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1. 发明申请

US20190129053A1 Methods and Systems for Determining Fast and Slow Shear Directions in an Anisotropic Formation Using A Logging While Drilling Tool 审中-公开
公开(公告)号：US20190129053A1
公开(公告)日：2019-05-02
申请号：US16093640
申请日：2017-04-13
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION
发明人： Pu Wang , Sandip Bose , Bikash Kumar Sinha , Ting Lei
IPC分类号： G01V1/50
摘要： Methods are provided for determining properties of an anisotropic formation (including both fast and slow formations) surrounding a borehole. A logging-while-drilling tool is provided that is moveable through the borehole. The logging-while drilling tool has at least one dipole acoustic source spaced from an array of receivers. During movement of the logging-while-drilling tool, the at least one dipole acoustic source is operated to excite a time-varying pressure field in the anisotropic formation surrounding the borehole. The array of receivers is used to measure waveforms arising from the time-varying pressure field in the anisotropic formation surrounding the borehole. The waveforms are processed to determine a parameter value that represents shear directionality of the anisotropic formation surrounding the borehole.

2. 发明授权

US12055672B2 System and method for generating slowness logs in thinly laminated formations 有权
公开(公告)号：US12055672B2
公开(公告)日：2024-08-06
申请号：US17288622
申请日：2019-10-24
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION
发明人： Ting Lei , Sandip Bose , Smaine Zeroug
IPC分类号： G01V1/50 , E21B47/14 , G01V1/46
CPC分类号： G01V1/50 , E21B47/14 , G01V1/46 , G01V2210/1429 , G01V2210/6169 , G01V2210/624 , G01V2210/74
摘要： A method, computer program product, and computing system for generating high resolution slowness logs. The method computer program product, and computing system includes receiving a plurality of sonic logs from at least one sensor array and generating at least one high-resolution slowness log from the plurality of sonic logs based upon, at least in part, monopole and dipole data from the plurality of sonic logs.

3. 发明授权

US10393905B2 Torsional wave logging 有权
公开(公告)号：US10393905B2
公开(公告)日：2019-08-27
申请号：US15238524
申请日：2016-08-16
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION
发明人： Bikash K. Sinha , Sandip Bose , Jiaqi Yang , Ting Lei , Tarek M. Habashy , Smaine Zeroug , Ma Luo
IPC分类号： G01V1/50 , G01V1/40 , E21B47/00
摘要： A method for torsional wave logging in a borehole of a subterranean formation. The method includes obtaining a torsional wave measurement of the borehole, wherein the torsional wave measurement represents characteristics of a torsional wave propagating within a cylindrical layered structure associated with the borehole, wherein the cylindrical layered structure comprises the subterranean formation and a completion of the borehole, analyzing, by a computer processor, the torsional wave measurement to generate a quality measure of the completion, and displaying the quality measure of the completion.

4. 发明授权

US09448321B2 Torsional wave logging 有权
标题翻译：扭转波测井
公开(公告)号：US09448321B2
公开(公告)日：2016-09-20
申请号：US13734728
申请日：2013-01-04
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION
发明人： Bikash K. Sinha , Sandip Bose , Jiaqi Yang , Ting Lei , Tarek M. Habashy , Smaine Zeroug , Ma Luo
IPC分类号： G01V1/50 , E21B47/00
CPC分类号： G01V1/50 , E21B47/0005
摘要： A method for torsional wave logging in a borehole of a subterranean formation. The method includes obtaining a torsional wave measurement of the borehole, wherein the torsional wave measurement represents characteristics of a torsional wave propagating within a cylindrical layered structure associated with the borehole, wherein the cylindrical layered structure comprises the subterranean formation and a completion of the borehole, analyzing, by a computer processor, the torsional wave measurement to generate a quality measure of the completion, and displaying the quality measure of the completion.
摘要翻译：一种地下地层井眼扭转波测井方法。该方法包括获得钻孔的扭转波测量，其中扭转波测量表示在与钻孔相关联的圆柱形分层结构内传播的扭转波的特征，其中圆柱形分层结构包括地层并完成钻孔，通过计算机处理器分析扭转波测量以产生完成的质量测量，并且显示完成的质量测量。

5. 发明授权

US09217807B2 Systems and methods for identifying sanding in production wells using time-lapse sonic data 有权
标题翻译：使用延时声波数据识别生产井中的砂光的系统和方法
公开(公告)号：US09217807B2
公开(公告)日：2015-12-22
申请号：US13949202
申请日：2013-07-23
申请人： Schlumberger Technology Corporation
发明人： Jiaqi Yang , Bikash K. Sinha , Ting Lei
IPC分类号： G01V1/00 , G01V1/40 , G01V1/50 , G01V1/48
CPC分类号： G01V1/40 , G01V1/48 , G01V1/50 , G01V2210/612 , G01V2210/6169
摘要： Systems and methods for identifying sanding in production wells using time-lapse sonic data. Formation anisotropy can be characterized in terms of shear moduli in a vertical wellbore, e.g., vertical shear moduli C44 and C55 in the wellbore axial planes and horizontal shear modulus C66 in the wellbore cross-sectional plane. Changes in formation anisotropy between different times can provide qualitative indicators of the occurrence of sanding in the production well. Before production begins, the horizontal shear modulus C66 is typically less than the vertical shear modulus C44 or C55 or both. At a subsequent time after sanding occurs, the horizontal shear modulus C66 is typically greater than the vertical shear modulus C44 or C55 or both. By comparing the shear moduli of the vertical wellbore at different times, it is possible to identify the occurrence of sanding in the production well using time-lapse sonic data.
摘要翻译：使用延时声波数据识别生产井中的砂光的系统和方法。形成各向异性可以用垂直井眼中的剪切模量来表征，例如在井眼轴向平面中的垂直剪切模量C44和C55以及井眼横截面中的水平剪切模量C66。不同时期地层各向异性的变化可以为生产井中砂磨发生提供定性指标。在生产开始之前，水平剪切模量C66通常小于垂直剪切模量C44或C55或两者。在砂光发生后的随后时间，水平剪切模量C66通常大于垂直剪切模量C44或C55或两者。通过比较不同时间垂直井筒的剪切模量，可以使用延时声波数据来识别生产井中砂磨的发生。

6. 发明授权

US12072462B2 Machine learning enhanced borehole sonic data interpretation 有权
公开(公告)号：US12072462B2
公开(公告)日：2024-08-27
申请号：US17618714
申请日：2020-06-13
申请人： Schlumberger Technology Corporation
发明人： Lin Liang , Ting Lei
IPC分类号： G01V1/50 , G01V1/46 , G06N3/08
CPC分类号： G01V1/50 , G01V1/46 , G06N3/08 , G01V2210/20 , G01V2210/626
摘要： The subject disclosure relates to the interpretation of borehole sonic data using machine learning. In one example of a method in accordance with aspects of the instant disclosure, borehole sonic data is received, and machine learning is used to interpret the borehole sonic data.

7. 发明授权

US11960043B2 Data driven method to invert for the formation anisotropic constants using borehole sonic data 有权
公开(公告)号：US11960043B2
公开(公告)日：2024-04-16
申请号：US17754395
申请日：2020-10-02
申请人： Schlumberger Technology Corporation
发明人： Ting Lei , Romain Prioul
IPC分类号： G01V1/50
CPC分类号： G01V1/50 , G01V2210/614 , G01V2210/6222 , G01V2210/626
摘要： A method is presented wherein inversion for formation anisotropic constants is achieved using borehole sonic data.

8. 发明申请

US20220244419A1 MACHINE LEARNING ENHANCED BOREHOLE SONIC DATA INTERPRETATION 有权
公开(公告)号：US20220244419A1
公开(公告)日：2022-08-04
申请号：US17618714
申请日：2020-06-13
申请人： Schlumberger Technology Corporation
发明人： Lin Liang , Ting Lei
IPC分类号： G01V1/50 , G06N3/08 , G01V1/46
摘要： The subject disclosure relates to the interpretation of borehole sonic data using machine learning. In one example of a method in accordance with aspects of the instant disclosure, borehole sonic data is received, and machine learning is used to interpret the borehole sonic data.

9. 发明授权

US11119237B2 Methods and systems for determining fast and slow shear directions in an anisotropic formation using a logging while drilling tool 有权
公开(公告)号：US11119237B2
公开(公告)日：2021-09-14
申请号：US16093640
申请日：2017-04-13
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION
发明人： Pu Wang , Sandip Bose , Bikash Kumar Sinha , Ting Lei
IPC分类号： G01V1/50 , G01V1/28
摘要： Methods are provided for determining properties of an anisotropic formation (including both fast and slow formations) surrounding a borehole. A logging-while-drilling tool is provided that is moveable through the borehole. The logging-while drilling tool has at least one dipole acoustic source spaced from an array of receivers. During movement of the logging-while-drilling tool, the at least one dipole acoustic source is operated to excite a time-varying pressure field in the anisotropic formation surrounding the borehole. The array of receivers is used to measure waveforms arising from the time-varying pressure field in the anisotropic formation surrounding the borehole. The waveforms are processed to determine a parameter value that represents shear directionality of the anisotropic formation surrounding the borehole.

10. 发明授权

US11015443B2 Estimation of horizontal stresses and nonlinear constants in anisotropic formations such as interbedded carbonate layers in organic-shale reservoirs 有权
公开(公告)号：US11015443B2
公开(公告)日：2021-05-25
申请号：US16306688
申请日：2017-05-31
申请人： Schlumberger Technology Corporation
发明人： Ting Lei , Smaine Zeroug , Bikash Kumar Sinha
IPC分类号： E21B49/00 , G01V1/30 , G01V1/46 , G01V1/50
摘要： Methods and systems are provided that identify relatively large anisotropic horizontal stresses in a formation based on (i) azimuthal variations in the compressional and shear slownesses or velocities of the formation measured from ultrasonic data acquired by at least one acoustic logging tool as well as (ii) cross-dipole dispersions of the formation measured from sonic data acquired by the at least one acoustic logging tool. In addition, the azimuthal variations in the compressional and shear slownesses or velocities of the formation and dipole flexural dispersions of the formation can be jointly inverted to obtain the elastic properties of the rock of the formation in terms of linear and nonlinear constants and the magnitude of maximum horizontal stress of the formation. A workflow for estimating the magnitude of the maximum horizontal stress can employ estimates of certain formation properties, such as overburden stress, magnitude of minimum horizontal stress, and pore pressure.

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