AU1865097A - Spring loaded borehole instrument - Google Patents

Spring loaded borehole instrument

Info

Publication number
AU1865097A
AU1865097A AU18650/97A AU1865097A AU1865097A AU 1865097 A AU1865097 A AU 1865097A AU 18650/97 A AU18650/97 A AU 18650/97A AU 1865097 A AU1865097 A AU 1865097A AU 1865097 A AU1865097 A AU 1865097A
Authority
AU
Australia
Prior art keywords
spring loaded
borehole instrument
borehole
instrument
loaded
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
AU18650/97A
Other languages
English (en)
Inventor
Hubert Josef Otte
John E. Paulson
Lennart Roosman
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of AU1865097A publication Critical patent/AU1865097A/en
Abandoned 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
    • E21B47/02—Determining slope or direction
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/22—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
    • G01D5/2291—Linear or rotary variable differential transformers (LVDTs/RVDTs) having a single primary coil and two secondary coils

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geophysics (AREA)
  • Power Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics And Detection Of Objects (AREA)
AU18650/97A 1997-03-05 1997-03-05 Spring loaded borehole instrument Abandoned AU1865097A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA1997/000160 WO1998039551A1 (fr) 1997-03-05 1997-03-05 Instrument a ressorts pour trous de forage

Publications (1)

Publication Number Publication Date
AU1865097A true AU1865097A (en) 1998-09-22

Family

ID=4173202

Family Applications (1)

Application Number Title Priority Date Filing Date
AU18650/97A Abandoned AU1865097A (en) 1997-03-05 1997-03-05 Spring loaded borehole instrument

Country Status (2)

Country Link
AU (1) AU1865097A (fr)
WO (1) WO1998039551A1 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX160919A (es) * 1985-12-19 1990-06-19 Dickinson Ben Wade O Iii Aparato perforador de pozos en la tierra y metodo para formarlo

Also Published As

Publication number Publication date
WO1998039551A1 (fr) 1998-09-11

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