)号：US5549162A
公开(公告)日：1996-08-27
申请号：US498540
申请日：1995-07-05
IPC分类号： E21B49/10
CPC分类号： E21B49/10
摘要： The present invention is a sample tank for storing and transporting a fluid sample withdrawn from an earth formation by a formation fluid sampling tool. The sample tank includes a storage cylinder adapted to withstand high internal pressure. The storage cylinder is selectively hydraulically connected to the sampling tool for conducting the fluid sample into the storage cylinder. A fusible metal substantially surrounds the storage cylinder. The fusible metal has a melting temperature not more than the temperature of the fluid sample, so that solidification of the fusible metal maintains the fluid sample substantially at the melting temperature of the fusible metal during solidification of the fusible metal as the tool is withdrawn from the wellbore and cooled. The fusible metal is surrounded by an outer housing which contains the fusible metal when it is in a liquid state.
摘要翻译： 本发明是一种用于储存和输送通过地层流体采样工具从地层中取出的流体样品的样品槽。 样品罐包括适于承受高内压的储存筒。 存储筒选择性地液压地连接到采样工具，用于将流体样品导入储存筒。 易熔金属基本上围绕存储筒。 熔融金属的熔融温度不高于流体样品的温度，使得熔融金属的固化在熔融金属凝固期间将流体样品基本保持在易熔金属的熔化温度，因为工具从 井筒冷却。 易熔金属被外壳包围，外壳在液态时包含可熔金属。
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