公开(公告)号：US12147005B2

公开(公告)日：2024-11-19

申请号：US17310167

申请日：2020-01-22

Applicant: Schlumberger Technology Corporation

Inventor： Hiroshi Hori ,  Kenji Endo ,  Mika Uno

IPC: G01V1/50 ,  E21B47/002 ,  E21B47/0224 ,  E21B47/04 ,  E21B47/14 ,  E21B47/26 ,  E21B49/00 ,  G01V1/46

Abstract: A method can include, using a downhole tool, acquiring ultrasonic echo data of a borehole, where the ultrasonic echo data include echoes representative of material and borehole geometry responsive to reflection of ultrasonic energy that has a wide-band frequency range; filtering the ultrasonic echo data using at least one selected filter for multi-band frequency filtering corresponding to different frequency ranges of the wide-band frequency range to generate filtered data; and processing the filtered data to generate attribute values representative of physical characteristics the material, the borehole geometry, or the material and the borehole geometry.

公开(公告)号：US09091154B2

公开(公告)日：2015-07-28

申请号：US13851971

申请日：2013-03-28

Applicant: Schlumberger Technology Corporation

Inventor： Nalin Weerasinghe ,  Tadashi Tajima ,  Motohiro Nakanouchi ,  David Santoso ,  Kenji Endo

IPC: E21B47/12 ,  G02B6/38

CPC classification number: E21B47/122 ,  E21B47/12 ,  G02B6/3817

Abstract: Systems, apparatuses, and methods for hybrid cable telemetry. The methods can include positioning a toolstring in a wellbore. The toolstring can include an uphole telemetry cartridge and a downhole telemetry cartridge respectively adapted to send and receive telemetry data. The toolstring can also include a hybrid logging cable having optical fibers and copper conductors that can operatively couple the uphole telemetry cartridge to the downhole telemetry cartridge. The method can also include transferring data between the uphole telemetry cartridge and the downhole telemetry cartridge across the optical fibers and the copper conductors. The method can further include measuring a data transmission rate on the optical fibers and the copper conductors. The method can also include comparing the data transmission rate to a predetermined threshold. The method can further include detecting a data transmission failure when the data transmission rate falls below the predetermined threshold.

Abstract translation: 混合电缆遥测的系统，装置和方法。 这些方法可以包括将工具串定位在井眼中。 工具串可以包括分别适于发送和接收遥测数据的井上遥测盒和井下遥测盒。 工具串还可以包括具有光纤和铜导体的混合测井电缆，其可操作地将井上遥测盒连接到井下遥测盒。 该方法还可以包括通过光纤和铜导体在井上遥测盒和井下遥测盒之间传送数据。 该方法还可以包括测量光纤和铜导体上的数据传输速率。 该方法还可以包括将数据传输速率与预定阈值进行比较。 该方法还可以包括当数据传输速率低于预定阈值时检测数据传输故障。

公开(公告)号：US20140152456A1

公开(公告)日：2014-06-05

申请号：US13705124

申请日：2012-12-04

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Alex Olson ,  Nalin Weerasinghe ,  Milos Milosevic ,  Kun Wang ,  Motohiro Nakanouchi ,  Kenji Endo ,  Yuichi Kobayashi ,  Hiromasa Nishisaka

IPC: G01V3/18

CPC classification number: G01V3/18 ,  E21B47/12

Abstract: Methods and systems for failure point diagnostics in cable telemetry at a wellsite. The methods involve providing a system includes a cable operatively coupling between a surface modem and a downhole modem that is operatively coupled to a downhole toolstring of one or more downhole tools via a toolbus. The methods further involve generating a plurality of test signals, sequentially applying the test signals across one or more test loops in the cable telemetry system, and generating a failure point alert when at least one of the test signals fails in at least one of the test loops. The failure point alert identifies which component of the cable telemetry system caused the test signal to fail.

Abstract translation: 井场电缆遥测中故障点诊断的方法和系统。 所述方法涉及提供一种系统，其包括可操作地耦合在表面调制解调器和井下调制解调器之间的电缆，其通过工具总线可操作地联接到一个或多个井下工具的井下工具串。 所述方法还包括产生多个测试信号，顺序地将测试信号跨越电缆遥测系统中的一个或多个测试环路，并且当至少一个测试信号在至少一个测试中失败时产生故障点警报 循环。 故障点警报标识电缆遥测系统的哪个组件导致测试信号失败。

公开(公告)号：US09535185B2

公开(公告)日：2017-01-03

申请号：US13705124

申请日：2012-12-04

Applicant: Schlumberger Technology Corporation

Inventor： Alex Olson ,  Nalin Weerasinghe ,  Milos Milosevic ,  Kun Wang ,  Motohiro Nakanouchi ,  Kenji Endo ,  Yuichi Kobayashi ,  Hiromasa Nishisaka

IPC: G01V3/00 ,  G01V3/18 ,  E21B47/12

CPC classification number: G01V3/18 ,  E21B47/12

Abstract: Methods and systems for failure point diagnostics in cable telemetry at a wellsite. The methods involve providing a system includes a cable operatively coupling between a surface modem and a downhole modem that is operatively coupled to a downhole toolstring of one or more downhole tools via a toolbus. The methods further involve generating a plurality of test signals, sequentially applying the test signals across one or more test loops in the cable telemetry system, and generating a failure point alert when at least one of the test signals fails in at least one of the test loops. The failure point alert identifies which component of the cable telemetry system caused the test signal to fail.

Abstract translation: 井场电缆遥测中故障点诊断的方法和系统。 所述方法涉及提供一种系统，其包括可操作地耦合在表面调制解调器和井下调制解调器之间的电缆，其通过工具总线可操作地联接到一个或多个井下工具的井下工具串。 所述方法还包括产生多个测试信号，顺序地将测试信号跨越电缆遥测系统中的一个或多个测试环路，并且当至少一个测试信号在至少一个测试中失败时产生故障点警报 循环。 故障点警报标识电缆遥测系统的哪个组件导致测试信号失败。

公开(公告)号：US20220120928A1

公开(公告)日：2022-04-21

申请号：US17310167

申请日：2020-01-22

Applicant: Schlumberger Technology Corporation

Inventor： Hiroshi Hori ,  Kenji Endo ,  Mika Uno

IPC: G01V1/50 ,  G01V1/46 ,  E21B49/00 ,  E21B47/0224 ,  E21B47/04 ,  E21B47/14 ,  E21B47/002 ,  E21B47/26

Abstract: A method can include, using a downhole tool, acquiring ultrasonic echo data of a borehole, where the ultrasonic echo data include echoes representative of material and borehole geometry responsive to reflection of ultrasonic energy that has a wide-band frequency range; filtering the ultrasonic echo data using at least one selected filter for multi-band frequency filtering corresponding to different frequency ranges of the wide-band frequency range to generate filtered data; and processing the filtered data to generate attribute values representative of physical characteristics the material, the borehole geometry, or the material and the borehole geometry.

公开(公告)号：US20140292530A1

公开(公告)日：2014-10-02

申请号：US13851971

申请日：2013-03-28

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Nalin Weerasinghe ,  Tadashi Tajima ,  Motohiro Nakanouchi ,  David Santoso ,  Kenji Endo

IPC: E21B47/12

CPC classification number: E21B47/122 ,  E21B47/12 ,  G02B6/3817

Abstract: Systems, apparatuses, and methods for hybrid cable telemetry. The methods can include positioning a toolstring in a wellbore. The toolstring can include an uphole telemetry cartridge and a downhole telemetry cartridge respectively adapted to send and receive telemetry data. The toolstring can also include a hybrid logging cable having optical fibers and copper conductors that can operatively couple the uphole telemetry cartridge to the downhole telemetry cartridge. The method can also include transferring data between the uphole telemetry cartridge and the downhole telemetry cartridge across the optical fibers and the copper conductors. The method can further include measuring a data transmission rate on the optical fibers and the copper conductors. The method can also include comparing the data transmission rate to a predetermined threshold. The method can further include detecting a data transmission failure when the data transmission rate falls below the predetermined threshold.

Abstract translation: 混合电缆遥测的系统，装置和方法。 这些方法可以包括将工具串定位在井眼中。 工具串可以包括分别适于发送和接收遥测数据的井上遥测盒和井下遥测盒。 工具串还可以包括具有光纤和铜导体的混合测井电缆，其可操作地将井上遥测盒连接到井下遥测盒。 该方法还可以包括通过光纤和铜导体在井上遥测盒和井下遥测盒之间传送数据。 该方法还可以包括测量光纤和铜导体上的数据传输速率。 该方法还可以包括将数据传输速率与预定阈值进行比较。 该方法还可以包括当数据传输速率低于预定阈值时检测数据传输故障。