公开(公告)号：US20140152459A1

公开(公告)日：2014-06-05

申请号：US13705130

申请日：2012-12-04

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Alex Olson ,  Nalin Weerasinghe ,  Kun Wang ,  Milos Milosevic

IPC: G01V3/18

CPC classification number: H04B3/32 ,  G01V11/002 ,  H04B3/23

Abstract: Methods and systems for multiple carrier frequency, half duplex cable telemetry for a wellsite. The methods involve generating a first type of bi-directional message in a first propagation mode, generating a second type of bi-directional message in the first propagation mode and in a second propagation mode, transmitting over a cable operatively coupling a surface modem and a downhole modem the first and second types of bi-directional message sequentially in a plurality of time periods across a single frequency bandwidth, and separating each of the first and second types of bi-directional message from a most subsequently transmitted one of the first and second types of bi-directional message by a quiet time sample during which no message is transmitted.

Abstract translation: 多载波频率，半双工电缆遥测方法和系统。 所述方法涉及以第一传播模式生成第一类型的双向消息，在第一传播模式和第二传播模式中产生第二类型的双向消息，通过电缆传输，可操作地耦合表面调制解调器和 在单个频率带宽的多个时间段内顺序地对第一和第二类型的双向消息进行井下调制，并且将第一和第二类型的双向消息中的每一个与第一和第二类型的双向消息中的最后发送的一个 通过安静时间采样的双向消息类型，在此期间不发送消息。

公开(公告)号：US10601464B2

公开(公告)日：2020-03-24

申请号：US16371849

申请日：2019-04-01

Applicant: Schlumberger Technology Corporation

Inventor： Alex Olson ,  Nalin Weerasinghe ,  Kun Wang ,  Milos Milosevic

IPC: H04B3/32 ,  H04B3/23 ,  G01V11/00

Abstract: Methods and systems for multiple carrier frequency, half duplex cable telemetry for a wellsite. The methods involve generating a first type of bi-directional message in a first propagation mode, generating a second type of bi-directional message in the first propagation mode and in a second propagation mode, transmitting over a cable operatively coupling a surface modem and a downhole modem the first and second types of bi-directional message sequentially in a plurality of time periods across a single frequency bandwidth, and separating each of the first and second types of bi-directional message from a most subsequently transmitted one of the first and second types of bi-directional message by a quiet time sample during which no message is transmitted.

公开(公告)号：US09154186B2

公开(公告)日：2015-10-06

申请号：US13705137

申请日：2012-12-04

Applicant: Schlumberger Technology Corporation

Inventor： Hiromasa Nishisaka ,  Takeaki Nakayama ,  Milos Milosevic ,  Eric Jeanson ,  Nalin Weerasinghe ,  Kun Wang ,  Yuichi Kobayashi ,  Motohiro Nakanouchi ,  David Santoso ,  Alex Olson

IPC: G01V3/00 ,  H04B3/02 ,  H04B3/46 ,  E21B47/12

CPC classification number: H04B3/02 ,  E21B47/12 ,  H04B3/46

Abstract: Systems and methods for toolstring communication in cable telemetry. The methods involve positioning a cable telemetry system in a wellbore. The cable telemetry system can include a surface modem, a downhole toolstring of downhole tools, a downhole modem operatively coupled to the downhole toolstring, a cable operatively coupling between the surface modem and the downhole modem, and a surface data routing module that polls and trains the cable telemetry system. The methods also involve performing a pre-transmission poll of a rate requirement for the downhole toolstring and a telemetry type for the downhole modem, applying a training phase to establish a transmission link between the surface modem and the downhole modem, configuring data obtained by the downhole toolstring for an uplink via the transmission link, and transmitting the uplink via the transmission link.

Abstract translation: 电缆遥测中的工具串通信系统和方法。 该方法涉及将电缆遥测系统定位在井眼中。 电缆遥测系统可以包括表面调制解调器，井下工具的井下工具串，可操作地连接到井下工具串的井下调制解调器，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，以及轮询和列车的表面数据路由模块 电缆遥测系统。 所述方法还涉及对井下调制解调器的井下类型和井下调制解调器的遥测类型进行预传输轮询，应用训练阶段建立地面调制解调器和井下调制解调器之间的传输链路，配置由 经由传输链路的用于上行链路的井下工具串，以及经由传输链路发送上行链路。

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：US20190229767A1

公开(公告)日：2019-07-25

申请号：US16371849

申请日：2019-04-01

Applicant: Schlumberger Technology Corporation

Inventor： Alex Olson ,  Nalin Weerasinghe ,  Kun Wang ,  Milos Milosevic

IPC: H04B3/32 ,  H04B3/23

CPC classification number: H04B3/32 ,  G01V11/002 ,  H04B3/23

Abstract: Methods and systems for multiple carrier frequency, half duplex cable telemetry for a wellsite. The methods involve generating a first type of bi-directional message in a first propagation mode, generating a second type of bi-directional message in the first propagation mode and in a second propagation mode, transmitting over a cable operatively coupling a surface modem and a downhole modem the first and second types of bi-directional message sequentially in a plurality of time periods across a single frequency bandwidth, and separating each of the first and second types of bi-directional message from a most subsequently transmitted one of the first and second types of bi-directional message by a quiet time sample during which no message is transmitted.

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：US20140152457A1

公开(公告)日：2014-06-05

申请号：US13705137

申请日：2012-12-04

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Hiromasa Nishisaka ,  Takeaki Nakayama ,  Milos Milosevic ,  Eric Jeanson ,  Nalin Weerasinghe ,  Kun Wang ,  Yuichi Kobayashi ,  Motohiro Nakanouchi ,  David Santoso ,  Alex Olson

IPC: H04B3/02 ,  H04B3/46

CPC classification number: H04B3/02 ,  E21B47/12 ,  H04B3/46

Abstract: Systems and methods for toolstring communication in cable telemetry. The methods involve positioning a cable telemetry system in a wellbore. The cable telemetry system can include a surface modem, a downhole toolstring of downhole tools, a downhole modem operatively coupled to the downhole toolstring, a cable operatively coupling between the surface modem and the downhole modem, and a surface data routing module that polls and trains the cable telemetry system. The methods also involve performing a pre-transmission poll of a rate requirement for the downhole toolstring and a telemetry type for the downhole modem, applying a training phase to establish a transmission link between the surface modem and the downhole modem, configuring data obtained by the downhole toolstring for an uplink via the transmission link, and transmitting the uplink via the transmission link.

Abstract translation: 电缆遥测中的工具串通信系统和方法。 该方法涉及将电缆遥测系统定位在井眼中。 电缆遥测系统可以包括表面调制解调器，井下工具的井下工具串，可操作地连接到井下工具串的井下调制解调器，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，以及轮询和列车的表面数据路由模块 电缆遥测系统。 所述方法还涉及对井下调制解调器的井下类型和井下调制解调器的遥测类型进行预传输轮询，应用训练阶段建立地面调制解调器和井下调制解调器之间的传输链路，配置由 经由传输链路的用于上行链路的井下工具串，以及经由传输链路发送上行链路。