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公开(公告)号：US20140354446A1
公开(公告)日：2014-12-04
申请号：US14367937
申请日：2012-12-19
申请人： Schlumberger Technology Corporation , Services Petroliers Schlumberger , Schlumberger Holdings Limited
发明人： Takeaki Nakayama , Yuichi Kobayashi , Kun Wang , Nalin Weerasinghe , Milos Milosevic , David Santoso , Yasumasa Fujisawa , Thi Huong Lien Nguyen , Tsubasa Tanaka
IPC分类号： E21B47/12
摘要： Cable telemetry synchronization systems and methods. The synchronization can involve positioning downhole equipment into a wellbore via a cable operatively coupled to a surface module that can include a telemetry system master clock. The downhole equipment can include a toolbus master node and at least one slave node module having a node clock operatively coupled to the toolbus master node. The synchronization can also involve sending a frame start command to the at least one slave node module from the toolbus master node at predetermined intervals, receiving a clock value from each of the at least one slave node module, calculating a clock offset for each of the at least one slave node module, and sending an absolute clock value and the calculated clock offset for each of the at least one slave node module via a downlink synchronization command to the at least one slave node module.
摘要翻译： 电缆遥测同步系统和方法。 同步可以包括通过可操作地耦合到可包括遥测系统主时钟的表面模块的电缆将井下设备定位到井筒中。 井下设备可以包括工具总线主节点和具有可操作地耦合到工具总线主节点的节点时钟的至少一个从节点模块。 同步还可以包括以预定间隔从工具总线主节点向至少一个从节点模块发送帧起始命令，从至少一个从节点模块中的每一个接收时钟值，计算每个从节点模块的时钟偏移量 至少一个从节点模块，并且经由下行链路同步命令向所述至少一个从节点模块发送绝对时钟值和所计算的所述至少一个从节点模块中的每一个的时钟偏移。
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2.发明申请Wellsite System and Method for Multiple Carrier Frequency, Half Duplex Cable Telemetry 审中-公开多载波频率的井场系统和方法，半双工电缆遥测公开(公告)号：US20140152459A1
公开(公告)日：2014-06-05
申请号：US13705130
申请日：2012-12-04
发明人： Alex Olson , Nalin Weerasinghe , Kun Wang , Milos Milosevic
IPC分类号： G01V3/18
CPC分类号： H04B3/32 , G01V11/002 , H04B3/23
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US10601464B2
公开(公告)日：2020-03-24
申请号：US16371849
申请日：2019-04-01
发明人： Alex Olson , Nalin Weerasinghe , Kun Wang , Milos Milosevic
摘要： 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.
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公开(公告)号：US09911323B2
公开(公告)日：2018-03-06
申请号：US13705139
申请日：2012-12-04
发明人： David Santoso , Takeaki Nakayama , Hiromasa Nishisaka , Yuichi Kobayashi , Nalin Weerasinghe , Milos Milosevic , Eric Jeanson , Kun Wang , Motohiro Nakanouchi
摘要： Toolstring topology mapping systems having a downhole toolstring including a master node controller and a plurality of nodes and related methods. The methods involve querying each of the plurality of nodes in the downhole toolstring for actual topology information, receiving actual topology information from each of the plurality of nodes in the downhole toolstring in response to querying, and generating a topology map of the downhole toolstring based on the actual topology information from each of the plurality of nodes in the downhole toolstring. The methods can also involve comparing the topology map with the input topology information to identify topology mismatch and then take remedial actions if needed.
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公开(公告)号：US09154186B2
公开(公告)日：2015-10-06
申请号：US13705137
申请日：2012-12-04
发明人： Hiromasa Nishisaka , Takeaki Nakayama , Milos Milosevic , Eric Jeanson , Nalin Weerasinghe , Kun Wang , Yuichi Kobayashi , Motohiro Nakanouchi , David Santoso , Alex Olson
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20140152460A1
公开(公告)日：2014-06-05
申请号：US13705139
申请日：2012-12-04
发明人： David Santoso , Takeaki Nakayama , Hiromasa Nishisaka , Yuichi Kobayashi , Nalin Weerasinghe , Milos Milosevic , Eric Jeanson , Kun Wang , Motohiro Nakanouchi
IPC分类号： G08C19/00
摘要： Toolstring topology mapping systems having a downhole toolstring including a master node controller and a plurality of nodes and related methods. The methods involve querying each of the plurality of nodes in the downhole toolstring for actual topology information, receiving actual topology information from each of the plurality of nodes in the downhole toolstring in response to querying, and generating a topology map of the downhole toolstring based on the actual topology information from each of the plurality of nodes in the downhole toolstring. The methods can also involve comparing the topology map with the input topology information to identify topology mismatch and then take remedial actions if needed.
摘要翻译： 具有井下工具串的工具串拓扑映射系统包括主节点控制器和多个节点及相关方法。 所述方法包括：查询井下工具串中的多个节点中的每一个，以获得实际的拓扑信息;响应于查询从井下工具串中的多个节点中的每一个节点接收实际的拓扑信息;以及生成井下工具串的拓扑图，基于 来自井下工具串中的多个节点中的每一个的实际拓扑信息。 这些方法还可以包括将拓扑图与输入拓扑信息进行比较，以识别拓扑不匹配，然后在需要时采取补救措施。
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公开(公告)号：US20140152456A1
公开(公告)日：2014-06-05
申请号：US13705124
申请日：2012-12-04
发明人： Alex Olson , Nalin Weerasinghe , Milos Milosevic , Kun Wang , Motohiro Nakanouchi , Kenji Endo , Yuichi Kobayashi , Hiromasa Nishisaka
IPC分类号： G01V3/18
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20140152457A1
公开(公告)日：2014-06-05
申请号：US13705137
申请日：2012-12-04
发明人： Hiromasa Nishisaka , Takeaki Nakayama , Milos Milosevic , Eric Jeanson , Nalin Weerasinghe , Kun Wang , Yuichi Kobayashi , Motohiro Nakanouchi , David Santoso , Alex Olson
摘要： 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.
摘要翻译： 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。
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9.发明申请公开(公告)号：US20190229767A1
公开(公告)日：2019-07-25
申请号：US16371849
申请日：2019-04-01
发明人： Alex Olson , Nalin Weerasinghe , Kun Wang , Milos Milosevic
CPC分类号： H04B3/32 , G01V11/002 , H04B3/23
摘要： 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.
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公开(公告)号：US09535185B2
公开(公告)日：2017-01-03
申请号：US13705124
申请日：2012-12-04
发明人： Alex Olson , Nalin Weerasinghe , Milos Milosevic , Kun Wang , Motohiro Nakanouchi , Kenji Endo , Yuichi Kobayashi , Hiromasa Nishisaka
摘要： 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.
摘要翻译： 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。
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