AU7155181A - An acoustic system to guide a coal seam auger - Google Patents

An acoustic system to guide a coal seam auger

Info

Publication number
AU7155181A
AU7155181A AU71551/81A AU7155181A AU7155181A AU 7155181 A AU7155181 A AU 7155181A AU 71551/81 A AU71551/81 A AU 71551/81A AU 7155181 A AU7155181 A AU 7155181A AU 7155181 A AU7155181 A AU 7155181A
Authority
AU
Australia
Prior art keywords
auger
guide
coal seam
acoustic system
acoustic
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.)
Abandoned
Application number
AU71551/81A
Inventor
J B Coon
J C Fowler
K H Waters
C E Payton
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.)
ConocoPhillips Co
Original Assignee
Conoco 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 Conoco Inc filed Critical Conoco Inc
Publication of AU7155181A publication Critical patent/AU7155181A/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S15/36—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal
    • 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
    • E21B47/02—Determining slope or direction
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
    • E21B47/0224—Determining slope or direction of the borehole, e.g. using geomagnetism using seismic or acoustic means
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
AU71551/81A 1980-11-24 1980-11-24 An acoustic system to guide a coal seam auger Abandoned AU7155181A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1980/001565 WO1982001908A1 (en) 1980-11-24 1980-11-24 An acoustic system to guide a coal seam auger

Publications (1)

Publication Number Publication Date
AU7155181A true AU7155181A (en) 1982-06-17

Family

ID=22154657

Family Applications (1)

Application Number Title Priority Date Filing Date
AU71551/81A Abandoned AU7155181A (en) 1980-11-24 1980-11-24 An acoustic system to guide a coal seam auger

Country Status (3)

Country Link
EP (1) EP0064978A1 (en)
AU (1) AU7155181A (en)
WO (1) WO1982001908A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578807A (en) * 1966-07-11 1971-05-18 Barrett Arthur L Method of steering
SU443973A1 (en) * 1971-11-23 1974-09-25 Университет Дружбы Народов им. Патриса Лумумбы Device for providing directional movement of the excavation unit in the plane of the reservoir with a chamber-and-pillar method of development
US3853185A (en) * 1973-11-30 1974-12-10 Continental Oil Co Guidance system for a horizontal drilling apparatus
US3907045A (en) * 1973-11-30 1975-09-23 Continental Oil Co Guidance system for a horizontal drilling apparatus
US4184562A (en) * 1977-11-14 1980-01-22 Standard Oil Company (Indiana) Multi-directional assemblies for sonic logging

Also Published As

Publication number Publication date
EP0064978A1 (en) 1982-11-24
WO1982001908A1 (en) 1982-06-10

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