公开(公告)号：US20140285190A1

公开(公告)日：2014-09-25

申请号：US14355498

申请日：2012-10-31

申请人： SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER HOLDINGS LIMITED ,  SCHLUMBERGER TECHNOLOGY B.V. ,  PRAD RESEARCH AND DEVELOPMENT LIMITED ,  SCHLUMBERGER TECHNOLOGY CORPORATION

发明人： David F. Allen ,  George Bordakov ,  Steve F. Crary ,  Philip Savundararaj ,  Ramsin Eyvazzadeh ,  Edward Alan Clerke ,  Johannes J. Buiting ,  Paul Smith ,  Jim Funk

IPC分类号： G01V3/32 ,  G01R33/44

CPC分类号： G01V3/32 ,  G01N24/081 ,  G01R33/44 ,  G01R33/4625

摘要： A petrophysically regularized time domain nuclear magnetic resonance (NMR) inversion includes using an NMR tool to acquire NMR data and inverting the acquired NMR data in a time domain using petrophysical constraints. The inverted NMR data is analyzed. The petrophysical constraints may be identified by: determining a number of porobodons to seek, defining a plurality of zones in which only a subset of porobodon sets is present, and stacking all NMR echoes in each zone satisfying discriminators. The number of porobodons to seek may be based on knowledge of core samples, logs, and NMR sensitivity. The discriminator logs may be logs sensitive to porosity partitioning. A computing system having a processor, a memory, and a program stored in memory may be configured to perform the method. The system may be conveyed downhole on a wireline, a while-drilling drill string, a coiled tubing, a slickline, or a wired drill pipe.

摘要翻译： 岩石物理正则化的时域核磁共振（NMR）反演包括使用NMR工具获得NMR数据并且使用岩石物理学约束在时域反转获取的NMR数据。 分析反相NMR数据。 岩石物理学约束可以通过以下方式来确定：确定多个孔体以寻找多个区域，其中仅存在孔体组的子集，并且在满足鉴别器的每个区域中堆叠所有NMR回波。 要寻求的孔洞数量可能是基于核心样本，原木和核磁共振敏感性的知识。 鉴别器日志可能是对孔隙度划分敏感的日志。 具有处理器，存储器和存储在存储器中的程序的计算系统可以被配置为执行该方法。 该系统可以在电缆，同时钻井钻柱，盘管，钢丝绳或有线钻杆的井下传送。

公开(公告)号：US10353107B2

公开(公告)日：2019-07-16

申请号：US14355498

申请日：2012-10-31

申请人： SCHLUMBERGER TECHNOLOGY CORPORATION ,  SAUDI ARABIAN OIL COMPANY

发明人： David F. Allen ,  George Bordakov ,  Steve F. Crary ,  Philip Savundararaj ,  Ramsin Eyvazzadeh ,  Edward Alan Clerke ,  Johannes J. Buiting ,  Paul Smith ,  Jim Funk

IPC分类号： G01V3/32 ,  G01N24/08 ,  G01R33/44 ,  G01R33/46

摘要： A petrophysically regularized time domain nuclear magnetic resonance (NMR) inversion includes using an NMR tool to acquire NMR data and inverting the acquired NMR data in a time domain using petrophysical constraints. The inverted NMR data is analyzed. The petrophysical constraints may be identified by: determining a number of porobodons to seek, defining a plurality of zones in which only a subset of porobodon sets is present, and stacking all NMR echoes in each zone satisfying discriminators. The number of porobodons to seek may be based on knowledge of core samples, logs, and NMR sensitivity. The discriminator logs may be logs sensitive to porosity partitioning. A computing system having a processor, a memory, and a program stored in memory may be configured to perform the method. The system may be conveyed downhole on a wireline, a while-drilling drill string, a coiled tubing, a slickline, or a wired drill pipe.

公开(公告)号：US10330817B2

公开(公告)日：2019-06-25

申请号：US14993957

申请日：2016-01-12

申请人： Schlumberger Technology Corporation

发明人： George A. Bordakov ,  David F. Allen

IPC分类号： G01V3/32 ,  G01V3/14 ,  G01N24/08 ,  G01R33/44 ,  E21B47/00 ,  G01V3/38 ,  E21B43/14 ,  E21B43/26 ,  G01N15/08

摘要： A method for generating a porosity log for a reservoir in an organic shale. The method includes receiving data representing one or more parameters in a reservoir in an organic shale. At least one of the parameters includes porosity. By stochastically inverting the data, a distribution of porobodon features is estimated that matches an observed pulse decay curve. The porosity data relates to petrophysical restrictions on at least one of the porobodon features.

公开(公告)号：US20150276966A1

公开(公告)日：2015-10-01

申请号：US14669683

申请日：2015-03-26

申请人： Schlumberger Technology Corporation

发明人： Gong Li Wang ,  Thomas Barber ,  Peter Wu ,  David F. Allen ,  Aria Abubakar

IPC分类号： G01V3/20 ,  G01V99/00 ,  G01V3/38

CPC分类号： G01V3/38 ,  G01V3/28

摘要： A method for determining resistivity of subsurface formations includes generating an initial model of the formations from multiaxial electromagnetic transimpedance measurements, the model comprising values of vertical resistivity, horizontal resistivity, crossbed dip, crossbed azimuth, and bedding dip and azimuth. Expected measurements generated from the initial model measurements are decomposed into ordinary and extraordinary components. The actual tool measurements are compared to the summation of the expected decomposed measurement components. The initial model is adjusted, the expected decomposed components are recalculated and the foregoing are repeated until the difference between the actual tool measurements and the summation of the expected decomposed components falls below a selected threshold.

摘要翻译： 用于确定地下地层电阻率的方法包括从多轴电磁互阻测量产生地层的初始模型，该模型包括垂直电阻率，水平电阻率，交叉倾角，交叉方位角以及铺垫倾角和方位角的值。 从初始模型测量产生的预期测量值被分解为普通和非凡的组件。 将实际的刀具测量与预期分解的测量组件的总和进行比较。 调整初始模型，重新计算预期的分解组分，并重复上述内容，直到实际工具测量值与预期分解组分的总和之间的差值低于选定的阈值。

公开(公告)号：US20170003412A1

公开(公告)日：2017-01-05

申请号：US14993957

申请日：2016-01-12

申请人： Schlumberger Technology Corporation

发明人： George A. Bordakov ,  David F. Allen

IPC分类号： G01V3/32 ,  E21B47/00 ,  G01V3/38

CPC分类号： G01V3/32 ,  E21B43/14 ,  E21B43/26 ,  E21B47/00 ,  G01N15/088 ,  G01N24/081 ,  G01R33/448 ,  G01V3/14 ,  G01V3/38

摘要： A method for generating a porosity log for a reservoir in an organic shale. The method includes receiving data representing one or more parameters in a reservoir in an organic shale. At least one of the parameters includes porosity. By stochastically inverting the data, a distribution of porobodon features is estimated that matches an observed pulse decay curve. The porosity data relates to petrophysical restrictions on at least one of the porobodon features.

摘要翻译： 一种用于产生有机页岩中储层的孔隙度测井的方法。 该方法包括在有机页岩中的储层中接收表示一个或多个参数的数据。 至少一个参数包括孔隙度。 通过随机反转数据，估计porobodon特征的分布与观察到的脉冲衰减曲线相匹配。 孔隙度数据涉及至少一个孔波特征特征的岩石物理限制。

公开(公告)号：US10444399B2

公开(公告)日：2019-10-15

申请号：US14669683

申请日：2015-03-26

申请人： Schlumberger Technology Corporation

发明人： Gong Li Wang ,  Thomas Barber ,  Peter Wu ,  David F. Allen ,  Aria Abubakar

IPC分类号： G01V3/38 ,  G01V3/28

摘要： A method for determining resistivity of subsurface formations includes generating an initial model of the formations from multiaxial electromagnetic transimpedance measurements, the model comprising values of vertical resistivity, horizontal resistivity, crossbed dip, crossbed azimuth, and bedding dip and azimuth. Expected measurements generated from the initial model measurements are decomposed into ordinary and extraordinary components. The actual tool measurements are compared to the summation of the expected decomposed measurement components. The initial model is adjusted, the expected decomposed components are recalculated and the foregoing are repeated until the difference between the actual tool measurements and the summation of the expected decomposed components falls below a selected threshold.