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1. 发明授权

US06944548B2 Formation evaluation through azimuthal measurements 有权
标题翻译：通过方位测量进行形成评估
公开(公告)号：US06944548B2
公开(公告)日：2005-09-13
申请号：US10331747
申请日：2002-12-30
申请人： Richard J. Radtke , Michael L. Evans , Robert A. Adolph , Loïc Vildé , Nihal Ian Wijeyesekera
发明人： Richard J. Radtke , Michael L. Evans , Robert A. Adolph , Loïc Vildé , Nihal Ian Wijeyesekera
IPC分类号： E21B47/026 , G01V5/10 , G01V5/12
CPC分类号： G01V5/104 , E21B47/026 , G01V5/125
摘要： A method for formation logging includes acquiring measurements of neutron-induced signals having azimuthal information using a neutron tool; processing the measurements into a plurality of azimuthal sector data for each acquisition interval; and deriving a selected parameter from the plurality of azimuthal sector data. A logging tool includes a housing adapted to move in a borehole; a circuitry having memories for storing neutron-induced measurements; a neutron source disposed in the housing; and at least one detector bank disposed in the housing spaced apart from the neutron source, wherein each of the at least one detector bank comprises at least one detector disposed around a periphery of the housing such that the at least one detector is more sensitive to signals from an azimuthal direction, and wherein count rates detected by each of the at least one detector are separately stored in the memories.
摘要翻译：用于地层测井的方法包括采用中子工具获取具有方位信息的中子诱导信号的测量; 将测量值处理为每个采集间隔的多个方位扇区数据; 以及从所述多个方位角扇区数据中导出所选择的参数。测井工具包括适于在钻孔中移动的壳体; 具有用于存储中子诱导测量的存储器的电路; 设置在壳体中的中子源; 以及设置在所述壳体中与所述中子源间隔开的至少一个检测器组，其中所述至少一个检测器组中的每一个包括围绕所述壳体的外围设置的至少一个检测器，使得所述至少一个检测器对信号更敏感并且其中由所述至少一个检测器中的每一个检测到的计数率分别存储在所述存储器中。

2. 发明授权

US06903330B2 Multi-point subsurface measurement calibration 有权
标题翻译：多点地下测量校准
公开(公告)号：US06903330B2
公开(公告)日：2005-06-07
申请号：US10065303
申请日：2002-10-01
申请人： Michael L. Evans , Luca Ortenzi , Richard J. Radtke
发明人： Michael L. Evans , Luca Ortenzi , Richard J. Radtke
IPC分类号： G01V13/00 , G01D18/00
CPC分类号： G01V13/00
摘要： Techniques for calibrating well-logging sensors comprising emitting a first signal into a first calibration substance disposed proximate to the sensor, measuring a first sensor response from the first signal, emitting a second signal into a second calibration substance disposed proximate to the sensor, measuring a second sensor response from the second signal, and determining a sensor response function from the first sensor response and the second sensor response. One embodiment includes providing a well-logging sensor having a known response function, determining an expected range of a quality check response of the sensor using a quality-check substance with known properties, emitting a quality check signal into the quality-check substance, measuring the quality check response from the quality check signal, and comparing the expected range with the quality check response.
摘要翻译：用于校准测井传感器的技术，包括将第一信号发射到靠近传感器布置的第一校准物质中，测量来自第一信号的第一传感器响应，将第二信号发射到靠近传感器设置的第二校准物质，测量来自第二信号的第二传感器响应，以及从第一传感器响应和第二传感器响应确定传感器响应函数。一个实施例包括提供具有已知响应功能的测井传感器，使用具有已知性质的质量检查物质确定传感器的质量检查响应的期望范围，将质量检查信号发送到质量检查物质中，测量质量检查信号的质量检查响应，并将预期范围与质量检查响应进行比较。

3. 再颁专利

USRE36012E Accelerator-based methods and apparatus for measurement-while-drilling 失效
公开(公告)号：USRE36012E
公开(公告)日：1998-12-29
申请号：US710997
申请日：1996-09-25
申请人： William A. Loomis , Kenneth E. Stephenson , Jerome A. Truax , Wolfgang P. Ziegler , S. Zema Chowdhuri , Benoit Couet , Michael L. Evans , Paul Albats , Bradley A. Roscoe , Jacques M. Holenka , Keith A. Moriarty , William R. Sloan
发明人： William A. Loomis , Kenneth E. Stephenson , Jerome A. Truax , Wolfgang P. Ziegler , S. Zema Chowdhuri , Benoit Couet , Michael L. Evans , Paul Albats , Bradley A. Roscoe , Jacques M. Holenka , Keith A. Moriarty , William R. Sloan
IPC分类号： G01V5/10
CPC分类号： G01V5/104 , G01V5/101 , G01V5/107
摘要： Measurement-while-drilling apparatus includes a 14 MeV neutron accelerator, a near-spaced neutron detector which primarily senses source neutrons and whose output is proportional to source strength, one or more intermediately-spaced epithermal neutron detectors eccentered against the drill collar wall and primarily responsive to formation hydrogen concentration, and a third far-spaced radiation detector, either gamma ray or neutron, primarily responsive to formation density. The intermediately-spaced and far-spaced detector outputs, normalized by the near-spaced detector output, are combined to provide measurements of porosity, density and lithology and to detect gas. A thermal neutron detector and/or a gamma ray detector may also be provided at intermediate spacings to provide additional information of interest, such as standoff measurements and spectral analysis of formation composition. Tool outputs are related to the angular or azimuthal orientation of the measurement apparatus in the borehole.

4. 发明授权

US5804820A Method for determining density of an earth formation 失效
标题翻译：确定地层密度的方法
公开(公告)号：US5804820A
公开(公告)日：1998-09-08
申请号：US811309
申请日：1997-03-04
申请人： Michael L. Evans , Jacques M. Holenka
发明人： Michael L. Evans , Jacques M. Holenka
IPC分类号： G01N23/09 , G01N33/24 , G01T1/36 , G01T3/06 , G01V5/10 , H05H3/06
CPC分类号： G01V5/101 , G01V5/104 , G01V5/107
摘要： Apparatus for determining the density of underground formations surrounding a borehole, such as a wireline logging tool or a logging-while-drilling tool, includes a neutron source for irradiating the formations from within the borehole and at least one detector which detects neutrons and gamma rays in the borehole resulting from the irradiation of the formations with neutrons. Multiple detectors can also be used to separately detect neutrons and gamma rays. Detected neutron and gamma ray signals are each analyzed and combined to determine the density of an earth formation.
摘要翻译：用于确定钻孔围绕地下地层的密度的装置，例如电缆测井工具或钻井测井工具，包括用于从钻孔内照射地层的中子源和至少一个检测中子和伽马射线的检测器在由中子辐射形成的钻孔中。多个检测器也可用于分别检测中子和伽马射线。检测到的中子和伽马射线信号被分析和组合以确定地层的密度。

5. 发明授权

US06473899B1 Field configurable embedded computer system 有权
标题翻译：现场可配置嵌入式计算机系统
公开(公告)号：US06473899B1
公开(公告)日：2002-10-29
申请号：US09327410
申请日：1999-06-07
申请人： Eric L. Nelson , Michael L. Evans , Lance N. Shelton , Jared C. Roundy
发明人： Eric L. Nelson , Michael L. Evans , Lance N. Shelton , Jared C. Roundy
IPC分类号： G06F945
CPC分类号： G06F9/4411 , G06F8/65
摘要： An apparatus and method for downloading firmware upgrades to a targeted remote field configurable embedded computer system over a computer network. The targeted device need not be disconnected from the network and requires no human intervention at the remote side. The entire firmware, including the downloading mechanism, can be updated in an efficient manner.
摘要翻译：一种用于通过计算机网络将固件升级下载到目标远程现场可配置嵌入式计算机系统的装置和方法。目标设备不需要与网络断开连接，并且不需要在远端进行人为干预。可以有效地更新整个固件，包括下载机制。

6. 外观设计

USD336098S Buoyant eyeglass holder 失效
公开(公告)号：USD336098S
公开(公告)日：1993-06-01
申请号：US572373
申请日：1990-08-27
申请人： Michael L. Evans
设计人： Michael L. Evans

7. 发明授权

US5513528A Logging while drilling method and apparatus for measuring standoff as a function of angular position within a borehole 失效
标题翻译：作为钻孔内角度位置的函数的测量间隙的钻孔方法和装置进行测井
公开(公告)号：US5513528A
公开(公告)日：1996-05-07
申请号：US407725
申请日：1995-03-20
申请人： Jacques M. Holenka , Michael L. Evans , Philip L. Kurkoski , William R. Sloan , David L. Best
发明人： Jacques M. Holenka , Michael L. Evans , Philip L. Kurkoski , William R. Sloan , David L. Best
IPC分类号： E21B47/024 , E21B47/08 , G01V11/00 , G01V1/00
CPC分类号： G01V11/00 , E21B47/024 , E21B47/082 , Y10T307/438
摘要： A method and apparatus for measuring formation characteristics as a function of angular distance segments about the borehole is disclosed. The measurement apparatus includes a logging while drilling tool which turns in the borehole while drilling. Such characteristics as bulk density, photoelectric effect (PEF), neutron porosity and ultrasonic standoff are all measured as a function of such angular distance segments where one of such segments is defined to include that portion of a "down" or earth's gravity vector which is in a radial cross sectional plane of the tool. The measurement is accomplished with either a generally cylindrical tool which generally touches a down or bottom portion of the borehole while the tool rotates in an inclined borehole or with a tool centered by stabilizer blades in the borehole.
摘要翻译：公开了一种用于测量作为围绕钻孔的角距离段的函数的地层特性的方法和装置。测量装置包括在钻孔时在钻孔中钻孔的测井钻井工具。这些特征如体密度，光电效应（PEF），中子孔隙率和超声波间隔都是作为这样的角距离段的函数测量的，其中一个这样的段被定义为包括“下”或地球重力向量的那部分在工具的径向横截面中。测量使用大致圆柱形的工具来实现，该工具通常在钻孔的下部或底部接触，同时工具在倾斜的钻孔中旋转或者以井眼中的稳定器叶片为中心的工具。

8. 发明授权

US5086224A Analysis of nuclear data for determining characteristics of earth formations traversed by a borehole 失效
标题翻译：用于确定钻孔穿过的地层地层特征的核数据分析
公开(公告)号：US5086224A
公开(公告)日：1992-02-04
申请号：US612345
申请日：1990-11-13
申请人： Bradley A. Roscoe , Michael L. Evans
发明人： Bradley A. Roscoe , Michael L. Evans
IPC分类号： G01V5/10
CPC分类号： G01V5/104 , G01V5/101 , G01V5/107
摘要： A method for the determination of petrophysical characteristics of earth formation surrounding a borehole, comprising detecting gamma rays or neutrons representative of the formations and forming therefrom a set of detected data "U" which is then expressed as a function of the unknown characteristics "Y", and of a set of response data "S", representative of the conditions under which the detecting step is performed; and wherein "Y" is expressed as r=R Y, where "r" represents prior information independent from the detected data and obtained from other sources, and "R" indicates a set of relationships between at least part of the unknown characteristics. The detected data and response data are e.g. in the form of spectra, and the method may further include irradiating the formation with neutrons or gama rays.
摘要翻译：一种用于确定围绕钻孔的地球岩石的岩石物理特性的方法，包括检测表示地层的伽马射线或中子，并形成一组检测数据“U”，然后将其表示为未知特性“Y”的函数，以及一组响应数据“S”，代表执行检测步骤的条件; 并且其中“Y”表示为r = R Y，其中“r”表示独立于检测到的数据并从其他来源获得的先验信息，“R”表示至少部分未知特性之间的一组关系。检测到的数据和响应数据是例如。以光谱的形式，并且该方法还可以包括用中子或伽玛射线照射地层。

9. 发明授权

US06285026B1 Borehole caliper derived from neutron porosity measurements 有权
标题翻译：井眼卡尺来自中子孔隙度测量
公开(公告)号：US06285026B1
公开(公告)日：2001-09-04
申请号：US09281403
申请日：1999-03-30
申请人： Michael L. Evans , David L. Best
发明人： Michael L. Evans , David L. Best
IPC分类号： G01V510
CPC分类号： E21B47/082
摘要： A system for measuring the size of a borehole penetrating an earth formation is disclosed. The system uses a neutron source and a least one neutron detector. The neutron detector responds primarily to the composite hydrogen content of material within the borehole and formation upon irradiation by the neutron source. A partition response function is used to delineate the portion of the detector response resulting from borehole and from the formation. Since the detector response from the borehole can be isolated using the partition function and the hydrogen content of the borehole fluid is generally known, the size of the borehole can be determined from borehole response portion of the composite detector response if combined with a neutron porosity measurement of the formation. The neutron porosity measurement can be obtained independently, or by combining the neutron detector response with the response of a second neutron detector at a different axial spacing from the neutron source. The system is applicable in both logging-while-drilling and wireline logging operations.
摘要翻译：公开了一种用于测量穿透地层的钻孔尺寸的系统。该系统使用中子源和至少一个中子探测器。中子检测器主要响应于钻孔内的材料的复合氢含量和中子源照射时的形成。分区响应函数用于描绘由井眼和地层产生的检测器响应的部分。由于来自钻孔的检测器响应可以使用分隔功能隔离，并且钻孔流体的氢含量通常是已知的，所以如果与中子孔隙度测量结合，可以从复合探测器响应的钻孔响应部分确定钻孔的尺寸的形成。可以独立地获得中子孔隙度测量，或通过将中子探测器响应与第二个中子探测器在与中子源不同的轴向间距上的响应相结合来获得。该系统适用于钻井日志和有线日志记录操作。

10. 发明授权

US5608215A Method and apparatus for determining density of earth formations 失效
标题翻译：确定地层密度的方法和装置
公开(公告)号：US5608215A
公开(公告)日：1997-03-04
申请号：US599712
申请日：1996-02-12
申请人： Michael L. Evans
发明人： Michael L. Evans
IPC分类号： G01V5/10
CPC分类号： G01V5/104 , G01V5/101 , G01V5/107
摘要： Apparatus for determining the density of underground formations surrounding a borehole, such as a wireline logging tool or a logging-while-drilling tool, includes a high energy neutron source for irradiating the formations from within the borehole and a detector which detects gamma rays in the borehole resulting from the irradiation of the formations with high energy neutrons. The detected gamma rays are analyzed to determine the density of the formations.
摘要翻译：用于确定井眼周围的地下地层的密度的设备，例如电缆测井工具或钻井测井工具，包括用于从钻孔内照射地层的高能中子源，以及检测器中的伽马射线用高能中子照射地层造成的钻孔。分析检测到的伽马射线以确定地层的密度。

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