Patents by Inventor Motohiro Nakanouchi
Motohiro Nakanouchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9911323Abstract: 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.Type: GrantFiled: December 4, 2012Date of Patent: March 6, 2018Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: David Santoso, Takeaki Nakayama, Hiromasa Nishisaka, Yuichi Kobayashi, Nalin Weerasinghe, Milos Milosevic, Eric Jeanson, Kun Wang, Motohiro Nakanouchi
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Publication number: 20170160411Abstract: An apparatus that is usable with a well includes a cable, a sensor module that contains seismic sensors, and a bulkhead connection. The bulkhead connection connects the cable to the sensor module at a radial offset with respect to the longitudinal axis of the cable.Type: ApplicationFiled: December 2, 2016Publication date: June 8, 2017Inventors: Daniel Golparian, Motohiro Nakanouchi, Toshio Suzuki
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Patent number: 9535185Abstract: 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.Type: GrantFiled: December 4, 2012Date of Patent: January 3, 2017Assignee: Schlumberger technology CorporationInventors: Alex Olson, Nalin Weerasinghe, Milos Milosevic, Kun Wang, Motohiro Nakanouchi, Kenji Endo, Yuichi Kobayashi, Hiromasa Nishisaka
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Patent number: 9154186Abstract: 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.Type: GrantFiled: December 4, 2012Date of Patent: October 6, 2015Assignee: Schlumberger Technology CorporationInventors: Hiromasa Nishisaka, Takeaki Nakayama, Milos Milosevic, Eric Jeanson, Nalin Weerasinghe, Kun Wang, Yuichi Kobayashi, Motohiro Nakanouchi, David Santoso, Alex Olson
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Patent number: 9091154Abstract: 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.Type: GrantFiled: March 28, 2013Date of Patent: July 28, 2015Assignee: Schlumberger Technology CorporationInventors: Nalin Weerasinghe, Tadashi Tajima, Motohiro Nakanouchi, David Santoso, Kenji Endo
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Publication number: 20140292530Abstract: 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.Type: ApplicationFiled: March 28, 2013Publication date: October 2, 2014Applicant: Schlumberger Technology CorporationInventors: Nalin Weerasinghe, Tadashi Tajima, Motohiro Nakanouchi, David Santoso, Kenji Endo
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Publication number: 20140218206Abstract: A multi-scheme downhole tool bus system is provided. The system may comprise a tool bus master and a number tool bus slaves coupled together via a communications link The communications link may include an uplink communication and a downlink communication. The uplink communication and the downlink communication may include a number of communication schemes or data rates.Type: ApplicationFiled: September 11, 2012Publication date: August 7, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Theodorus Tjhang, Yuichi Kobayashi, Takeaki Nakayama, Motohiro Nakanouchi, David Santoso
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Publication number: 20140152456Abstract: 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.Type: ApplicationFiled: December 4, 2012Publication date: June 5, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Alex Olson, Nalin Weerasinghe, Milos Milosevic, Kun Wang, Motohiro Nakanouchi, Kenji Endo, Yuichi Kobayashi, Hiromasa Nishisaka
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Publication number: 20140152457Abstract: 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.Type: ApplicationFiled: December 4, 2012Publication date: June 5, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Hiromasa Nishisaka, Takeaki Nakayama, Milos Milosevic, Eric Jeanson, Nalin Weerasinghe, Kun Wang, Yuichi Kobayashi, Motohiro Nakanouchi, David Santoso, Alex Olson
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Publication number: 20140152460Abstract: 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.Type: ApplicationFiled: December 4, 2012Publication date: June 5, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: David Santoso, Takeaki Nakayama, Hiromasa Nishisaka, Yuichi Kobayashi, Nalin Weerasinghe, Milos Milosevic, Eric Jeanson, Kun Wang, Motohiro Nakanouchi
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Patent number: 8362916Abstract: Methods and systems for borehole telemetry utilizing a tool configured or designed for deployment in a borehole traversing a subterranean formation. The tool includes a downhole telemetry module; a surface telemetry module; and a datalink between the downhole and surface modules configured or designed for transferring data over one or more data communication channels utilizing at least one telemetry scheme selected from a plurality of telemetry schemes based on at least one downhole parameter.Type: GrantFiled: February 3, 2010Date of Patent: January 29, 2013Assignee: Schlumberger Technology CorporationInventors: Theodorus Tjhang, Yuichi Kobayashi, David Santoso, Nalin Weerasinghe, Motohiro Nakanouchi
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Publication number: 20100194586Abstract: Methods and systems for borehole telemetry utilizing a tool configured or designed for deployment in a borehole traversing a subterranean formation. The tool includes a downhole telemetry module; a surface telemetry module; and a datalink between the downhole and surface modules configured or designed for transferring data over one or more data communication channels utilizing at least one telemetry scheme selected from a plurality of telemetry schemes based on at least one downhole parameter.Type: ApplicationFiled: February 3, 2010Publication date: August 5, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: THEODORUS TJHANG, YUICHI KOBAHASHI, DAVID SANTOSO, NALIN WEERASINGHE, MOTOHIRO NAKANOUCHI