DE102005013607A1 - Vorrichtung und Verfahren zum Bestimmen unterirdischer Eigenschaften - Google Patents

Vorrichtung und Verfahren zum Bestimmen unterirdischer Eigenschaften Download PDF

Info

Publication number
DE102005013607A1
DE102005013607A1 DE102005013607A DE102005013607A DE102005013607A1 DE 102005013607 A1 DE102005013607 A1 DE 102005013607A1 DE 102005013607 A DE102005013607 A DE 102005013607A DE 102005013607 A DE102005013607 A DE 102005013607A DE 102005013607 A1 DE102005013607 A1 DE 102005013607A1
Authority
DE
Germany
Prior art keywords
transmitter
receiver
determining subterranean
subterranean properties
electromagnetic energy
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.)
Withdrawn
Application number
DE102005013607A
Other languages
English (en)
Inventor
Dean M Homan
Dzevat Omeragic
Tianhua Zhang
Nicolas Sebline
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.)
Schlumberger Technology BV
Original Assignee
Schlumberger Technology BV
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 BV filed Critical Schlumberger Technology BV
Publication of DE102005013607A1 publication Critical patent/DE102005013607A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/26Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/26Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
    • G01V3/28Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/30Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with electromagnetic waves

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

Die Erfindung betrifft eine Vorrichtung (20) zum Bestimmen unterirdischer Eigenschaften, mit einem langgestreckten Körper (22), der eine Längsachse aufweist und zum Anordnen in einem unterirdischen Bohrloch (11) ausgestaltet ist, einem Sender (T), der am Körper (22) angeordnet und zum Aussenden elektromagnetischer Energie ausgestaltet ist, und einem Empfänger (R), der am Körper (22) beabstandet vom Sender (T) angeordnet und zum Empfangen elektromagnetischer Energie ausgestaltet ist, wobei der Empfänger (R) in einem Abstand von weniger als etwa 15 cm vom Sender (T) angeordnet ist und der Sender (T) oder Empfänger (R) wenigstens eine Antenne aufweist, deren Achse in bezug auf die Längsachse des Körpers (22) schräggestellt ist.
DE102005013607A 2004-03-29 2005-03-24 Vorrichtung und Verfahren zum Bestimmen unterirdischer Eigenschaften Withdrawn DE102005013607A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/812,369 US7239145B2 (en) 2004-03-29 2004-03-29 Subsurface electromagnetic measurements using cross-magnetic dipoles

Publications (1)

Publication Number Publication Date
DE102005013607A1 true DE102005013607A1 (de) 2005-10-20

Family

ID=34552936

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102005013607A Withdrawn DE102005013607A1 (de) 2004-03-29 2005-03-24 Vorrichtung und Verfahren zum Bestimmen unterirdischer Eigenschaften

Country Status (7)

Country Link
US (2) US7239145B2 (de)
CN (1) CN100504444C (de)
CA (1) CA2502177C (de)
DE (1) DE102005013607A1 (de)
FR (1) FR2868806B1 (de)
GB (1) GB2412743B (de)
RU (1) RU2377608C2 (de)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7420367B2 (en) * 2004-09-10 2008-09-02 Baker Hughes Incorporated High-frequency induction imager with concentric coils for MWD and wireline applications
US7091722B2 (en) * 2004-09-29 2006-08-15 Schlumberger Technology Corporation Method and apparatus for measuring mud resistivity
EP1693685B1 (de) 2005-02-22 2014-10-22 Services Petroliers Schlumberger Elektromagnetische Sonde
US8072220B2 (en) * 2005-12-16 2011-12-06 Raytheon Utd Inc. Positioning, detection and communication system and method
GB0604829D0 (en) * 2006-03-10 2006-04-19 Mtem Ltd Optimisation of mtem parameters
US20100332137A1 (en) * 2006-09-06 2010-12-30 Multi-Shot, Llc. Casing detection
US7800372B2 (en) * 2006-09-20 2010-09-21 Baker Hughes Incorporated Resistivity tools with segmented azimuthally sensitive antennas and methods of making same
US7663372B2 (en) * 2006-09-25 2010-02-16 Baker Hughes Incorporated Resistivity tools with collocated antennas
US8378908B2 (en) * 2007-03-12 2013-02-19 Precision Energy Services, Inc. Array antenna for measurement-while-drilling
US7912648B2 (en) * 2007-10-02 2011-03-22 Baker Hughes Incorporated Method and apparatus for imaging bed boundaries using azimuthal propagation resistivity measurements
US8278930B2 (en) * 2008-05-01 2012-10-02 Baker Hughes Incorporated Deep MWD resistivity measurements using EM shielding
US8036830B2 (en) * 2008-05-29 2011-10-11 Baker Hughes Incorporated Resistivity imager in non-conductive mud for LWD and wireline applications
US8776878B2 (en) * 2008-10-31 2014-07-15 Schlumberger Technology Corporation Sensor for determining downhole parameters and methods for using same
US9377556B2 (en) * 2009-03-13 2016-06-28 Schlumberger Technology Corporation Systems and methods for electromagnetic detection of a formation anomaly from a near bit location while drilling
US8368403B2 (en) 2009-05-04 2013-02-05 Schlumberger Technology Corporation Logging tool having shielded triaxial antennas
US9134449B2 (en) * 2009-05-04 2015-09-15 Schlumberger Technology Corporation Directional resistivity measurement for well placement and formation evaluation
US8195400B2 (en) * 2009-05-08 2012-06-05 Smith International, Inc. Directional resistivity imaging using harmonic representations
US8159227B2 (en) * 2009-05-11 2012-04-17 Smith International Inc. Methods for making directional resistivity measurements
US7990153B2 (en) * 2009-05-11 2011-08-02 Smith International, Inc. Compensated directional resistivity measurements
US20120133367A1 (en) * 2009-08-20 2012-05-31 Halliburton Energy Services, Inc. Fracture Characterization Using Directional Electromagnetic Resistivity Measurements
US8294418B2 (en) * 2010-02-03 2012-10-23 ConvenientPower, Ltd. Power transfer device and method
US8301077B2 (en) * 2009-09-24 2012-10-30 ConvenientPower, Ltd Antenna network for passive and active signal enhancement
US20110199045A1 (en) * 2010-02-15 2011-08-18 Convenientpower Hk Ltd Power transfer device and method
US8466682B2 (en) * 2009-09-29 2013-06-18 Schlumberger Technology Corporation Apparatus and method for downhole electromagnetic measurement while drilling
US8271199B2 (en) * 2009-12-31 2012-09-18 Smith International, Inc. Binning method for borehole imaging
MY159410A (en) 2010-04-15 2017-01-13 Halliburton Energy Services Inc Processing and geosteering with a rotating tool
MX2012012589A (es) 2010-04-29 2013-01-18 Schlumberger Technology Bv Mediciones correctivas de aumento.
US8600115B2 (en) 2010-06-10 2013-12-03 Schlumberger Technology Corporation Borehole image reconstruction using inversion and tool spatial sensitivity functions
US20110316542A1 (en) * 2010-06-29 2011-12-29 Frey Mark T Slotted shield for logging-while-drilling tool
WO2012030327A1 (en) 2010-08-31 2012-03-08 Halliburton Energy Services, Inc. Method and apparatus for downhole measurement tools
US8536871B2 (en) 2010-11-02 2013-09-17 Schlumberger Technology Corporation Method of correcting resistivity measurements for toll bending effects
IT1403940B1 (it) * 2011-02-16 2013-11-08 Eni Spa Sistema di rilevamento di formazioni geologiche
US8626446B2 (en) 2011-04-01 2014-01-07 Schlumberger Technology Corporation Method of directional resistivity logging
WO2013019224A1 (en) * 2011-08-03 2013-02-07 Halliburton Energy Services, Inc. Method and apparatus to detect a conductive body
US10539009B2 (en) * 2011-08-10 2020-01-21 Scientific Drilling International, Inc. Short range data transmission in a borehole
US9726008B2 (en) * 2011-09-26 2017-08-08 Scientific Drilling International, Inc. Sub-surface formation boundary detection using an electric-field borehole telemetry apparatus
US10371852B2 (en) 2011-12-21 2019-08-06 Schlumberger Technology Corporation Formation properties from conductivity tensor
WO2014003784A2 (en) 2012-06-29 2014-01-03 Halliburton Energy Services, Inc. Full tensor micro-impedance imaging
WO2014003786A1 (en) 2012-06-29 2014-01-03 Halliburton Energy Services, Inc. Multi - axial induction borehole imager
US9863237B2 (en) 2012-11-26 2018-01-09 Baker Hughes, A Ge Company, Llc Electromagnetic telemetry apparatus and methods for use in wellbore applications
WO2014105090A1 (en) * 2012-12-31 2014-07-03 Halliburton Energy Services, Inc. Time-frequency domain multiplexing apparatus, methods, and systems
US10156138B2 (en) 2013-01-03 2018-12-18 Halliburton Energy Services, Inc. System and method for collecting a representative formation fluid during downhole testing operations
WO2014201297A2 (en) * 2013-06-12 2014-12-18 Well Resolutions Technology Apparatus and methods for making azimuthal resistivity measurements
US9964660B2 (en) 2013-07-15 2018-05-08 Baker Hughes, A Ge Company, Llc Electromagnetic telemetry apparatus and methods for use in wellbores
CN103437756A (zh) * 2013-09-12 2013-12-11 北京环鼎科技有限责任公司 一种偶极子声波测井仪
BR112016003707A2 (pt) * 2013-10-03 2017-09-12 Halliburton Energy Services Inc ferramenta de fundo de poço e método para fazer medição de fundo de poço
EP2912264A4 (de) * 2013-10-03 2016-02-24 Halliburton Energy Services Inc Bohrlochwerkzeug mit einer radialen anordnung von anpassbaren sensoren zur bohrlocherfassung und -abbildung
MX2016002230A (es) * 2013-10-03 2016-11-25 Halliburton Energy Services Inc Sensores de multiples capas para inspecciones en el interior del pozo.
US9562988B2 (en) 2013-12-13 2017-02-07 Halliburton Energy Services, Inc. Methods and systems of electromagnetic interferometry for downhole environments
CN103670379A (zh) * 2013-12-18 2014-03-26 贝兹维仪器(苏州)有限公司 一种利用高频磁力仪随钻边界探测装置及方法
US9448324B2 (en) * 2014-03-29 2016-09-20 Schlumberger Technology Corporation Gain compensated directional propagation measurements
US10302796B2 (en) 2014-11-26 2019-05-28 Halliburton Energy Services, Inc. Onshore electromagnetic reservoir monitoring
AU2014415593B2 (en) 2014-12-30 2018-04-12 Halliburton Energy Services, Inc. Adjustable acoustic transducers for a downhole tool
DE112016003528T5 (de) * 2015-08-03 2018-04-19 Halliburton Energy Services, Inc. Tellurisches Referenzieren zur Verbesserung der elektromagnetischen Telemetrie
US10386528B2 (en) * 2015-09-14 2019-08-20 Schlumberger Technology Corporation Method for estimating formation dip azimuth and eccentering azimuth
EP3325766B1 (de) 2015-10-28 2021-03-31 Halliburton Energy Services, Inc. Induktive hohlraumsensoren für widerstandswerkzeuge
US10520633B2 (en) 2015-12-10 2019-12-31 Baker Hughes, A Ge Company, Llc Dual-transmitter with short shields for transient MWD resistivity measurements
WO2017146679A1 (en) * 2016-02-23 2017-08-31 Halliburton Energy Services, Inc. Formation imaging with electronic beam steering
US10324432B2 (en) * 2016-04-21 2019-06-18 Baker Hughes, A Ge Company, Llc Estimation of electromagnetic tool sensitivity range
US10459110B2 (en) * 2016-07-08 2019-10-29 Baker Hughes, A Ge Company, Llc Flexible conductive shield for downhole electromagnetic noise suppression
CN109661596B (zh) * 2016-08-15 2021-10-26 奥力登科技有限责任公司 使用多个天线确定全电磁耦合张量
GB201622186D0 (en) 2016-12-23 2017-02-08 Weatherford Uk Ltd Antenna for downhole communication
MX2020003072A (es) * 2017-10-31 2020-07-28 Halliburton Energy Services Inc Procesamiento de imagenes de resistividad en pozos con lodos a base de aceite.
CN109057781B (zh) * 2018-07-26 2022-05-10 中国石油天然气集团有限公司 一种随钻多分量多探测深度电磁波天线系统及测量方法
US10900353B2 (en) * 2018-09-17 2021-01-26 Saudi Arabian Oil Company Method and apparatus for sub-terrain chlorine ion detection in the near wellbore region in an open-hole well
US11434753B2 (en) 2019-10-14 2022-09-06 Halliburton Energy Services, Inc. Faraday shield
US11150341B2 (en) 2020-02-18 2021-10-19 HG Partners, LLC Continuous-wave radar system for detecting ferrous and non-ferrous metals in saltwater environments
US11960000B2 (en) 2020-02-18 2024-04-16 HG Partners, LLC Continuous-wave radar system for detecting ferrous and non-ferrous metals in saltwater environments
US11686839B1 (en) 2020-02-18 2023-06-27 HG Partners, LLC Continuous-wave radar system for detecting ferrous and non-ferrous metals in saltwater environments
NO20230199A1 (en) 2020-08-12 2023-02-28 Baker Hughes Oilfield Operations Llc Dedicated sub for look-ahead applications
CN112697597B (zh) * 2020-12-03 2023-02-28 中国石油天然气股份有限公司 井下柔性复合管伸长率测试方法、系统、设备及存储介质
AU2023212135A1 (en) 2022-01-28 2024-08-15 X Development Llc Electromagnetic surveys with power transmission lines

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808520A (en) 1973-01-08 1974-04-30 Chevron Res Triple coil induction logging method for determining dip, anisotropy and true resistivity
US3973181A (en) 1974-12-19 1976-08-03 Schlumberger Technology Corporation High frequency method and apparatus for electrical investigation of subsurface earth formations surrounding a borehole containing an electrically non-conductive fluid
US4383220A (en) 1979-05-07 1983-05-10 Mobil Oil Corporation Microwave electromagnetic borehole dipmeter
US4302722A (en) 1979-06-15 1981-11-24 Schlumberger Technology Corporation Induction logging utilizing resistive and reactive induced signal components to determine conductivity and coefficient of anisotropy
SU1107671A1 (ru) 1982-12-17 1985-05-30 Центральная геофизическая экспедиция Министерства нефтяной промышленности Зонд дл электромагнитного каротажа скважин
GB2166599B (en) 1984-11-02 1988-06-08 Coal Ind Borehole located directional antennae means for electromagnetic sensing systems
SU1257593A1 (ru) 1985-04-04 1986-09-15 Всесоюзный научно-исследовательский институт нефтепромысловой геофизики Устройство дл каротажных электрических зондирований
US4857852A (en) 1986-06-20 1989-08-15 Schlumberger Technology Corp. Induction well logging apparatus with transformer coupled phase sensitive detector
US5168234A (en) * 1990-09-07 1992-12-01 Schlumberger Technology Corporation Method and apparatus for measuring azimuthal as well as longitudinal waves in a formation traversed by a borehole
US5235285A (en) 1991-10-31 1993-08-10 Schlumberger Technology Corporation Well logging apparatus having toroidal induction antenna for measuring, while drilling, resistivity of earth formations
NZ333980A (en) 1996-07-01 2000-03-27 Shell Int Research Determining an electric conductivity of an earth formation formed of different earth layers penetrated by a wellbore
US6191588B1 (en) 1998-07-15 2001-02-20 Schlumberger Technology Corporation Methods and apparatus for imaging earth formation with a current source, a current drain, and a matrix of voltage electrodes therebetween
CN1195996C (zh) 1998-12-30 2005-04-06 贝克休斯公司 由钻孔电阻率图像仪、横向感应测井纪录以及含水饱和度张量模型确定水饱和度及砂岩体积百分比的方法
US6493632B1 (en) 1998-12-30 2002-12-10 Baker Hughes Incorporated Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and a tensorial water saturation model
US6163155A (en) 1999-01-28 2000-12-19 Dresser Industries, Inc. Electromagnetic wave resistivity tool having a tilted antenna for determining the horizontal and vertical resistivities and relative dip angle in anisotropic earth formations
US6476609B1 (en) * 1999-01-28 2002-11-05 Dresser Industries, Inc. Electromagnetic wave resistivity tool having a tilted antenna for geosteering within a desired payzone
US6351127B1 (en) 1999-12-01 2002-02-26 Schlumberger Technology Corporation Shielding method and apparatus for selective attenuation of an electromagnetic energy field component
US6297639B1 (en) 1999-12-01 2001-10-02 Schlumberger Technology Corporation Method and apparatus for directional well logging with a shield having sloped slots
US6566881B2 (en) 1999-12-01 2003-05-20 Schlumberger Technology Corporation Shielding method and apparatus using transverse slots
US6788065B1 (en) * 2000-10-12 2004-09-07 Schlumberger Technology Corporation Slotted tubulars for subsurface monitoring in directed orientations
US6600321B2 (en) 2001-04-18 2003-07-29 Baker Hughes Incorporated Apparatus and method for wellbore resistivity determination and imaging using capacitive coupling
WO2002086545A1 (en) * 2001-04-21 2002-10-31 Em-Tech Llc Measurement of subterranean lithology using electromagnetic energy
US6584408B2 (en) * 2001-06-26 2003-06-24 Schlumberger Technology Corporation Subsurface formation parameters from tri-axial measurements
US6969994B2 (en) 2001-09-26 2005-11-29 Schlumberger Technology Corporation Directional electromagnetic measurements insensitive to dip and anisotropy
US6768299B2 (en) 2001-12-20 2004-07-27 Schlumberger Technology Corporation Downhole magnetic-field based feature detector
GB2405213B (en) * 2001-12-20 2005-07-27 Schlumberger Holdings Downhole magnetic field based feature detector
CA2415921C (en) 2002-01-14 2013-11-26 Computalog Usa Inc. Method and apparatus for full offset resistivity imaging for use in boreholes
US6690170B2 (en) 2002-03-29 2004-02-10 Schlumberger Technology Corporation Antenna structures for electromagnetic well logging tools
US6667620B2 (en) 2002-03-29 2003-12-23 Schlumberger Technology Corporation Current-directing shield apparatus for use with transverse magnetic dipole antennas
US7382135B2 (en) * 2003-05-22 2008-06-03 Schlumberger Technology Corporation Directional electromagnetic wave resistivity apparatus and method
US6957708B2 (en) * 2003-07-08 2005-10-25 Baker Hughes Incorporated Electrical imaging in conductive and non-conductive mud
US7202670B2 (en) * 2003-08-08 2007-04-10 Schlumberger Technology Corporation Method for characterizing a subsurface formation with a logging instrument disposed in a borehole penetrating the formation
US7525315B2 (en) * 2004-04-01 2009-04-28 Schlumberger Technology Corporation Resistivity logging tool and method for building the resistivity logging tool
US7719282B2 (en) * 2004-04-14 2010-05-18 Baker Hughes Incorporated Method and apparatus for mulit-component induction instrument measuring system for geosteering and formation resistivity data interpretation in horizontal, vertical and deviated wells
US7536261B2 (en) * 2005-04-22 2009-05-19 Schlumberger Technology Corporation Anti-symmetrized electromagnetic measurements

Also Published As

Publication number Publication date
CN1677128A (zh) 2005-10-05
FR2868806B1 (fr) 2015-12-25
RU2377608C2 (ru) 2009-12-27
US20080290873A1 (en) 2008-11-27
US7239145B2 (en) 2007-07-03
CA2502177A1 (en) 2005-09-29
CA2502177C (en) 2009-08-25
CN100504444C (zh) 2009-06-24
US20050212520A1 (en) 2005-09-29
FR2868806A1 (fr) 2005-10-14
GB2412743A (en) 2005-10-05
US7759943B2 (en) 2010-07-20
GB2412743B (en) 2007-05-23
GB0505654D0 (en) 2005-04-27
RU2005108678A (ru) 2006-10-10

Similar Documents

Publication Publication Date Title
DE102005013607A1 (de) Vorrichtung und Verfahren zum Bestimmen unterirdischer Eigenschaften
ATE365511T1 (de) System für die verbesserte materialverarbeitung mit einem laserstrahl
DE60212468D1 (de) Verfahren und Vorrichtung zum Justieren einer Einbauanordnung für Radar, sowie Radar justiert von diesem Verfahren oder dieser Vorrichtung
DE69914338D1 (de) Vorrichtung und verfahren zum perforieren und stimulieren von unterirdischen schichten
AT500389A3 (de) Verfahren und vorrichtung zum automatischen erkennen der bauart einer mit einer drahtzuführvorrichtung verbundenen pistole
DE69933284D1 (de) Vorrichtung und verfahren zur stimulierung von unterirdischen formationen
GB2463437A (en) System, method and apparatus for acid fracturing with scale inhibitor protection
DE602004007461D1 (de) Verfahren und Vorrichtung mit adaptiven Gruppenantennenempfang
DE59600316D1 (de) Such- und Räumeinrichtung für Landminen, sowie Verfahren zur Ortung und Zerstörung einer Landmine mittels dieser Such- und Räumeinrichtung
CH498257A (de) Verfahren und Vorrichtung zum Fördern von Ablagerungen, insbesondere von Kies und dgl.
EA200800458A1 (ru) Устройство и способ импульсной электромагнитной разведки с использованием магнитной компоненты электромагнитной антенны
DE60314160D1 (de) Verfahren und vorrichtung zum austausch von unterirdischen rohren
ATE293746T1 (de) Verfahren und vorrichtung zur tiefenmessung
ATE423384T1 (de) Verfahren und vorrichtung zum herstellen eines coaxialkabels mit zusammengesetztem innenleiter
AT354151B (de) Verfahren und vorrichtung zum feststellen und gegebenenfalls beseitigen von an oder nahe unterhalb der oberflaechen von metallischen rohlingen, insbesondere stahlbrammen, befindlichen fehlern wie risse, ueberwalzungen, lunker, schuppen od.dgl.
EP1351031A3 (de) Minensuch- und Räumsystem für Landminen
DE3763517D1 (de) Verfahren und vorrichtung um messungen auszufuehren, welche geologische formationen kennzeichnen in einem horizontalen bohrloch, das von einer unterirdischen strecke her realisiert ist.
DE69013661D1 (de) Verfahren und Vorrichtung zur Stimulation einer Untergrundformation durch Injektion eines Fluids aus einer benachbarten Schicht, entlängs von Rissen, ausgehend von einer Bohrung in einer niedrigpermeablen Zwischenschicht.
DE69826527D1 (de) Vorrichtung zur komplettierung einer unterirdischen bohrung und verfahren zu deren verwendung
ATE391549T1 (de) Verfahren und vorrichtung zum entsalzen von wasser mit druckabfallüberbrückung
ATE400997T1 (de) Vorrichtung und verfahren zum treiben von tieren in einem länglichen korridorabschnitt
DE602004005293D1 (de) Elektronisches Gerät mit Rundfunksempfangsfunktion und Verfahren zum Anzeigen von einem elektronischen Programmführer darin
EP1039426A3 (de) Vorrichtung zur Erkennung von Rauch
ATE281585T1 (de) Verfahren und vorrichtung zum ausrüsten eines bohrloches zur gewinnung von kohlenwasserstoffen oder dergleichen
SA520420619B1 (ar) مواد تحويل دقائقية متعددة الدرجات

Legal Events

Date Code Title Description
R012 Request for examination validly filed

Effective date: 20120321

R016 Response to examination communication
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee