WO2000029717A3 - Communications system having redundant channels - Google Patents

Communications system having redundant channels Download PDF

Info

Publication number
WO2000029717A3
WO2000029717A3 PCT/US1999/026954 US9926954W WO0029717A3 WO 2000029717 A3 WO2000029717 A3 WO 2000029717A3 US 9926954 W US9926954 W US 9926954W WO 0029717 A3 WO0029717 A3 WO 0029717A3
Authority
WO
WIPO (PCT)
Prior art keywords
communications system
redundant channels
channels
nodes
surface node
Prior art date
Application number
PCT/US1999/026954
Other languages
French (fr)
Other versions
WO2000029717A2 (en
Inventor
Guy V Laborde
Original Assignee
Schlumberger Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schlumberger Technology Corp filed Critical Schlumberger Technology Corp
Priority to AU18193/00A priority Critical patent/AU757972B2/en
Priority to BR9915445-5A priority patent/BR9915445A/en
Priority to GB0110475A priority patent/GB2361494B/en
Publication of WO2000029717A2 publication Critical patent/WO2000029717A2/en
Publication of WO2000029717A3 publication Critical patent/WO2000029717A3/en
Priority to NO20012414A priority patent/NO322489B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/423—Loop networks with centralised control, e.g. polling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/22—Transmitting seismic signals to recording or processing apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration

Abstract

A system for use in a well having completion zones includes a surface node (200) and a plurality of downhole nodes (202, 204) positioned in the completion zones. A communications link (21) extends into the well and is coupled to the surface node and downhole nodes. The communications link includes channels (212, 214, 216) coupling successive nodes, and the surface node and downhole nodes are coupled in a loop by the channels.
PCT/US1999/026954 1998-11-17 1999-11-16 Communications system having redundant channels WO2000029717A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU18193/00A AU757972B2 (en) 1998-11-17 1999-11-16 Communications system having redundant channels
BR9915445-5A BR9915445A (en) 1998-11-17 1999-11-16 Communication system for use in a well, method of its adjustment, method of providing fault tolerance, and article including a machine reading storage mechanism
GB0110475A GB2361494B (en) 1998-11-17 1999-11-16 Communications system having redundant channels
NO20012414A NO322489B1 (en) 1998-11-17 2001-05-16 Source telemetry system and method using redundant channels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/193,444 1998-11-17
US09/193,444 US6816082B1 (en) 1998-11-17 1998-11-17 Communications system having redundant channels

Publications (2)

Publication Number Publication Date
WO2000029717A2 WO2000029717A2 (en) 2000-05-25
WO2000029717A3 true WO2000029717A3 (en) 2000-09-08

Family

ID=22713664

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/026954 WO2000029717A2 (en) 1998-11-17 1999-11-16 Communications system having redundant channels

Country Status (6)

Country Link
US (1) US6816082B1 (en)
AU (1) AU757972B2 (en)
BR (1) BR9915445A (en)
GB (1) GB2361494B (en)
NO (1) NO322489B1 (en)
WO (1) WO2000029717A2 (en)

Families Citing this family (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10047923C2 (en) * 2000-09-27 2003-04-10 Siemens Ag Method for generating a connection redundancy for a serial communication system with a master unit and a plurality of slave units, which are connected to one another as a series of point-to-point connections in line topology, and a corresponding serial communication system
BRPI0116924B1 (en) * 2001-03-07 2015-10-13 Halliburton Energy Services Inc method of communicating data in a wellbore
US6819260B2 (en) 2001-03-07 2004-11-16 Halliburton Energy Services, Inc. Synchronous CDMA telemetry system for use in a wellbore
CA2442054C (en) * 2001-03-27 2009-06-23 Halliburton Energy Services, Inc. Very high data rate telemetry system for use in a wellbore
US7042367B2 (en) 2002-02-04 2006-05-09 Halliburton Energy Services Very high data rate telemetry system for use in a wellbore
GB2396086C (en) 2002-12-03 2007-11-02 Vetco Gray Controls Ltd A system for use in controlling a hydrocarbon production well
US7207396B2 (en) * 2002-12-10 2007-04-24 Intelliserv, Inc. Method and apparatus of assessing down-hole drilling conditions
EP1623250B1 (en) * 2003-04-18 2016-08-03 Advanced Geosciences, Inc. Techniques for surface exploration and monitoring
US7092437B2 (en) * 2003-04-25 2006-08-15 Duke University Methods and systems for determining an optimal training interval in a communications system
GB2401295B (en) * 2003-04-28 2005-07-13 Schlumberger Holdings Redundant systems for downhole permanent installations
US7096961B2 (en) * 2003-04-29 2006-08-29 Schlumberger Technology Corporation Method and apparatus for performing diagnostics in a wellbore operation
US7261162B2 (en) * 2003-06-25 2007-08-28 Schlumberger Technology Corporation Subsea communications system
US7139218B2 (en) * 2003-08-13 2006-11-21 Intelliserv, Inc. Distributed downhole drilling network
US7040415B2 (en) * 2003-10-22 2006-05-09 Schlumberger Technology Corporation Downhole telemetry system and method
US6995683B2 (en) 2004-03-12 2006-02-07 Welldynamics, Inc. System and method for transmitting downhole data to the surface
US7180825B2 (en) * 2004-06-29 2007-02-20 Halliburton Energy Services, Inc. Downhole telemetry system for wired tubing
US20060013065A1 (en) * 2004-07-16 2006-01-19 Sensorwise, Inc. Seismic Data Acquisition System and Method for Downhole Use
US7274304B2 (en) * 2004-07-27 2007-09-25 Intelliserv, Inc. System for loading executable code into volatile memory in a downhole tool
US20060056285A1 (en) * 2004-09-16 2006-03-16 Krajewski John J Iii Configuring redundancy in a supervisory process control system
CN101263276B (en) * 2005-08-04 2011-12-21 英特里瑟夫国际控股有限公司 interface and method for wellbore telemetry system
JP2009503306A (en) * 2005-08-04 2009-01-29 シュルンベルジェ ホールディングス リミテッド Interface for well telemetry system and interface method
US20090173493A1 (en) * 2006-08-03 2009-07-09 Remi Hutin Interface and method for transmitting information to and from a downhole tool
US20080217022A1 (en) * 2007-03-06 2008-09-11 Schlumberger Technology Corporation Subsea communications multiplexer
US8115651B2 (en) * 2007-04-13 2012-02-14 Xact Downhole Telemetry Inc. Drill string telemetry methods and apparatus
US8196656B2 (en) 2007-09-19 2012-06-12 Welldynamics, Inc. Position sensor for well tools
US20090120689A1 (en) * 2007-11-12 2009-05-14 Baker Hughes Incorporated Apparatus and method for communicating information between a wellbore and surface
WO2009101125A1 (en) * 2008-02-15 2009-08-20 Shell Internationale Research Maatschappij B.V. Method of producing hydrocarbons through a smart well
EP2260176B1 (en) * 2008-03-03 2018-07-18 Intelliserv International Holding, Ltd Monitoring downhole conditions with drill string distributed measurement system
GB0814095D0 (en) * 2008-08-01 2008-09-10 Saber Ofs Ltd Downhole communication
EP2344910B1 (en) * 2008-08-25 2014-05-14 Saudi Arabian Oil Company Intelligent data acquisition in an oil and gas field
WO2010024818A1 (en) * 2008-08-29 2010-03-04 Welldynamics, Inc. Bypass of damaged lines in subterranean wells
US20100051269A1 (en) * 2008-08-29 2010-03-04 Welldynamics, Inc. Bypass of damaged lines in subterranean wells
WO2010030266A1 (en) 2008-09-09 2010-03-18 Welldynamics, Inc. Remote actuation of downhole well tools
US9664815B2 (en) 2008-09-25 2017-05-30 Baker Hughes Incorporated Telemetry method and system for subsurface well and reservoir and logging data
DE102009046062B3 (en) * 2009-10-27 2011-04-14 Airbus Operations Gmbh Device and method for transmitting data via network nodes of a network
WO2011082122A1 (en) * 2009-12-28 2011-07-07 Schlumberger Technology Corp. Downhole data transmission system
GB2477331A (en) * 2010-02-01 2011-08-03 Vetco Gray Controls Ltd Electronics module for underwater well installation having electronic components, relating to diverse systems.
US9074463B2 (en) * 2010-12-30 2015-07-07 Baker Hughes Incorporated Method and devices for terminating communication between a node and a carrier
US9686021B2 (en) * 2011-03-30 2017-06-20 Schlumberger Technology Corporation Wireless network discovery and path optimization algorithm and system
MX357306B (en) * 2011-10-25 2018-07-04 Martin Scient Llc High-speed downhole sensor and telemetry network.
CN103226207B (en) * 2012-01-25 2017-11-10 英洛瓦(天津)物探装备有限责任公司 Simulation in power module
CN103226206B (en) 2012-01-25 2018-11-27 英洛瓦(天津)物探装备有限责任公司 Multi-pair power distribution
KR101290913B1 (en) * 2012-04-30 2013-07-29 한국지질자원연구원 Submarine data relay system and method
EP2720069B1 (en) * 2012-10-12 2022-06-15 Sercel A seismic cable for seismic prospection tolerant to failure on power supplying and/or data transmission lines
US9816373B2 (en) * 2012-12-19 2017-11-14 Exxonmobil Upstream Research Company Apparatus and method for relieving annular pressure in a wellbore using a wireless sensor network
US9631485B2 (en) 2012-12-19 2017-04-25 Exxonmobil Upstream Research Company Electro-acoustic transmission of data along a wellbore
WO2014100275A1 (en) * 2012-12-19 2014-06-26 Exxonmobil Upstream Research Company Wired and wireless downhole telemetry using a logging tool
US10480308B2 (en) 2012-12-19 2019-11-19 Exxonmobil Upstream Research Company Apparatus and method for monitoring fluid flow in a wellbore using acoustic signals
US9557434B2 (en) 2012-12-19 2017-01-31 Exxonmobil Upstream Research Company Apparatus and method for detecting fracture geometry using acoustic telemetry
WO2014100264A1 (en) 2012-12-19 2014-06-26 Exxonmobil Upstream Research Company Telemetry system for wireless electro-acoustical transmission of data along a wellbore
US8851161B2 (en) 2013-01-22 2014-10-07 Halliburton Energy Services, Inc. Cross-communication between electronic circuits and electrical devices in well tools
US10385656B2 (en) 2013-06-21 2019-08-20 Landmark Graphics Corporation Methods and systems for determining manufacturing and operating parameters for a deviated downhole well component
US9644433B2 (en) * 2013-08-28 2017-05-09 Baker Hughes Incorporated Electronic frame having conductive and bypass paths for electrical inputs for use with coupled conduit segments
US9459944B2 (en) * 2013-10-30 2016-10-04 Pgs Geophysical As Method and system for streamer redundancy
WO2015080754A1 (en) 2013-11-26 2015-06-04 Exxonmobil Upstream Research Company Remotely actuated screenout relief valves and systems and methods including the same
GB2520732B (en) * 2013-11-29 2017-11-22 Ge Oil & Gas Uk Ltd Active bypass system for ring networks
CA2952885C (en) 2014-06-23 2022-11-22 Evolution Engineering Inc. Optimizing downhole data communication with at bit sensors and nodes
WO2016039900A1 (en) 2014-09-12 2016-03-17 Exxonmobil Upstream Research Comapny Discrete wellbore devices, hydrocarbon wells including a downhole communication network and the discrete wellbore devices and systems and methods including the same
US9863222B2 (en) 2015-01-19 2018-01-09 Exxonmobil Upstream Research Company System and method for monitoring fluid flow in a wellbore using acoustic telemetry
US10408047B2 (en) 2015-01-26 2019-09-10 Exxonmobil Upstream Research Company Real-time well surveillance using a wireless network and an in-wellbore tool
BR112017016787A2 (en) * 2015-03-20 2018-04-17 Halliburton Energy Services Inc repeater system provided in an exploration well, and method for transmitting data along an exploration well.
EP3101224B1 (en) * 2015-06-05 2023-07-12 Services Pétroliers Schlumberger Backbone network architecture and network management scheme for downhole wireless communications system
WO2017010980A1 (en) * 2015-07-13 2017-01-19 Halliburton Energy Services, Inc. Selectively skipping transceivers to enhance communication quality and speed
US10557953B2 (en) 2016-06-30 2020-02-11 Pgs Geophysical As Molded snap-in plug and device and method for using same
US11828172B2 (en) 2016-08-30 2023-11-28 ExxonMobil Technology and Engineering Company Communication networks, relay nodes for communication networks, and methods of transmitting data among a plurality of relay nodes
US10344583B2 (en) 2016-08-30 2019-07-09 Exxonmobil Upstream Research Company Acoustic housing for tubulars
US10364669B2 (en) 2016-08-30 2019-07-30 Exxonmobil Upstream Research Company Methods of acoustically communicating and wells that utilize the methods
US10465505B2 (en) 2016-08-30 2019-11-05 Exxonmobil Upstream Research Company Reservoir formation characterization using a downhole wireless network
US10590759B2 (en) 2016-08-30 2020-03-17 Exxonmobil Upstream Research Company Zonal isolation devices including sensing and wireless telemetry and methods of utilizing the same
US10697287B2 (en) 2016-08-30 2020-06-30 Exxonmobil Upstream Research Company Plunger lift monitoring via a downhole wireless network field
US10415376B2 (en) 2016-08-30 2019-09-17 Exxonmobil Upstream Research Company Dual transducer communications node for downhole acoustic wireless networks and method employing same
US10526888B2 (en) 2016-08-30 2020-01-07 Exxonmobil Upstream Research Company Downhole multiphase flow sensing methods
WO2018070998A1 (en) * 2016-10-11 2018-04-19 Halliburton Energy Services, Inc. Calibrating a digital telemetry system
WO2018075037A1 (en) 2016-10-19 2018-04-26 Halliburton Energy Services, Inc. Multi-gauge communications over an esp power bus
US11079506B2 (en) 2016-12-16 2021-08-03 Pgs Geophysical As Multicomponent streamer
US11105941B2 (en) 2017-08-14 2021-08-31 Pgs Geophysical As Managing movement of data packets along a geophysical sensor cable
WO2019074654A2 (en) 2017-10-13 2019-04-18 Exxonmobil Upstream Research Company Method and system for performing hydrocarbon operations with mixed communication networks
WO2019074657A1 (en) 2017-10-13 2019-04-18 Exxonmobil Upstream Research Company Method and system for performing operations using communications
US10697288B2 (en) 2017-10-13 2020-06-30 Exxonmobil Upstream Research Company Dual transducer communications node including piezo pre-tensioning for acoustic wireless networks and method employing same
AU2018347465B2 (en) 2017-10-13 2021-10-07 Exxonmobil Upstream Research Company Method and system for performing communications using aliasing
US11035226B2 (en) 2017-10-13 2021-06-15 Exxomobil Upstream Research Company Method and system for performing operations with communications
US10837276B2 (en) 2017-10-13 2020-11-17 Exxonmobil Upstream Research Company Method and system for performing wireless ultrasonic communications along a drilling string
MX2020007277A (en) 2017-11-17 2020-08-17 Exxonmobil Upstream Res Co Method and system for performing wireless ultrasonic communications along tubular members.
US10690794B2 (en) 2017-11-17 2020-06-23 Exxonmobil Upstream Research Company Method and system for performing operations using communications for a hydrocarbon system
FR3074304B1 (en) * 2017-11-28 2019-10-18 Thales SYSTEM FOR COLLECTING AND DISPENSING SENSOR DATA IN A LINEAR ACOUSTIC LINEAR ANTENNA
US10844708B2 (en) 2017-12-20 2020-11-24 Exxonmobil Upstream Research Company Energy efficient method of retrieving wireless networked sensor data
US11156081B2 (en) 2017-12-29 2021-10-26 Exxonmobil Upstream Research Company Methods and systems for operating and maintaining a downhole wireless network
WO2019133290A1 (en) 2017-12-29 2019-07-04 Exxonmobil Upstream Research Company Methods and systems for monitoring and optimizing reservoir stimulation operations
WO2019156966A1 (en) 2018-02-08 2019-08-15 Exxonmobil Upstream Research Company Methods of network peer identification and self-organization using unique tonal signatures and wells that use the methods
US11268378B2 (en) 2018-02-09 2022-03-08 Exxonmobil Upstream Research Company Downhole wireless communication node and sensor/tools interface
US11784918B2 (en) * 2018-09-13 2023-10-10 Baker Hughes Holdings Llc Systems and methods for backup communications
US11952886B2 (en) 2018-12-19 2024-04-09 ExxonMobil Technology and Engineering Company Method and system for monitoring sand production through acoustic wireless sensor network
US11293280B2 (en) 2018-12-19 2022-04-05 Exxonmobil Upstream Research Company Method and system for monitoring post-stimulation operations through acoustic wireless sensor network
US11824682B1 (en) 2023-01-27 2023-11-21 Schlumberger Technology Corporation Can-open master redundancy in PLC-based control system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2028062A (en) * 1979-08-17 1980-02-27 Standard Telephones Cables Ltd Data transmission system
EP0682431A1 (en) * 1994-05-09 1995-11-15 Europlex Research Limited A ring network system
US5515038A (en) * 1993-11-15 1996-05-07 Camco International Inc. Data transmission system
WO1998007049A2 (en) * 1996-08-12 1998-02-19 Petroleum Geo-Services (Us), Inc. Reservoir acquisition system with concentrator

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2082062B (en) 1980-08-19 1984-07-11 Colgate Palmolive Co Dentifrices containing xanthan and guar gum
US4633246A (en) * 1984-01-09 1986-12-30 Fiberlan, Inc. Time divison multiplex ring
CA1291549C (en) * 1987-11-06 1991-10-29 Wayne D. Grover Method and apparatus for self-healing and self-provisioning networks
US5159595A (en) * 1988-04-08 1992-10-27 Northern Telecom Limited Ring transmission system
US4868561A (en) 1988-07-01 1989-09-19 Motorola, Inc. Method of reprogramming an alert pattern
US4992790A (en) 1989-09-19 1991-02-12 Schlumberger Technology Corporation Digital phase-locked loop biphase demodulating method and apparatus
US5253271A (en) 1991-02-15 1993-10-12 Schlumberger Technology Corporation Method and apparatus for quadrature amplitude modulation of digital data using a finite state machine
US5191326A (en) 1991-09-05 1993-03-02 Schlumberger Technology Corporation Communications protocol for digital telemetry system
JP2965055B2 (en) 1992-02-13 1999-10-18 日本電気株式会社 Cross connect network
US5341364A (en) * 1992-06-02 1994-08-23 At&T Bell Laboratories Distributed switching in bidirectional multiplex section-switched ringtransmission systems
US5333130A (en) * 1993-05-18 1994-07-26 Alcatel Canada Wire, Inc. Self-healing drop and insert communication network
US5412652A (en) * 1993-09-24 1995-05-02 Nec America, Inc. Sonet ring subnetwork management method
US5613935A (en) 1994-12-16 1997-03-25 Jarvik; Robert High reliability cardiac assist system
US5959547A (en) * 1995-02-09 1999-09-28 Baker Hughes Incorporated Well control systems employing downhole network
EP0872084A1 (en) * 1995-09-22 1998-10-21 Mci Communications Corporation Communication system and method providing optimal restoration of failed paths
US5781530A (en) 1996-04-01 1998-07-14 Motorola, Inc. Redundant local area network
US5859959A (en) * 1996-04-29 1999-01-12 Hewlett-Packard Company Computer network with devices/paths having redundant links
US5793746A (en) * 1996-04-29 1998-08-11 International Business Machines Corporation Fault-tolerant multichannel multiplexer ring configuration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2028062A (en) * 1979-08-17 1980-02-27 Standard Telephones Cables Ltd Data transmission system
US5515038A (en) * 1993-11-15 1996-05-07 Camco International Inc. Data transmission system
EP0682431A1 (en) * 1994-05-09 1995-11-15 Europlex Research Limited A ring network system
WO1998007049A2 (en) * 1996-08-12 1998-02-19 Petroleum Geo-Services (Us), Inc. Reservoir acquisition system with concentrator

Also Published As

Publication number Publication date
GB0110475D0 (en) 2001-06-20
US6816082B1 (en) 2004-11-09
BR9915445A (en) 2001-10-23
NO20012414L (en) 2001-07-05
NO20012414D0 (en) 2001-05-16
GB2361494A (en) 2001-10-24
AU757972B2 (en) 2003-03-13
NO322489B1 (en) 2006-10-09
GB2361494B (en) 2003-01-22
AU1819300A (en) 2000-06-05
WO2000029717A2 (en) 2000-05-25

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