NO973448L - Method and apparatus for signal transmission via an electric power line, especially in oil wells - Google Patents

Method and apparatus for signal transmission via an electric power line, especially in oil wells

Info

Publication number
NO973448L
NO973448L NO973448A NO973448A NO973448L NO 973448 L NO973448 L NO 973448L NO 973448 A NO973448 A NO 973448A NO 973448 A NO973448 A NO 973448A NO 973448 L NO973448 L NO 973448L
Authority
NO
Norway
Prior art keywords
phase
capacitors
cable
signal transmission
transmission via
Prior art date
Application number
NO973448A
Other languages
Norwegian (no)
Other versions
NO973448D0 (en
Inventor
Andrew Jewell
Michael Andrew Yuratich
Original Assignee
Expro North Sea Ltd
Tsl Technology Ltd
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 Expro North Sea Ltd, Tsl Technology Ltd filed Critical Expro North Sea Ltd
Publication of NO973448L publication Critical patent/NO973448L/en
Publication of NO973448D0 publication Critical patent/NO973448D0/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
    • E21B17/206—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables with conductors, e.g. electrical, optical
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/56—Circuits for coupling, blocking, or by-passing of signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5416—Methods of transmitting or receiving signals via power distribution lines by adding signals to the wave form of the power source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5425—Methods of transmitting or receiving signals via power distribution lines improving S/N by matching impedance, noise reduction, gain control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5458—Monitor sensor; Alarm systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5466—Systems for power line communications using three phases conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5475—Systems for power line communications adapted for drill or well combined with data transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5483—Systems for power line communications using coupling circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5483—Systems for power line communications using coupling circuits
    • H04B2203/5487—Systems for power line communications using coupling circuits cables
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5495—Systems for power line communications having measurements and testing channel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Remote Sensing (AREA)
  • Geophysics (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

Et system som tillater transmisjon av informasjon (data) på samme elektriske kabel (18) som brukes for å overføre elektrisk kraft til en belastning (148), så som en elektrisk nedsenkbar brønnpumpe (10). I en utførelse skjer dette ved å bruke kabelisolasjonen (42) som dielektrikum for kondensatorer C, C' hvis elektroder (44) dannes av en utvendig elektrisk ledende skjerm, henholdsvis den strømførende faseleder (48, 50, 52) i kabelen. På denne måte unngår man direkte kontakt med eller høyspennings forbindelser til de strømførende faseledere, hvilket gjør systemet særlig fordelaktig i utrustning så som brønnpumper (10) hvor god pålitelighet er vesentlig. Systemet kan være enfaset eller trefaset. I en foretrukket anordning brukes to slike kondensatorer for å kople til to separate faseledere (48, 50, 52; 114, 116, 118) for å lukke en krets for å tillate toveis datatransmisjon. Ved signalformidling via to slike kondensatorer unngår man behovet for jordforbindelse, og dette bedrer ytterligere påliteligheten og tillater dessuten rutineisolasjonsprøving. Forskjellige utførelser av systemets apparat i form av en koplingsenhet (46) og fremgangsmåter kan finne anvendelse.A system that allows transmission of information (data) on the same electrical cable (18) used to transmit electrical power to a load (148), such as an electrically submersible well pump (10). In one embodiment, this is done by using the cable insulation (42) as a dielectric for capacitors C, C 'whose electrodes (44) are formed by an external electrically conductive shield, respectively the conductive phase conductor (48, 50, 52) of the cable. In this way direct contact with or high voltage connections to the live phase conductors is avoided, which makes the system particularly advantageous in equipment such as well pumps (10) where good reliability is essential. The system can be single-phase or three-phase. In a preferred device, two such capacitors are used to connect two separate phase conductors (48, 50, 52; 114, 116, 118) to close a circuit to allow bidirectional data transmission. Signal transmission via two such capacitors avoids the need for grounding, which further improves reliability and also allows routine insulation testing. Various embodiments of the system apparatus in the form of a coupling unit (46) and methods may be applicable.

NO973448A 1995-01-27 1997-07-25 Method and apparatus for signal transmission via an electric power line, especially in oil wells NO973448D0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9501615.0A GB9501615D0 (en) 1995-01-27 1995-01-27 Method and apparatus for communicating over an electrical cable
PCT/GB1996/000177 WO1996023368A1 (en) 1995-01-27 1996-01-26 Method and apparatus for communicating by means of an electrical power cable

Publications (2)

Publication Number Publication Date
NO973448L true NO973448L (en) 1997-07-25
NO973448D0 NO973448D0 (en) 1997-07-25

Family

ID=10768680

Family Applications (1)

Application Number Title Priority Date Filing Date
NO973448A NO973448D0 (en) 1995-01-27 1997-07-25 Method and apparatus for signal transmission via an electric power line, especially in oil wells

Country Status (4)

Country Link
AU (1) AU4493396A (en)
GB (1) GB9501615D0 (en)
NO (1) NO973448D0 (en)
WO (1) WO1996023368A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19817575A1 (en) * 1998-04-20 1999-10-21 Abb Research Ltd Capacitive coupling cable for signal transmission on high and medium voltage power lines
US6587037B1 (en) * 1999-02-08 2003-07-01 Baker Hughes Incorporated Method for multi-phase data communications and control over an ESP power cable
US6798338B1 (en) * 1999-02-08 2004-09-28 Baker Hughes Incorporated RF communication with downhole equipment
US6552665B1 (en) * 1999-12-08 2003-04-22 Schlumberger Technology Corporation Telemetry system for borehole logging tools
FR2840725B1 (en) * 2002-06-07 2005-12-30 Ksb Sa ANTIDEFLAGRANT MOTOR PUMP GROUP SUPPLYING A LEVEL SENSOR BY THE POWER SUPPLY CABLE
GB0221993D0 (en) * 2002-09-21 2002-10-30 Autonomous Well Company The Electric submersible oil well pump communications
US7436320B2 (en) * 2003-06-16 2008-10-14 Baker Hughes Incorporated Sensor system and method of communicating data between a downhole device on a remote location
US7588080B2 (en) * 2005-03-23 2009-09-15 Baker Hughes Incorporated Method for installing well completion equipment while monitoring electrical integrity
US9350423B2 (en) * 2011-06-30 2016-05-24 The Boeing Company Methods and system for increasing data transmission rates across a three-phase power system
US9683438B2 (en) 2014-09-18 2017-06-20 Baker Hughes Incorporation Communication between downhole tools and a surface processor using a network
US20170297446A1 (en) * 2014-12-18 2017-10-19 Panasonic Intellectual Property Management Co. Ltd. Electrode-attached communication terminal, communication terminal, communication system, electric vehicle, and charging apparatus
CN107100613A (en) * 2016-02-19 2017-08-29 中石化石油工程技术服务有限公司 High-power underground rig carrier wave remote monitoring system
CN105626048A (en) * 2016-03-25 2016-06-01 贵州天石能源科技有限公司 Underground instrument multi-stage parallel-connection system used for oil well testing
GB2566620B (en) 2016-07-20 2021-06-30 Halliburton Energy Services Inc Downhole capacitive coupling systems
CN106194043B (en) * 2016-08-22 2018-07-24 北京嘉禾石油技术有限公司 One kind being based on capacity coupled intelligent drilling rod system
US10934785B2 (en) 2017-06-05 2021-03-02 Halliburton Energy Services, Inc. Downhole wet connection systems
US11323435B2 (en) 2019-05-08 2022-05-03 The Boeing Company Method and apparatus for advanced security systems over a power line connection
WO2021173164A1 (en) * 2020-02-27 2021-09-02 Power Feed-Thru Systems And Connectors Systems and methods for testing electrical properties of a downhole power cable

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB235278A (en) * 1924-03-07 1925-06-08 Electrical Improvements Ltd Improvements in or relating to high frequency telephony or telegraphy
GB806901A (en) * 1956-06-18 1959-01-07 British Thomson Houston Co Ltd Improvements in carrier wave communication systems
US3340500A (en) * 1964-10-08 1967-09-05 Borg Warner System with electrical utilization device having main energization conductors over which information signals are also transferred
US4178579A (en) * 1976-10-05 1979-12-11 Trw Inc. Remote instrumentation apparatus
US4620189A (en) * 1983-08-15 1986-10-28 Oil Dynamics, Inc. Parameter telemetering from the bottom of a deep borehole

Also Published As

Publication number Publication date
WO1996023368A1 (en) 1996-08-01
GB9501615D0 (en) 1995-03-15
NO973448D0 (en) 1997-07-25
AU4493396A (en) 1996-08-14

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application