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公开(公告)号：US12024993B2
公开(公告)日：2024-07-02
申请号：US17539233
申请日：2021-12-01
Applicant: Schlumberger Technology Corporation
Inventor： Salma Benslimane , Josselin Kherroubi , Jean-Luc Le Calvez , Ram Sunder Kalyanraman , Mikhail Lemarenko , Thomas Berard , Kamaljeet Singh
IPC: E21B47/002 , E21B47/00 , E21B47/007 , G06T7/00
CPC classification number: E21B47/0025 , E21B47/006 , E21B47/007 , G06T7/001 , G06T7/97 , G06T2207/30136
Abstract: A system and method for detecting defects in a tubular structure installed in a wellbore extending into a subterranean formation. An input image of the tubular structure contains input data indicative of a characteristic of the tubular structure. A background image is determined based on the input image. The background image contains background data indicative of the characteristic of the tubular structure associated with manufacturing of the tubular structure. A defect image is determined based on a difference between the input image and the background image. The defect image contains defect data indicative of the characteristic of the tubular structure associated with defects in the tubular structure.
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公开(公告)号：US10114138B2
公开(公告)日：2018-10-30
申请号：US15338865
申请日：2016-10-31
Applicant: Schlumberger Technology Corporation
Inventor： Jean-Luc Le Calvez , Sylvain Thierry
Abstract: A method includes performing pulse echo measurements using a pulse echo tool. The method also includes detecting a casing collar using the pulse echo measurements performed by the pulse echo tool. The method further includes estimating a tool response of the pulse echo tool response at the casing collar using one or more processors based on the pulse echo measurement at the casing collar. The method also includes and removing the pulse echo tool response estimation from at least some of the pulse echo measurements not at the casing collar.
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公开(公告)号：US20160070018A1
公开(公告)日：2016-03-10
申请号：US14784597
申请日：2014-04-15
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Edward Nichols , Emmanuel Legendre , Jean-Luc Le Calvez
CPC classification number: G01V3/28 , E21B47/00 , E21B47/0905 , G01V3/38
Abstract: Systems, methods, and devices for compensating for environmental conditions on electromagnetic measurements are provided. For example, a downhole logging tool may include a first transmitter coil, a second transmitter coil, and a first receiver coil. The first transmitter coil may provide a first magnetic signal in a wellbore having a conductive casing. The second transmitter coil may provide a second magnetic signal in the wellbore. The first receiver may obtain a first measurement relating to the first magnetic signal and a second measurement relating to the second magnetic signal. The first receiver coil may be near enough to the first transmitter coil and the second transmitter coil to obtain measurements predominantly in the near field eddy current regime. A ratio of the first measurement and the second measurement may cancel environmental dependencies of the first receiver coil.
Abstract translation: 提供了用于补偿电磁测量环境条件的系统，方法和设备。 例如，井下测井工具可以包括第一发射器线圈，第二发射器线圈和第一接收器线圈。 第一发射器线圈可以在具有导电壳体的井眼中提供第一磁信号。 第二发射器线圈可以在井眼中提供第二磁信号。 第一接收机可以获得与第一磁信号有关的第一测量和与第二磁信号有关的第二测量。 第一接收器线圈可以靠近第一发射器线圈和第二发射器线圈以主要在近场涡流状态下获得测量。 第一测量和第二测量的比率可以消除第一接收器线圈的环境依赖性。
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公开(公告)号：US20230136442A1
公开(公告)日：2023-05-04
申请号：US18046516
申请日：2022-10-14
Applicant: Schlumberger Technology Corporation
Inventor： Andrew Hayman , Christoph Klieber , Jean-Luc Le Calvez , Thilo Brill
IPC: E21B47/005 , G01N29/04 , G01N29/42 , G01N29/11 , E21B47/107 , G01V1/40
Abstract: Systems and methods are provided for obtaining a flexural-attenuation measurement for cement evaluation that may be effective even for wells with relatively thick casings. A method includes emitting an acoustic signal at a casing in a well that excites the casing into generating an acoustic response signal containing acoustic waves, such as Lamb waves. The Lamb waves include flexural waves and extensional waves. The casing may be relatively large, having a thickness of at least 16 mm. The acoustic response signal may be detected and filtered to reduce a relative contribution of the extensional waves. This may correspondingly increase a relative contribution of the flexural waves. The filtered acoustic response signal may be used as a flexural-attenuation measurement for cement evaluation.
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公开(公告)号：US11473419B2
公开(公告)日：2022-10-18
申请号：US15973839
申请日：2018-05-08
Applicant: Schlumberger Technology Corporation
Inventor： Andrew Hayman , Christoph Klieber , Jean-Luc Le Calvez , Thilo Brill
IPC: G01V1/40 , E21B47/005 , G01N29/04 , G01N29/42 , G01N29/11 , E21B47/107
Abstract: Systems and methods are provided for obtaining a flexural-attenuation measurement for cement evaluation that may be effective even for wells with relatively thick casings. A method includes emitting an acoustic signal at a casing in a well that excites the casing into generating an acoustic response signal containing acoustic waves, such as Lamb waves. The Lamb waves include flexural waves and extensional waves. The casing may be relatively large, having a thickness of at least 16 mm. The acoustic response signal may be detected and filtered to reduce a relative contribution of the extensional waves. This may correspondingly increase a relative contribution of the flexural waves. The filtered acoustic response signal may be used as a flexural-attenuation measurement for cement evaluation.
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Patent Agency Ranking
公开(公告)号：US10012753B2
公开(公告)日：2018-07-03
申请号：US14784597
申请日：2014-04-15
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Edward Nichols , Emmanuel Legendre , Jean-Luc Le Calvez
CPC classification number: G01V3/28 , E21B47/00 , E21B47/0905 , G01V3/38
Abstract: Systems, methods, and devices for compensating for environmental conditions on electromagnetic measurements are provided. For example, a downhole logging tool may include a first transmitter coil, a second transmitter coil, and a first receiver coil. The first transmitter coil may provide a first magnetic signal in a wellbore having a conductive casing. The second transmitter coil may provide a second magnetic signal in the wellbore. The first receiver may obtain a first measurement relating to the first magnetic signal and a second measurement relating to the second magnetic signal. The first receiver coil may be near enough to the first transmitter coil and the second transmitter coil to obtain measurements predominantly in the near field eddy current regime. A ratio of the first measurement and the second measurement may cancel environmental dependencies of the first receiver coil.
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公开(公告)号：US20160177710A1
公开(公告)日：2016-06-23
申请号：US14972855
申请日：2015-12-17
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Jean-Luc Le Calvez
CPC classification number: E21B49/00 , E21B47/0005 , G01N29/0654 , G01N29/4472 , G01N2291/0232 , G01N2291/02441 , G01N2291/0245 , G01N2291/0251 , G01V1/44 , G01V1/50 , G06T7/0004 , G06T2207/30132
Abstract: Embodiments of the disclosure may include systems and methods for evaluating gas-contaminated cement. In one embodiment, a vector-valued image of cement state probability may be obtained from an acoustic logging tool, and a maximum a posterior classification of cement state of the vector-valued image may be determined. A vector probability diffusion equation may be used to minimize the total variation of the vector-valued image over a number of interactions to produce a second image. The maximum a posterior classification of cement state the second image may be determined and compared to the maximum a posterior classification of cement state of the vector-valued image. Depending on the comparison, the original image and cement state may be used or a new gas-contaminated image with a different cement state may be generated.
Abstract translation: 本公开的实施例可以包括用于评估气体污染的水泥的系统和方法。 在一个实施例中，可以从声学测井工具获得水泥状态概率的向量值图像，并且可以确定向量值图像的水泥状态的最大后验分类。 可以使用向量概率扩散方程来最小化多个相互作用以产生第二图像的向量值图像的总变化。 水泥状态的最大后验分类可以确定第二图像，并与向量值图像的水泥状态的最大后验分类进行比较。 根据比较，可以使用原始图像和水泥状态，或者可能产生具有不同水泥状态的新的气体污染图像。
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公开(公告)号：US12091960B2
公开(公告)日：2024-09-17
申请号：US17753489
申请日：2020-09-04
Applicant: Schlumberger Technology Corporation
Inventor： Ram Sunder Kalyanraman , Sebastien Roche , Claude Signer , Guillaume Borrel , Thomas Barrou , Jean-Luc Le Calvez , Bo Ding , Vassilis Varveropoulos , Mikhail Lemarenko , Josselin Kherroubi
IPC: E21B47/005 , E21B44/00
CPC classification number: E21B47/005 , E21B44/00 , E21B2200/20
Abstract: A system for wireline service planning and advising includes a receiver, one or more computing system processors, and a transmitter. The receiver is configured to receive, from a user of the system, an objective parameter for interpreting a state of a well barrier. The one or more computing system processors is in communication with the receiver and configured to generate a plurality of candidate services based on the objective parameter and a model of the well barrier, each candidate service specifying sensor data to be acquired using wireline tools, select at least one wireline service from the wireline candidate services based on a selection logic or input by the user, and generate an execution plan specifying operational parameters of the selected wireline service. The transmitter is in communication with the one or more computing system processors and configured to transmit the execution plan to execute the selected wireline service at a wellsite.
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公开(公告)号：US12055032B2
公开(公告)日：2024-08-06
申请号：US18046516
申请日：2022-10-14
Applicant: Schlumberger Technology Corporation
Inventor： Andrew Hayman , Christoph Klieber , Jean-Luc Le Calvez , Thilo Brill
IPC: G01V1/40 , E21B47/005 , E21B47/107 , G01N29/04 , G01N29/11 , G01N29/42
CPC classification number: E21B47/005 , E21B47/107 , G01N29/041 , G01N29/11 , G01N29/42 , G01V1/40 , G01N2291/0232 , G01N2291/0427 , G01N2291/2636
Abstract: Systems and methods are provided for obtaining a flexural-attenuation measurement for cement evaluation that may be effective even for wells with relatively thick casings. A method includes emitting an acoustic signal at a casing in a well that excites the casing into generating an acoustic response signal containing acoustic waves, such as Lamb waves. The Lamb waves include flexural waves and extensional waves. The casing may be relatively large, having a thickness of at least 16 mm. The acoustic response signal may be detected and filtered to reduce a relative contribution of the extensional waves. This may correspondingly increase a relative contribution of the flexural waves. The filtered acoustic response signal may be used as a flexural-attenuation measurement for cement evaluation.
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公开(公告)号：US20230167732A1
公开(公告)日：2023-06-01
申请号：US17539233
申请日：2021-12-01
Applicant: Schlumberger Technology Corporation
Inventor： Salma Benslimane , Josselin Kherroubi , Jean-Luc Le Calvez , Ram Sunder Kalyanraman , Mikhail Lemarenko , Thomas Berard , Kamaljeet Singh
IPC: E21B47/002 , E21B47/007 , G06T7/00 , E21B47/00
CPC classification number: E21B47/0025 , E21B47/007 , G06T7/001 , G06T7/97 , E21B47/006 , G06T2207/30136
Abstract: A system and method for detecting defects in a tubular structure installed in a wellbore extending into a subterranean formation. An input image of the tubular structure contains input data indicative of a characteristic of the tubular structure. A background image is determined based on the input image. The background image contains background data indicative of the characteristic of the tubular structure associated with manufacturing of the tubular structure. A defect image is determined based on a difference between the input image and the background image. The defect image contains defect data indicative of the characteristic of the tubular structure associated with defects in the tubular structure.
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