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1.发明申请公开(公告)号：US20190227184A1
公开(公告)日：2019-07-25
申请号：US15876712
申请日：2018-01-22
Applicant: Schlumberger Technology Corporation
Inventor： Theo Cuny , Ali Ozbek , Arthur Hartog
Abstract: Techniques are disclosed that facilitate use of a distributed vibration sensing system for collecting data in a well application to provide improved collection of strain related data, such as for a seismic survey. The techniques facilitate selection of a variable optimal gauge length that optimally preserves the signal bandwidth and temporal resolution of the sensing system and that can be tuned using the actual apparent velocity and maximum recoverable frequency of the monitored parameters. Techniques for real-time processing of DVS data using a preliminary variable optimal gauge length are disclosed, as well as techniques for re-processing the DVS data at a later time using an updated variable optimal gauge length that is derived from the preliminary processing of the DVS data.
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公开(公告)号：US20170167245A1
公开(公告)日：2017-06-15
申请号：US15115533
申请日：2015-02-02
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Paul Frederick Cilgrim Dickenson , Gareth P. Lees , Arthur H. Hartog , Cheng-Gang Xie , Paul Simon Hammond , Ashley Bernard Johnson , Gary Martin Oddie , Andrew William Meredith , Franck Bruno Jean Monmont , Theo Cuny
CPC classification number: E21B47/0007 , E21B43/128 , E21B47/00 , E21B47/065 , E21B47/123 , G01N29/2418 , G01V1/40 , G01V1/50
Abstract: Monitoring one or more items of equipment associated with a borehole or other conduit. A sensor system includes a vibration sensor for sensing vibrations at one or more sensor locations associated with one or more items of the equipment and/or the borehole or other conduit. A processing system processes the sensor information to determine a characteristic of the operation of the one or more items of equipment and/or the borehole or other conduit.
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公开(公告)号：US10393921B2
公开(公告)日：2019-08-27
申请号：US15267347
申请日：2016-09-16
Applicant: Schlumberger Technology Corporation
Inventor： Theo Cuny , Alexis Constantinou , Paul Dickenson
Abstract: A method for calibrating a distributed vibration sensing system includes applying a localized calibration event, such as a temperature change, to at least one location along an optical fiber cable. Backscattered light generated the optical fiber while the localized calibration event is applied includes phase information having low frequency components. The center of energy of the low frequency components can be identified in order to generate a reference point along the fiber that can be used to generate a channel-depth calibration scale that can be applied to vibration data acquired from the fiber when used in various applications, such as borehole seismic surveying.
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Patent Agency Ranking
4.发明申请公开(公告)号：US20170075029A1
公开(公告)日：2017-03-16
申请号：US15267347
申请日：2016-09-16
Applicant: Schlumberger Technology Corporation
Inventor： Theo Cuny , Alexis Constantinou , Paul Dickenson
Abstract: A method for calibrating a distributed vibration sensing system includes applying a localized calibration event, such as a temperature change, to at least one location along an optical fiber cable. Backscattered light generated the optical fiber while the localized calibration event is applied includes phase information having low frequency components. The center of energy of the low frequency components can be identified in order to generate a reference point along the fiber that can be used to generate a channel-depth calibration scale that can be applied to vibration data acquired from the fiber when used in various applications, such as borehole seismic surveying.
Abstract translation: 用于校准分布式振动感测系统的方法包括将诸如温度变化的局部校准事件应用到沿着光纤电缆的至少一个位置。 反向散射光产生光纤，同时应用局部校准事件包括具有低频分量的相位信息。 可以识别低频分量的能量中心，以便产生沿着光纤的参考点，该参考点可用于产生通道深度校准量程，其可以应用于当在各种应用中使用时从光纤获取的振动数据 ，如井眼地震勘测。
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公开(公告)号：US20200233107A1
公开(公告)日：2020-07-23
申请号：US16635901
申请日：2018-07-29
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Alexis Constantinou , Arthur Hartog , Theo Cuny
Abstract: A distributed measurement system includes a first distributed optical sensing fiber deployed along a first desired measurement path and a second distributed optical sensing fiber deployed along a second desired measurement path. The system further includes an interrogation system coupled to the first distributed optical sensing fiber and to the second distributed optical sensing fiber. The system also includes a first distributed measuring instrument launch a first interrogating probe pulse set comprising a first pulse having a first frequency and a second pulse having a second frequency. The interrogation system is designed to direct the first pulse to the first distributed optical sensing fiber and the second pulse to the second distributed optical sensing fiber.
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公开(公告)号：US10451475B2
公开(公告)日：2019-10-22
申请号：US15537186
申请日：2016-01-07
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Timothy Dean , Theo Cuny , Arthur Hartog
Abstract: A technique facilitates the use and application of a distributed vibration sensing system in, for example, a well application. The technique enables selection of a desired gauge length to achieve an optimum trade-off between the spatial resolution of a distributed vibration sensing/distributed acoustic sensing system and signal-to-noise ratio. The optimum gauge length can vary according to specific factors, e.g. depth within a well, and the present technique can be used to account for such factors in selecting an optimal gauge length which facilitates accurate collection of data on dynamic strain.
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公开(公告)号：US11385368B2
公开(公告)日：2022-07-12
申请号：US16635901
申请日：2018-07-29
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Alexis Constantinou , Arthur Hartog , Theo Cuny
Abstract: A distributed measurement system includes a first distributed optical sensing fiber deployed along a first desired measurement path and a second distributed optical sensing fiber deployed along a second desired measurement path. The system further includes an interrogation system coupled to the first distributed optical sensing fiber and to the second distributed optical sensing fiber. The system also includes a first distributed measuring instrument launch a first interrogating probe pulse set comprising a first pulse having a first frequency and a second pulse having a second frequency. The interrogation system is designed to direct the first pulse to the first distributed optical sensing fiber and the second pulse to the second distributed optical sensing fiber.
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公开(公告)号：US10458224B2
公开(公告)日：2019-10-29
申请号：US15115533
申请日：2015-02-02
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Paul Frederick Cilgrim Dickenson , Gareth P. Lees , Arthur H. Hartog , Cheng-Gang Xie , Paul Simon Hammond , Ashley Bernard Johnson , Gary Martin Oddie , Andrew William Meredith , Franck Bruno Jean Monmont , Theo Cuny
Abstract: Monitoring one or more items of equipment associated with a borehole or other conduit. A sensor system includes a vibration sensor for sensing vibrations at one or more sensor locations associated with one or more items of the equipment and/or the borehole or other conduit. A processing system processes the sensor information to determine a characteristic of the operation of the one or more items of equipment and/or the borehole or other conduit.
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