DD97708A5 - - Google Patents
Info
- Publication number
- DD97708A5 DD97708A5 DD16289872A DD16289872A DD97708A5 DD 97708 A5 DD97708 A5 DD 97708A5 DD 16289872 A DD16289872 A DD 16289872A DD 16289872 A DD16289872 A DD 16289872A DD 97708 A5 DD97708 A5 DD 97708A5
- Authority
- DD
- German Democratic Republic
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)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7117579A FR2137176B1 (xx) | 1971-05-14 | 1971-05-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
DD97708A5 true DD97708A5 (xx) | 1973-05-12 |
Family
ID=9077080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD16289872A DD97708A5 (xx) | 1971-05-14 | 1972-05-11 |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5526276B1 (xx) |
BE (1) | BE783391A (xx) |
CA (1) | CA998137A (xx) |
DD (1) | DD97708A5 (xx) |
DE (1) | DE2223338C2 (xx) |
FR (1) | FR2137176B1 (xx) |
GB (1) | GB1326329A (xx) |
IT (1) | IT955439B (xx) |
NL (1) | NL7206380A (xx) |
Families Citing this family (1)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2044349A (en) * | 1932-02-16 | 1936-06-16 | Webster L Diehl | Hydraulic rotary drill |
NL202592A (xx) * | 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 (xx) * | 1968-04-10 | 1971-11-01 | Daikin Mfg Co Ltd |
-
1971
- 1971-05-14 FR FR7117579A patent/FR2137176B1/fr not_active Expired
-
1972
- 1972-05-01 CA CA141,021A patent/CA998137A/fr not_active Expired
- 1972-05-10 JP JP4627472A patent/JPS5526276B1/ja active Pending
- 1972-05-11 GB GB2216872A patent/GB1326329A/en not_active Expired
- 1972-05-11 DD DD16289872A patent/DD97708A5/xx unknown
- 1972-05-12 BE BE783391A patent/BE783391A/xx not_active IP Right Cessation
- 1972-05-12 NL NL7206380A patent/NL7206380A/xx active Search and Examination
- 1972-05-12 DE DE19722223338 patent/DE2223338C2/de not_active Expired
- 1972-05-12 IT IT2422972A patent/IT955439B/it active
Also Published As
Publication number | Publication date |
---|---|
NL7206380A (xx) | 1972-11-16 |
JPS5526276B1 (xx) | 1980-07-11 |
FR2137176A1 (xx) | 1972-12-29 |
DE2223338C2 (de) | 1982-07-01 |
GB1326329A (en) | 1973-08-08 |
BE783391A (fr) | 1972-09-01 |
AU4229472A (en) | 1973-11-22 |
DE2223338A1 (de) | 1972-11-30 |
FR2137176B1 (xx) | 1974-03-08 |
IT955439B (it) | 1973-09-29 |
CA998137A (fr) | 1976-10-05 |