DE69834015D1 - Unterwasserverstärker und Verfahren für dessen Anwendung - Google Patents

Unterwasserverstärker und Verfahren für dessen Anwendung

Info

Publication number
DE69834015D1
DE69834015D1 DE69834015T DE69834015T DE69834015D1 DE 69834015 D1 DE69834015 D1 DE 69834015D1 DE 69834015 T DE69834015 T DE 69834015T DE 69834015 T DE69834015 T DE 69834015T DE 69834015 D1 DE69834015 D1 DE 69834015D1
Authority
DE
Germany
Prior art keywords
underwater booster
underwater
booster
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69834015T
Other languages
English (en)
Inventor
Harrison C Smith
Paul D Ringgenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Halliburton Energy Services Inc
Original Assignee
Halliburton Energy Services Inc
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 Halliburton Energy Services Inc filed Critical Halliburton Energy Services Inc
Application granted granted Critical
Publication of DE69834015D1 publication Critical patent/DE69834015D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • E21B47/14—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 using acoustic waves
    • 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
    • E21B47/001—Survey of boreholes or wells for underwater installation
    • 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
    • E21B47/13—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 by electromagnetic energy, e.g. radio frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
DE69834015T 1997-12-10 1998-12-10 Unterwasserverstärker und Verfahren für dessen Anwendung Expired - Lifetime DE69834015D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/987,991 US6018501A (en) 1997-12-10 1997-12-10 Subsea repeater and method for use of the same

Publications (1)

Publication Number Publication Date
DE69834015D1 true DE69834015D1 (de) 2006-05-18

Family

ID=25533761

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69834015T Expired - Lifetime DE69834015D1 (de) 1997-12-10 1998-12-10 Unterwasserverstärker und Verfahren für dessen Anwendung

Country Status (3)

Country Link
US (1) US6018501A (de)
EP (1) EP0922836B1 (de)
DE (1) DE69834015D1 (de)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6177882B1 (en) * 1997-12-01 2001-01-23 Halliburton Energy Services, Inc. Electromagnetic-to-acoustic and acoustic-to-electromagnetic repeaters and methods for use of same
NO985712L (no) * 1998-01-27 1999-07-28 Halliburton Energy Serv Inc Nedihulls telemetrisystem og fremgangsmåte for fjernkommunikasjon
US6333699B1 (en) 1998-08-28 2001-12-25 Marathon Oil Company Method and apparatus for determining position in a pipe
US20040239521A1 (en) * 2001-12-21 2004-12-02 Zierolf Joseph A. Method and apparatus for determining position in a pipe
US7283061B1 (en) 1998-08-28 2007-10-16 Marathon Oil Company Method and system for performing operations and for improving production in wells
US6386288B1 (en) 1999-04-27 2002-05-14 Marathon Oil Company Casing conveyed perforating process and apparatus
US6536524B1 (en) 1999-04-27 2003-03-25 Marathon Oil Company Method and system for performing a casing conveyed perforating process and other operations in wells
US6727827B1 (en) 1999-08-30 2004-04-27 Schlumberger Technology Corporation Measurement while drilling electromagnetic telemetry system using a fixed downhole receiver
BR0202248B1 (pt) * 2001-04-23 2014-12-09 Schlumberger Surenco Sa “Sistema de comunicação submarina e método utilizável com um poço submarino
US7014100B2 (en) * 2001-04-27 2006-03-21 Marathon Oil Company Process and assembly for identifying and tracking assets
US6820693B2 (en) 2001-11-28 2004-11-23 Halliburton Energy Services, Inc. Electromagnetic telemetry actuated firing system for well perforating gun
US6702025B2 (en) 2002-02-11 2004-03-09 Halliburton Energy Services, Inc. Hydraulic control assembly for actuating a hydraulically controllable downhole device and method for use of same
FR2840951B1 (fr) * 2002-06-13 2004-12-24 Inst Francais Du Petrole Ensemble d'instrumentation d'une colonne montante de forage offshore
US7178600B2 (en) 2002-11-05 2007-02-20 Weatherford/Lamb, Inc. Apparatus and methods for utilizing a downhole deployment valve
US7219729B2 (en) * 2002-11-05 2007-05-22 Weatherford/Lamb, Inc. Permanent downhole deployment of optical sensors
US7255173B2 (en) 2002-11-05 2007-08-14 Weatherford/Lamb, Inc. Instrumentation for a downhole deployment valve
US7451809B2 (en) * 2002-10-11 2008-11-18 Weatherford/Lamb, Inc. Apparatus and methods for utilizing a downhole deployment valve
US7350590B2 (en) * 2002-11-05 2008-04-01 Weatherford/Lamb, Inc. Instrumentation for a downhole deployment valve
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
US7063148B2 (en) * 2003-12-01 2006-06-20 Marathon Oil Company Method and system for transmitting signals through a metal tubular
US7080699B2 (en) * 2004-01-29 2006-07-25 Schlumberger Technology Corporation Wellbore communication system
EP1577683B1 (de) * 2004-03-16 2008-12-17 Services Petroliers Schlumberger Charakterisierung der Eigenschaften geologischer Formationen durch kombinierte akustische und elektromagnetische Messungen
US8305227B2 (en) 2005-06-15 2012-11-06 Wfs Technologies Ltd. Wireless auxiliary monitoring and control system for an underwater installation
US20070234789A1 (en) * 2006-04-05 2007-10-11 Gerard Glasbergen Fluid distribution determination and optimization with real time temperature measurement
US7557492B2 (en) 2006-07-24 2009-07-07 Halliburton Energy Services, Inc. Thermal expansion matching for acoustic telemetry system
US7595737B2 (en) * 2006-07-24 2009-09-29 Halliburton Energy Services, Inc. Shear coupled acoustic telemetry system
US8540027B2 (en) * 2006-08-31 2013-09-24 Geodynamics, Inc. Method and apparatus for selective down hole fluid communication
US20100182161A1 (en) * 2007-04-28 2010-07-22 Halliburton Energy Services, Inc. Wireless telemetry repeater systems and methods
GB2451258A (en) * 2007-07-25 2009-01-28 Vetco Gray Controls Ltd A wireless subsea electronic control module for a well installation
US10119377B2 (en) * 2008-03-07 2018-11-06 Weatherford Technology Holdings, Llc Systems, assemblies and processes for controlling tools in a well bore
US9194227B2 (en) * 2008-03-07 2015-11-24 Marathon Oil Company Systems, assemblies and processes for controlling tools in a wellbore
US8242928B2 (en) * 2008-05-23 2012-08-14 Martin Scientific Llc Reliable downhole data transmission system
US20100013663A1 (en) 2008-07-16 2010-01-21 Halliburton Energy Services, Inc. Downhole Telemetry System Using an Optically Transmissive Fluid Media and Method for Use of Same
CA2731932C (en) * 2008-07-31 2014-01-21 Halliburton Energy Services, Inc. Method and system of an electromagnetic telemetry repeater
US9234981B2 (en) * 2009-07-31 2016-01-12 Halliburton Energy Services, Inc. Exploitation of sea floor rig structures to enhance measurement while drilling telemetry data
GB2478761B (en) * 2010-03-17 2012-02-22 Wfs Technologies Ltd Wireless auxiliary monitoring and control system for an underwater installation
US8850899B2 (en) 2010-04-15 2014-10-07 Marathon Oil Company Production logging processes and systems
US8930143B2 (en) 2010-07-14 2015-01-06 Halliburton Energy Services, Inc. Resolution enhancement for subterranean well distributed optical measurements
US8584519B2 (en) * 2010-07-19 2013-11-19 Halliburton Energy Services, Inc. Communication through an enclosure of a line
GB201012175D0 (en) * 2010-07-20 2010-09-01 Metrol Tech Ltd Procedure and mechanisms
GB201012176D0 (en) * 2010-07-20 2010-09-01 Metrol Tech Ltd Well
US9175515B2 (en) * 2010-12-23 2015-11-03 Schlumberger Technology Corporation Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same
IT1403940B1 (it) * 2011-02-16 2013-11-08 Eni Spa Sistema di rilevamento di formazioni geologiche
US20120275274A1 (en) * 2011-04-26 2012-11-01 Bp Corporation North America Inc. Acoustic transponder for monitoring subsea measurements from an offshore well
EP2664743A1 (de) * 2012-05-16 2013-11-20 Services Pétroliers Schlumberger Bohrlochinformationsspeicherung und -übertragung
US9823373B2 (en) 2012-11-08 2017-11-21 Halliburton Energy Services, Inc. Acoustic telemetry with distributed acoustic sensing system
US9007231B2 (en) 2013-01-17 2015-04-14 Baker Hughes Incorporated Synchronization of distributed measurements in a borehole
US20140353036A1 (en) * 2013-05-29 2014-12-04 Vetco Gray Inc. Apparatus and Method for Measuring Inclination in Subsea Running, Setting, and Testing Tools
GB2535640B (en) 2013-11-05 2020-08-19 Halliburton Energy Services Inc Downhole position sensor
US10190408B2 (en) * 2013-11-22 2019-01-29 Aps Technology, Inc. System, apparatus, and method for drilling
GB2537494B (en) * 2013-12-23 2020-09-16 Halliburton Energy Services Inc Downhole signal repeater
WO2015102582A1 (en) 2013-12-30 2015-07-09 Halliburton Energy Services, Inc. Position indicator through acoustics
US10119390B2 (en) 2014-01-22 2018-11-06 Halliburton Energy Services, Inc. Remote tool position and tool status indication
US9765613B2 (en) * 2014-03-03 2017-09-19 Aps Technology, Inc. Drilling system and electromagnetic telemetry tool with an electrical connector assembly and associated methods
US9790784B2 (en) 2014-05-20 2017-10-17 Aps Technology, Inc. Telemetry system, current sensor, and related methods for a drilling system
WO2015196278A1 (en) 2014-06-23 2015-12-30 Evolution Engineering Inc. Optimizing downhole data communication with at bit sensors and nodes
US10132956B2 (en) * 2014-10-01 2018-11-20 Ocean Floor Geophysics, Inc. Compensation of magnetic data for autonomous underwater vehicle mapping surveys
GB2531032B (en) * 2014-10-07 2021-01-06 Aker Solutions Ltd Subsea electronics module
US9976413B2 (en) 2015-02-20 2018-05-22 Aps Technology, Inc. Pressure locking device for downhole tools
CA3076596C (en) * 2017-11-08 2022-04-12 Halliburton Energy Services, Inc. Offshore downhole telemetry using sea floor cable
WO2019099188A1 (en) * 2017-11-17 2019-05-23 Exxonmobil Upstream Research Company Method and system for performing wireless ultrasonic communications along tubular members
CN108832983A (zh) * 2018-06-22 2018-11-16 郑州国知网络技术有限公司 一种中继器
BR102018069281B1 (pt) * 2018-09-21 2022-02-22 Petróleo Brasileiro S.A. - Petrobras Sistema e método de monitoramento de poços desconectados
CN111812208B (zh) * 2020-06-30 2024-02-06 中海油田服务股份有限公司 一种海洋自升式平台插桩压载监测装置

Family Cites Families (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2379800A (en) * 1941-09-11 1945-07-03 Texas Co Signal transmission system
US2411696A (en) * 1944-04-26 1946-11-26 Stanolind Oil & Gas Co Well signaling system
US3186222A (en) * 1960-07-28 1965-06-01 Mccullough Tool Co Well signaling system
US3333239A (en) * 1965-12-16 1967-07-25 Pan American Petroleum Corp Subsurface signaling technique
US3205477A (en) * 1961-12-29 1965-09-07 David C Kalbfell Electroacoustical logging while drilling wells
US3227228A (en) * 1963-05-24 1966-01-04 Clyde E Bannister Rotary drilling and borehole coring apparatus and method
US3233674A (en) * 1963-07-22 1966-02-08 Baker Oil Tools Inc Subsurface well apparatus
US5029147A (en) * 1969-02-26 1991-07-02 The United States Of America As Represented By The Secretary Of The Navy Acoustic, underwater, telemetry system
FR2040580A5 (de) * 1969-04-03 1971-01-22 Inst Francais Du Petrole
US5583504A (en) * 1970-04-01 1996-12-10 United States Of America As Represented By The Secretary Of The Air Force Method and system of producing phase front distortion
US3930220A (en) * 1973-09-12 1975-12-30 Sun Oil Co Pennsylvania Borehole signalling by acoustic energy
DE2416063C3 (de) * 1974-04-03 1978-03-30 Erich 3000 Hannover Krebs Vorrichtung zum Messen und drahtlosen Übertragen von Meßwerten zur Erdoberfläche
CA1062336A (en) * 1974-07-01 1979-09-11 Robert K. Cross Electromagnetic lithosphere telemetry system
US4065747A (en) * 1975-11-28 1977-12-27 Bunker Ramo Corporation Acoustical underwater communication system for command control and data
US4019148A (en) * 1975-12-29 1977-04-19 Sperry-Sun, Inc. Lock-in noise rejection circuit
US4293936A (en) * 1976-12-30 1981-10-06 Sperry-Sun, Inc. Telemetry system
US4309763A (en) * 1977-03-02 1982-01-05 Refraction Technology, Inc. Digital sonobuoy
US4161715A (en) * 1977-09-02 1979-07-17 Electric Power Research Institute, Inc. Method and apparatus for measuring the interior dimensions of a hollow body
US4160970A (en) * 1977-11-25 1979-07-10 Sperry Rand Corporation Electromagnetic wave telemetry system for transmitting downhole parameters to locations thereabove
US4215426A (en) * 1978-05-01 1980-07-29 Frederick Klatt Telemetry and power transmission for enclosed fluid systems
US4181014A (en) * 1978-05-04 1980-01-01 Scientific Drilling Controls, Inc. Remote well signalling apparatus and methods
US4302757A (en) * 1979-05-09 1981-11-24 Aerospace Industrial Associates, Inc. Bore telemetry channel of increased capacity
US4363137A (en) * 1979-07-23 1982-12-07 Occidental Research Corporation Wireless telemetry with magnetic induction field
US4293937A (en) * 1979-08-10 1981-10-06 Sperry-Sun, Inc. Borehole acoustic telemetry system
US4298970A (en) * 1979-08-10 1981-11-03 Sperry-Sun, Inc. Borehole acoustic telemetry system synchronous detector
US4320473A (en) * 1979-08-10 1982-03-16 Sperry Sun, Inc. Borehole acoustic telemetry clock synchronization system
DE3027755A1 (de) * 1980-07-22 1982-02-11 Siemens AG, 1000 Berlin und 8000 München Verfahren zur ueberwachung von zwischenregeneratoren
US4373582A (en) * 1980-12-22 1983-02-15 Exxon Production Research Co. Acoustically controlled electro-mechanical circulation sub
US4562559A (en) * 1981-01-19 1985-12-31 Nl Sperry Sun, Inc. Borehole acoustic telemetry system with phase shifted signal
US4468665A (en) * 1981-01-30 1984-08-28 Tele-Drill, Inc. Downhole digital power amplifier for a measurements-while-drilling telemetry system
US4725837A (en) * 1981-01-30 1988-02-16 Tele-Drill, Inc. Toroidal coupled telemetry apparatus
US4496174A (en) * 1981-01-30 1985-01-29 Tele-Drill, Inc. Insulated drill collar gap sub assembly for a toroidal coupled telemetry system
US4348672A (en) * 1981-03-04 1982-09-07 Tele-Drill, Inc. Insulated drill collar gap sub assembly for a toroidal coupled telemetry system
US4387372A (en) * 1981-03-19 1983-06-07 Tele-Drill, Inc. Point gap assembly for a toroidal coupled telemetry system
US4428073A (en) * 1981-11-02 1984-01-24 The United States Of America As Represented By The Secretary Of The Navy Underwater depth telemetry
US4525715A (en) * 1981-11-25 1985-06-25 Tele-Drill, Inc. Toroidal coupled telemetry apparatus
US4578675A (en) * 1982-09-30 1986-03-25 Macleod Laboratories, Inc. Apparatus and method for logging wells while drilling
US4739325A (en) * 1982-09-30 1988-04-19 Macleod Laboratories, Inc. Apparatus and method for down-hole EM telemetry while drilling
US4908804A (en) * 1983-03-21 1990-03-13 Develco, Inc. Combinatorial coded telemetry in MWD
FR2562601B2 (fr) * 1983-05-06 1988-05-27 Geoservices Dispositif pour transmettre en surface les signaux d'un emetteur situe a grande profondeur
US4691203A (en) * 1983-07-01 1987-09-01 Rubin Llewellyn A Downhole telemetry apparatus and method
US4616702A (en) * 1984-05-01 1986-10-14 Comdisco Resources, Inc. Tool and combined tool support and casing section for use in transmitting data up a well
US4599745A (en) * 1984-05-21 1986-07-08 The United States Of America As Represented By The Secretary Of The Navy Hybrid fiber optics and radio frequency telemetry apparatus for acquiring data from an underwater environment
NO844838L (no) * 1984-12-04 1986-06-05 Saga Petroleum Fremgangsmaate ved registrering av forbindelse mellom oljebroenners reservoarer.
US4617960A (en) * 1985-05-03 1986-10-21 Develco, Inc. Verification of a surface controlled subsurface actuating device
WO1987004755A1 (en) * 1986-02-07 1987-08-13 Comdisco Resources, Inc. Method and apparatus for data transmission in a well using a flexible line with stiffener
IT1191903B (it) * 1986-05-15 1988-03-31 Selenia Spazio Spa Sistema di codifica-decodifica concatenata per la protezione dai disturbi di trasmissioni digitali effettuate attraverso un ripetitore rigenerativo intermedio
FR2600171B1 (fr) * 1986-06-17 1990-10-19 Geoservices Antenne pour emetteur situe a grande profondeur
FR2606963B1 (fr) * 1986-11-14 1989-01-13 Cit Alcatel Boitier de repeteur sous-marin
US4698631A (en) * 1986-12-17 1987-10-06 Hughes Tool Company Surface acoustic wave pipe identification system
US4845493A (en) * 1987-01-08 1989-07-04 Hughes Tool Company Well bore data transmission system with battery preserving switch
US4788544A (en) * 1987-01-08 1988-11-29 Hughes Tool Company - Usa Well bore data transmission system
US4839644A (en) * 1987-06-10 1989-06-13 Schlumberger Technology Corp. System and method for communicating signals in a cased borehole having tubing
US4901069A (en) * 1987-07-16 1990-02-13 Schlumberger Technology Corporation Apparatus for electromagnetically coupling power and data signals between a first unit and a second unit and in particular between well bore apparatus and the surface
FR2621072B1 (fr) * 1987-09-28 1989-12-01 Alsthom Systeme de transmission electromagnetique d'information depuis le fond au cours d'un forage et emetteur pour ce systeme
NO163578C (no) * 1987-10-23 1990-06-20 Saga Petroleum Fremgangsmaate og innretning for overfoering av maaledata fra en oljebroenn til overflaten.
US5087099A (en) * 1988-09-02 1992-02-11 Stolar, Inc. Long range multiple point wireless control and monitoring system
US5268683A (en) * 1988-09-02 1993-12-07 Stolar, Inc. Method of transmitting data from a drillhead
US4968978A (en) * 1988-09-02 1990-11-06 Stolar, Inc. Long range multiple point wireless control and monitoring system
US5018114A (en) * 1988-12-13 1991-05-21 The United States Of America As Represented By The Secretary Of The Navy Adjustable frequency diversity acoustic communications system
US4933640A (en) * 1988-12-30 1990-06-12 Vector Magnetics Apparatus for locating an elongated conductive body by electromagnetic measurement while drilling
US5119500A (en) * 1989-10-10 1992-06-02 The United States Of America As Represented By The Secretary Of The Navy Meteor burst communication system
US5047990A (en) * 1990-06-01 1991-09-10 The United States Of America As Represented By The Secretary Of The Navy Underwater acoustic data acquisition system
US5160925C1 (en) * 1991-04-17 2001-03-06 Halliburton Co Short hop communication link for downhole mwd system
US5130706A (en) * 1991-04-22 1992-07-14 Scientific Drilling International Direct switching modulation for electromagnetic borehole telemetry
US5283768A (en) * 1991-06-14 1994-02-01 Baker Hughes Incorporated Borehole liquid acoustic wave transducer
US5493288A (en) * 1991-06-28 1996-02-20 Elf Aquitaine Production System for multidirectional information transmission between at least two units of a drilling assembly
FR2681461B1 (fr) * 1991-09-12 1993-11-19 Geoservices Procede et agencement pour la transmission d'informations, de parametres et de donnees a un organe electro-magnetique de reception ou de commande associe a une canalisation souterraine de grande longueur.
NO306522B1 (no) * 1992-01-21 1999-11-15 Anadrill Int Sa Fremgangsmaate for akustisk overföring av maalesignaler ved maaling under boring
FR2697119B1 (fr) * 1992-10-16 1995-01-20 Schlumberger Services Petrol Dispositif émetteur à double raccord isolant, destiné à l'emploi dans un forage.
US5319376A (en) * 1992-12-01 1994-06-07 Trw Inc. Arctic submarine buoy and application methods
FR2699713B1 (fr) * 1992-12-17 1995-03-24 Hubert Thomas Procédé et dispositif de contrôle à distance d'un engin sous marin inhabité.
WO1994029749A1 (en) * 1993-06-04 1994-12-22 Gas Research Institute, Inc. Method and apparatus for communicating signals from encased borehole
US5379034A (en) * 1993-06-15 1995-01-03 The United States Of America As Represented By The Secretary Of The Navy Apparatus and method of radio communication from a submerged underwater vehicle
CA2127921A1 (en) * 1993-07-26 1995-01-27 Wallace Meyer Method and apparatus for electric/acoustic telemetry
US5467083A (en) * 1993-08-26 1995-11-14 Electric Power Research Institute Wireless downhole electromagnetic data transmission system and method
US5530358A (en) * 1994-01-25 1996-06-25 Baker Hughes, Incorporated Method and apparatus for measurement-while-drilling utilizing improved antennas
NO305219B1 (no) * 1994-03-16 1999-04-19 Aker Eng As FremgangsmÕte og sender/mottaker for overf°ring av signaler via et medium i r°r eller slanger
US5452262A (en) * 1994-10-11 1995-09-19 The United States Of America As Represented By The Secretary Of The Navy Radio telemetry buoy for long-range communication
US5691712A (en) * 1995-07-25 1997-11-25 Schlumberger Technology Corporation Multiple wellbore tool apparatus including a plurality of microprocessor implemented wellbore tools for operating a corresponding plurality of included wellbore tools and acoustic transducers in response to stimulus signals and acoustic signals

Also Published As

Publication number Publication date
EP0922836A1 (de) 1999-06-16
US6018501A (en) 2000-01-25
EP0922836B1 (de) 2006-03-29

Similar Documents

Publication Publication Date Title
DE69834015D1 (de) Unterwasserverstärker und Verfahren für dessen Anwendung
DE69605981D1 (de) Gegossener Flächenhaftverschluss und Verfahren für dessen Herstellung
DE69730259D1 (de) Schichtstoff und Verfahren zu dessen Herstellung
DE69714615D1 (de) Reinigungsmittel sowie verfahren für seine anwendung
DE59706552D1 (de) Geschoss und Verfahren zu dessen Herstellung
DE69834401D1 (de) Businterfacesystem und verfahren
DE69629151D1 (de) Gegossener Flächenhaftverschluss und Verfahren für dessen Herstellung
DE69838817D1 (de) Disinfektionsmittel und verfahren zu dessen herstellung
DE69504892D1 (de) Mischelement und Verfahren zu dessen Herstellung
DE69516444D1 (de) Ultraschall Wandleranordnung und Verfahren zu dessen Herstellung
DE69737053D1 (de) Chip-Widerstand und Verfahren zu dessen Herstellung
DE69532895D1 (de) Biomaterial und verfahren zu dessen herstellung
DE69823980D1 (de) Lederartiges material und verfahren zu dessen herstellung
DE69631354D1 (de) Kreuzströmwabenkörper und Verfahren zu dessen Herstellung
DE19781684T1 (de) Flachkabel und Verfahren zu dessen Herstellung
DE69818107D1 (de) Schaumstoff umfassender schleifgegenstand und verfahren zu dessen herstellung
DE59808654D1 (de) Verfahren zum aufbringen definierter betätigungskräfte
DE69511080D1 (de) Schnittstellenanordnung und verfahren
DE69820936D1 (de) Kunststoffbeschichteter Ventil-Rotor und Verfahren zu dessen Herstellung
DE69800592D1 (de) Teilschneidevorrichtung für Streifendrucker und Verfahren zu dessen Herstellung
DE69738518D1 (de) Leiterähnlicher Widerstand und Verfahren zu dessen Herstellung
DE69837849D1 (de) Kohlekommutator und verfahren zu dessen herstellung
DE69602217D1 (de) Elektrisch gesteuertes Expansionsventil und Verfahren zu dessen Herstellung
DE69502301D1 (de) Ladesystem und Verfahren zu dessen Herstellung
DE69905326D1 (de) Sollerschlitz und Verfahren zu dessen Herstellung

Legal Events

Date Code Title Description
8332 No legal effect for de