公开(公告)号：US06518758B1

公开(公告)日：2003-02-11

申请号：US10242593

申请日：2002-09-12

申请人： Peter Speier ,  Julian Pop ,  Martin Poitzsch

发明人： Peter Speier ,  Julian Pop ,  Martin Poitzsch

IPC分类号： G01V300

CPC分类号： G01V3/32 ,  G01N24/081 ,  G01R33/563

摘要： The present invention provides methods and apparatus for determining flow velocity within a formation utilizing nuclear magnetic resonance (NMR) techniques in which the shape of the resonance region is restricted so that sensitivity to radial flow or vertical flow is obtained (or both when more than one NMR tool is used). Flow velocity using these NMR tools is determined using decay amplitude, frequency displacement or stimulated echoes (where the spins are stored along the magnetic field instead of the transverse plane to exploit echo decays and frequency displacements) based on the application of adiabatic pulses. Based on the described NMR measurement of flow velocity, additional wellbore parameters may be obtained such as a direct measurement of permeability, an assessment of drilling damage to the wellbore, formation pressure, invasion rate of the mud filtrate or the migration of fine mud particles during sampling operations.

公开(公告)号：US20140096979A1

公开(公告)日：2014-04-10

申请号：US13645875

申请日：2012-10-05

申请人： Pierre Yves Corre ,  Jean Louis Pessin ,  Julian Pop ,  Stéphane Metayer ,  Stephen Yeldell

发明人： Pierre Yves Corre ,  Jean Louis Pessin ,  Julian Pop ,  Stéphane Metayer ,  Stephen Yeldell

IPC分类号： E21B33/127

CPC分类号： E21B33/127 ,  E21B49/082

摘要： A packer assembly with an enhanced sealing layer is provided. The packer assembly may have an outer bladder with drains. The packer assembly may further have an inflatable inner packer disposed inside the outer bladder such that inflation of the inner packer causes the outer bladder to expand. End pieces may be coupled to the inner bladder and the outer bladder, and flowlines may be in fluid communication with the drains and the end pieces. A piston ring may reinforce the packer assembly. The piston ring may have three or more passive pistons which expand with the packer assembly during testing.

摘要翻译： 提供了具有增强的密封层的封隔器组件。 封隔器组件可以具有带有排水沟的外部囊。 封隔器组件还可以具有设置在外囊内的可充气内封隔器，使得内封隔器的充气导致外囊膨胀。 端件可以联接到内囊和外囊，并且流线可以与排水管和端件流体连通。 活塞环可以增强封隔器组件。 活塞环可以具有三个或更多个被动活塞，其在测试期间与封隔器组件一起膨胀。

公开(公告)号：US07680600B2

公开(公告)日：2010-03-16

申请号：US11828082

申请日：2007-07-25

申请人： Andrew Carnegie ,  Kai Hsu ,  Julian Pop

发明人： Andrew Carnegie ,  Kai Hsu ,  Julian Pop

IPC分类号： G06F17/00 ,  G06F17/40 ,  G06F19/00

CPC分类号： G01V1/48

摘要： A method for data processing includes transforming measurement data acquired in the time domain during an oilfield operation into a second domain to produce transformed data; identifying distortions in the transformed data; removing the distortions from the transformed data; and transforming back from the second domain to the time domain to produce cleaned-up data. The transforming measurement data may use a Fourier transform or a wavelet transform. The method may further include compressing the cleaned-up data or reconstructing signals from the cleaned-up data. A method for data processing includes decomposing measurement data, which are acquired in an oilfield operation, using a low pass filter to produce a first dataset; decomposing the measurement data using a high pass filter to produce a second dataset; removing distortions from the second dataset to yield a corrected second dataset; and reconstructing a corrected dataset from the first dataset and the corrected second dataset.

摘要翻译： 一种用于数据处理的方法包括将在油田操作期间在时域获取的测量数据转换成第二域以产生变换数据; 识别变换数据中的扭曲; 从转换的数据中消除扭曲; 并从第二个域转换到时域以产生清理数据。 变换测量数据可以使用傅里叶变换或小波变换。 该方法还可以包括压缩清理数据或从清理数据重构信号。 一种用于数据处理的方法包括使用低通滤波器分解在油田操作中获取的测量数据以产生第一数据集; 使用高通滤波器分解测量数据以产生第二数据集; 去除第二数据集的失真以产生校正的第二数据集; 以及从所述第一数据集和所述校正的第二数据集重构校正数据集。

公开(公告)号：US20090165548A1

公开(公告)日：2009-07-02

申请号：US11968026

申请日：2007-12-31

申请人： Julian Pop ,  Jean-Marc Follini

发明人： Julian Pop ,  Jean-Marc Follini

IPC分类号： E21B47/06

CPC分类号： E21B49/008

摘要： Examples of techniques for analyzing well data which may be encountered during formation testing are disclosed. Certain portions of the tests may exhibit an indication of anomalous behavior, defects, errors or events that may have occurred during testing. One or more confidence tokens may be identified during or after the execution of a test. One or more of these confidence tokens may be analyzed to determine whether such anomalous behavior, defects, errors or events have occurred during the test. These confidence tokens may then be used to determine a level of confidence in the results derived from the tests performed and/or their underlying data and interpretation.

摘要翻译： 公开了用于分析在形成测试期间可能遇到的井数据的技术的示例。 测试的某些部分可能表现出在测试期间可能发生的异常行为，缺陷，错误或事件的指示。 可以在执行测试期间或之后识别一个或多个置信令牌。 可以分析这些置信令中的一个或多个，以确定在测试期间是否发生了这样的异常行为，缺陷，错误或事件。 然后可以使用这些置信令牌来确定从执行的测试和/或其基础数据和解释得到的结果的置信度。

公开(公告)号：US20070175273A1

公开(公告)日：2007-08-02

申请号：US10989185

申请日：2004-11-15

申请人： Jean-Marc Follini ,  Julian Pop

发明人： Jean-Marc Follini ,  Julian Pop

IPC分类号： E21B49/10

CPC分类号： E21B47/10 ,  E21B49/008 ,  E21B49/10

摘要： An apparatus and method for determining at least one downhole formation property is disclosed. The apparatus includes a probe and a pretest piston positionable in fluid communication with the formation, and a series of flowlines pressure gauges, and valves configured to selectively draw into the apparatus for measurement of one of formation fluid and mud. The method includes performing a first pretest to determine an estimated formation parameter; using the first pretest to design a second pretest and generate refined formation parameters whereby formation properties may be estimated.

摘要翻译： 公开了一种用于确定至少一个井下形成特性的装置和方法。 该装置包括可与地层流体连通的探头和预测试活塞，以及一系列流量计压力计和阀，其被配置为选择性地吸入装置以测量地层流体和泥浆中的一种。 该方法包括执行第一预测试以确定估计的地层参数; 使用第一预测试来设计第二预测试并产生精细的地层参数，从而可以估计地层性质。

公开(公告)号：US20060101905A1

公开(公告)日：2006-05-18

申请号：US11274707

申请日：2005-11-15

申请人： Simon Bittleston ,  Jonathan Brown ,  Julian Pop ,  Ashley Kishino ,  Christopher Del Campo

发明人： Simon Bittleston ,  Jonathan Brown ,  Julian Pop ,  Ashley Kishino ,  Christopher Del Campo

IPC分类号： E21B49/10 ,  E21B47/00

CPC分类号： E21B49/10

摘要： A method of sampling fluid from a rock formation penetrated by a borehole includes positioning a downhole tool having a flow line in the borehole, establishing an inlet port through which fluid passes from a first point in the formation into the flow line, establishing an outlet port through which fluid passes from the flow line into a second point in the formation, and passing fluid between the formation and the flow line through the inlet and outlet ports.

公开(公告)号：US07036579B2

公开(公告)日：2006-05-02

申请号：US10989165

申请日：2004-11-15

申请人： Jean-Marc Follini ,  Julian Pop

发明人： Jean-Marc Follini ,  Julian Pop

IPC分类号： E21B49/10

CPC分类号： E21B47/10 ,  E21B49/008 ,  E21B49/10

摘要： An apparatus and method for determining at least one downhole formation property is disclosed. The apparatus includes a probe and a pretest piston positionable in fluid communication with the formation, and a series of flowlines pressure gauges, and valves configured to selectively draw into the apparatus for measurement of one of formation fluid and mud. The method includes performing a first pretest to determine an estimated formation parameter; using the first pretest to design a second pretest and generate refined formation parameters whereby formation properties may be estimated.

摘要翻译： 公开了一种用于确定至少一个井下形成特性的装置和方法。 该装置包括可与地层流体连通的探头和预测试活塞，以及一系列流量计压力计和阀，其被配置为选择性地吸入装置以测量地层流体和泥浆中的一种。 该方法包括执行第一预测试以确定估计的地层参数; 使用第一预测试来设计第二预测试并产生精细的地层参数，从而可以估计地层性质。

公开(公告)号：US07024930B2

公开(公告)日：2006-04-11

申请号：US10989158

申请日：2004-11-15

申请人： Jean-Marc Follini ,  Julian Pop

发明人： Jean-Marc Follini ,  Julian Pop

IPC分类号： E21B47/12 ,  E21B47/10 ,  E21B47/00

CPC分类号： E21B47/10 ,  E21B49/008 ,  E21B49/10

摘要： An apparatus and method for determining at least one downhole formation property is disclosed. The apparatus includes a probe and a pretest piston positionable in fluid communication with the formation, and a series of flowlines pressure gauges, and valves configured to selectively draw into the apparatus for measurement of one of formation fluid and mud. The method includes performing a first pretest to determine an estimated formation parameter; using the first pretest to design a second pretest and generate refined formation parameters whereby formation properties may be estimated.

公开(公告)号：US20050279499A1

公开(公告)日：2005-12-22

申请号：US10710111

申请日：2004-06-18

申请人： Jeffrey Tarvin ,  Julian Pop ,  Simon Bittleston ,  Angus Melbourne ,  Rogerio Ramos

发明人： Jeffrey Tarvin ,  Julian Pop ,  Simon Bittleston ,  Angus Melbourne ,  Rogerio Ramos

IPC分类号： E21B33/12 ,  E21B33/13 ,  E21B43/12 ,  E21B49/08 ,  E21B49/10

CPC分类号： E21B49/10

摘要： Methods and apparatuses for sampling fluid from a subterranean formation penetrated by a wellbore are provided. The subterranean formation has clean formation fluid therein, and the wellbore has a contaminated fluid therein extending into an invaded zone about the wellbore. A shaft is extended from a housing and positioned in a perforation in a sidewall of the wellbore. At least one flowline extends through the shaft and into the housing. The flowline(s) are adapted to receive downhole fluids through the perforation. At least one fluid restrictor, such as a packer, injection fluid or flow inhibitor, may be used to isolate at least a portion of the perforation whereby contaminated fluid is prevented from entering the isolated portion of the perforation. At least one pump selectively draws fluid into the flowline(s).

摘要翻译： 提供了用于从井眼渗透的地层中取样流体的方法和装置。 地层在其中具有清洁的地层流体，并且井筒中的污染流体延伸到围绕井筒的侵入区域中。 轴从壳体延伸并且定位在井眼的侧壁中的穿孔中。 至少一条流线穿过轴延伸到壳体中。 流线适于通过穿孔接收井下流体。 可以使用至少一个流体限制器，例如封隔器，注射流体或阻流剂来隔离穿孔的至少一部分，从而防止被污染的流体进入穿孔的隔离部分。 至少一个泵选择性地将流体吸入流线。

公开(公告)号：US06832515B2

公开(公告)日：2004-12-21

申请号：US10237394

申请日：2002-09-09

申请人： Jean-Marc Follini ,  Julian Pop

发明人： Jean-Marc Follini ,  Julian Pop

IPC分类号： E21B4706

CPC分类号： E21B47/10 ,  E21B49/008 ,  E21B49/10

摘要： An apparatus and method for determining at least one downhole formation property is disclosed. The apparatus includes a probe and a pretest piston positionable in fluid communication with the formation, and a series of flowlines pressure gauges, and valves configured to selectively draw into the apparatus for measurement of one of formation fluid and mud. The method includes performing a first pretest to determine an estimated formation parameter; using the first pretest to design a second pretest and generate refined formation parameters whereby formation properties may be estimated.

摘要翻译： 公开了一种用于确定至少一个井下形成特性的装置和方法。 该装置包括可与地层流体连通的探头和预测试活塞，以及一系列流量计压力计和阀，其被配置为选择性地吸入装置以测量地层流体和泥浆中的一种。 该方法包括执行第一预测试以确定估计的地层参数; 使用第一预测试来设计第二预测试并产生精细的地层参数，从而可以估计地层性质。