NL7206380A - - Google Patents

Info

Publication number
NL7206380A
NL7206380A NL7206380A NL7206380A NL7206380A NL 7206380 A NL7206380 A NL 7206380A NL 7206380 A NL7206380 A NL 7206380A NL 7206380 A NL7206380 A NL 7206380A NL 7206380 A NL7206380 A NL 7206380A
Authority
NL
Netherlands
Application number
NL7206380A
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 filed Critical
Publication of NL7206380A publication Critical patent/NL7206380A/xx

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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/005—Below-ground automatic control systems
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/02—Fluid rotary type drives
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
NL7206380A 1971-05-14 1972-05-12 NL7206380A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7117579A FR2137176B1 (enrdf_load_stackoverflow) 1971-05-14 1971-05-14

Publications (1)

Publication Number Publication Date
NL7206380A true NL7206380A (enrdf_load_stackoverflow) 1972-11-16

Family

ID=9077080

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7206380A NL7206380A (enrdf_load_stackoverflow) 1971-05-14 1972-05-12

Country Status (9)

Country Link
JP (1) JPS5526276B1 (enrdf_load_stackoverflow)
BE (1) BE783391A (enrdf_load_stackoverflow)
CA (1) CA998137A (enrdf_load_stackoverflow)
DD (1) DD97708A5 (enrdf_load_stackoverflow)
DE (1) DE2223338C2 (enrdf_load_stackoverflow)
FR (1) FR2137176B1 (enrdf_load_stackoverflow)
GB (1) GB1326329A (enrdf_load_stackoverflow)
IT (1) IT955439B (enrdf_load_stackoverflow)
NL (1) NL7206380A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109322652B (zh) * 2018-12-10 2023-09-22 中国地质大学（武汉） 一种基于纳米系统的涡轮钻具转速测量短节

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2044349A (en) * 1932-02-16 1936-06-16 Webster L Diehl Hydraulic rotary drill
NL202592A (enrdf_load_stackoverflow) * 1954-12-17
DE1102612B (de) * 1956-09-12 1961-03-16 Salzgitter Maschinen Ag Vorrichtung zum Messen und UEberwachen der Drehzahl des vor Ort angeordneten hydraulischen Antriebsmotors einer Tiefbohrvorrichtung
DE1120399B (de) * 1957-06-10 1961-12-28 Dresser Ind Drehzahlmesseinrichtung fuer Turbinenbohrer
US2985829A (en) * 1957-09-30 1961-05-23 Well Surveys Inc Method and apparatus for determining drill bit speed
US3036460A (en) * 1959-04-10 1962-05-29 Jersey Prod Res Co Fluid meter
DE1142811B (de) * 1960-03-21 1963-01-31 Dresser Ind Tourenzaehler fuer Bohrturbinen
SE340010B (enrdf_load_stackoverflow) * 1968-04-10 1971-11-01 Daikin Mfg Co Ltd

Also Published As

Publication number Publication date
AU4229472A (en) 1973-11-22
FR2137176A1 (enrdf_load_stackoverflow) 1972-12-29
IT955439B (it) 1973-09-29
CA998137A (fr) 1976-10-05
DE2223338A1 (de) 1972-11-30
DE2223338C2 (de) 1982-07-01
DD97708A5 (enrdf_load_stackoverflow) 1973-05-12
GB1326329A (en) 1973-08-08
JPS5526276B1 (enrdf_load_stackoverflow) 1980-07-11
FR2137176B1 (enrdf_load_stackoverflow) 1974-03-08
BE783391A (fr) 1972-09-01

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Legal Events

Date Code Title Description
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BN A decision not to publish the application has become irrevocable