NL8400858A - Meetinrichting voor een boorgat. - Google Patents

Meetinrichting voor een boorgat.

Info

Publication number
NL8400858A
NL8400858A NL8400858A NL8400858A NL8400858A NL 8400858 A NL8400858 A NL 8400858A NL 8400858 A NL8400858 A NL 8400858A NL 8400858 A NL8400858 A NL 8400858A NL 8400858 A NL8400858 A NL 8400858A
Authority
NL
Netherlands
Prior art keywords
antenna
probe body
longitudinal axis
window
cross
Prior art date
Application number
NL8400858A
Other languages
English (en)
Dutch (nl)
Original Assignee
Prakla Seismos Gmbh
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 Prakla Seismos Gmbh filed Critical Prakla Seismos Gmbh
Publication of NL8400858A publication Critical patent/NL8400858A/nl

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/12Means 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
    • E21B47/13Means 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/0209Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawideband
    • 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/04Adaptation for subterranean or subaqueous use
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • G01S13/885Radar or analogous systems specially adapted for specific applications for ground probing

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geology (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics And Detection Of Objects (AREA)
NL8400858A 1984-03-19 1984-03-16 Meetinrichting voor een boorgat. NL8400858A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8404206A FR2561395B1 (fr) 1984-03-19 1984-03-19 Dispositif de mesure en forage
FR8404206 1984-03-19

Publications (1)

Publication Number Publication Date
NL8400858A true NL8400858A (nl) 1985-10-16

Family

ID=9302171

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8400858A NL8400858A (nl) 1984-03-19 1984-03-16 Meetinrichting voor een boorgat.

Country Status (4)

Country Link
BE (1) BE899226A (de)
CH (1) CH665682A5 (de)
FR (1) FR2561395B1 (de)
NL (1) NL8400858A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6903553B2 (en) * 2002-09-06 2005-06-07 Baker Hughes Incorporated Method and apparatus for a quadrupole transmitter for directionally sensitive induction tool
AU2008348131B2 (en) 2008-01-18 2011-08-04 Halliburton Energy Services, Inc. EM-guided drilling relative to an existing borehole
MY160258A (en) 2008-11-24 2017-02-28 Halliburton Energy Services Inc A high frequency dielectric measurement tool
WO2012002937A1 (en) 2010-06-29 2012-01-05 Halliburton Energy Services, Inc. Method and apparatus for sensing elongated subterraean anomalies
US9562987B2 (en) 2011-04-18 2017-02-07 Halliburton Energy Services, Inc. Multicomponent borehole radar systems and methods
GB2563872B (en) 2017-06-28 2022-06-15 Kirintec Ltd Communications system
CN116771331B (zh) * 2023-08-16 2023-12-08 中国科学院地质与地球物理研究所 过线螺杆钻具用井下过信号监测装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976893C (de) * 1955-02-08 1964-07-16 Telefunken Patent Sende- oder Empfangsanordnung
US3350634A (en) * 1964-12-22 1967-10-31 Mobil Oil Corp Electromagnetic investigation for salt webs interconnecting spaced salt domes
US3440523A (en) * 1965-04-02 1969-04-22 Inst Francais Du Petrole Method and apparatus for electromagnetic determination of the position of boundaries of and discontinuities in a geological formation
DE3308559C2 (de) * 1983-03-08 1985-03-07 Prakla-Seismos Gmbh, 3000 Hannover Bohrloch-Meßeinrichtung

Also Published As

Publication number Publication date
FR2561395A1 (fr) 1985-09-20
CH665682A5 (de) 1988-05-31
FR2561395B1 (fr) 1989-01-20
BE899226A (fr) 1984-07-16

Similar Documents

Publication Publication Date Title
US4670717A (en) Borehole antenna array for determining radar incidence direction
US6559645B2 (en) Detector apparatus and method
EP0178877B1 (de) Gerät zur Aufnahme mittels Mikrowellenreflexion
US2623924A (en) System of airborne conductor measurements
King et al. The slot antenna with coupled dipoles
WO1998040764B1 (en) Locator of electrically conductive objects
Sinclair et al. Measurement of aircraft-antenna patterns using models
NL8400858A (nl) Meetinrichting voor een boorgat.
US4489313A (en) Signal direction determining system and directional loop antenna array therefor
US2282030A (en) System of guiding vehicles
NO129820B (de)
US7482814B2 (en) Electric/magnetic field sensor
Swarup et al. Phase adjustment of large antennas
US2190717A (en) Radio direction finder
Kodis Diffraction measurements at 1.25 centimeters
Smith-Rose et al. The cause and elimination of night errors in radio direction-finding
Ross et al. A phase-comparison method of measuring the direction of arrival of ionospheric radio waves
Bryakin et al. Cable avoidance tool
US4849761A (en) Multi-mode feed system for a monopulse antenna
RU182150U1 (ru) Устройство для распознавания объектов
JP2634259B2 (ja) 高周波信号方向探知装置
US4195299A (en) Loran-C system monitor circuit
US2174014A (en) Direction finder
Shen et al. The dual-measurement procedure for eliminating systematic interference
SU1555688A1 (ru) Способ измерени диаграммы направленности антенны

Legal Events

Date Code Title Description
CNR Transfer of rights (patent application after its laying open for public inspection)

Free format text: PRAKLA-SEISMOS AG.

BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed