AU8287591A - Angle sensor for a steerable boring tool - Google Patents

Angle sensor for a steerable boring tool

Info

Publication number
AU8287591A
AU8287591A AU82875/91A AU8287591A AU8287591A AU 8287591 A AU8287591 A AU 8287591A AU 82875/91 A AU82875/91 A AU 82875/91A AU 8287591 A AU8287591 A AU 8287591A AU 8287591 A AU8287591 A AU 8287591A
Authority
AU
Australia
Prior art keywords
angle sensor
boring tool
steerable boring
steerable
tool
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
AU82875/91A
Inventor
Alan J Rider
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.)
Charles Machine Works Inc
Original Assignee
Charles Machine Works 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
Priority claimed from US07/539,551 external-priority patent/US5133417A/en
Application filed by Charles Machine Works Inc filed Critical Charles Machine Works Inc
Publication of AU8287591A publication Critical patent/AU8287591A/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/02—Details
    • G01C9/06—Electric or photoelectric indication or reading means
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B47/0228—Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor
    • E21B47/0232—Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor at least one of the energy sources or one of the detectors being located on or above the ground surface
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
    • G01C9/20—Measuring inclination, e.g. by clinometers, by levels by using liquids the indication being based on the inclination of the surface of a liquid relative to its container
AU82875/91A 1990-06-18 1991-06-18 Angle sensor for a steerable boring tool Abandoned AU8287591A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US53969990A 1990-06-18 1990-06-18
US07/539,551 US5133417A (en) 1990-06-18 1990-06-18 Angle sensor using thermal conductivity for a steerable boring tool
US539699 1990-06-18
US539551 1990-06-18

Publications (1)

Publication Number Publication Date
AU8287591A true AU8287591A (en) 1992-01-07

Family

ID=27066128

Family Applications (1)

Application Number Title Priority Date Filing Date
AU82875/91A Abandoned AU8287591A (en) 1990-06-18 1991-06-18 Angle sensor for a steerable boring tool

Country Status (2)

Country Link
AU (1) AU8287591A (en)
WO (1) WO1991019954A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19939094C1 (en) * 1999-08-18 2001-09-27 Infineon Technologies Ag Inclinometer and use of a semiconductor sensor as an inclinometer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58501639A (en) * 1981-10-02 1983-09-29 ジオトロニクス・アクチボラグ electronic level
EP0117226A3 (en) * 1983-01-28 1985-10-02 Max Engler Apparatus for measuring deviations from the vertical and its use
US4644662A (en) * 1985-01-31 1987-02-24 Sperry Corporation Capacitive gravity sensor
SU1434253A1 (en) * 1985-08-14 1988-10-30 Южный Филиал Научно-Производственного Объединения По Тракторостроению Device for measuring angle of slope
US4672753A (en) * 1986-05-19 1987-06-16 Gas Research Institute Rotation sensor
US4779353A (en) * 1987-03-26 1988-10-25 Schlumberger Technology Corporation Tool for measuring inclination and rotation
JPS63252991A (en) * 1987-04-09 1988-10-20 Mitsubishi Metal Corp Cz single crystal having holding part for preventing falling down
IT1218980B (en) * 1988-01-27 1990-04-24 Marelli Autronica ELECTRIC INCLINATION SENSOR AND DETECTION CIRCUIT FOR SUCH SENSOR

Also Published As

Publication number Publication date
WO1991019954A1 (en) 1991-12-26

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