NO942573L - Stabilisert tidskrets for brönnloggingsinstrument - Google Patents

Stabilisert tidskrets for brönnloggingsinstrument

Info

Publication number
NO942573L
NO942573L NO942573A NO942573A NO942573L NO 942573 L NO942573 L NO 942573L NO 942573 A NO942573 A NO 942573A NO 942573 A NO942573 A NO 942573A NO 942573 L NO942573 L NO 942573L
Authority
NO
Norway
Prior art keywords
temperature
cavity
well logging
circuit
located inside
Prior art date
Application number
NO942573A
Other languages
English (en)
Other versions
NO942573D0 (no
Inventor
Kenneth L Jones
Original Assignee
Western Atlas Int 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 Western Atlas Int Inc filed Critical Western Atlas Int Inc
Publication of NO942573L publication Critical patent/NO942573L/no
Publication of NO942573D0 publication Critical patent/NO942573D0/no

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/04—Constructional details for maintaining temperature constant
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Control Of Temperature (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

For å oppnå et stabilt, nøyaktig tidsreferansesignal for styring og drift av et brønnloggingsinstrument (12) be- nyttes et temperaturisolert hus (14) som avgrenser et innvendig temperaturstyrt hulrom (16) for å oppta og beskytte en elektronisk tidsreferansekrets (10). En elektronisk tidskrets (10) slik som en krystall-oscillator, er plassert inne i hulrommet (16) og er elektronisk sett sta- bil innenfor et forutbestemt temperaturom- råde som eventuelt er noe høyere enn den høyeste omgivelsestemperatur som råder ned i borehullet. Et varme-element (18), en styringskrets (22) og en temperaturføler (24) er anbragt inne i hulrommet (16) for å holde tidskretsen (10) på en temperatur som ligger innenfor det forutbestemte temperaturområde. Et automatisk energisert kjøle-element (20) kan eventuelt også være plassert inne i hulrommet (16) for ytter- ligere temperaturstyring.
NO942573A 1992-11-13 1994-07-08 Stabilisert tidskrets for brönnloggingsinstrument NO942573D0 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97588292A 1992-11-13 1992-11-13
PCT/US1993/010932 WO1994011763A1 (en) 1992-11-13 1993-11-11 High temperature stabilized time base

Publications (2)

Publication Number Publication Date
NO942573L true NO942573L (no) 1994-07-08
NO942573D0 NO942573D0 (no) 1994-07-08

Family

ID=25523531

Family Applications (1)

Application Number Title Priority Date Filing Date
NO942573A NO942573D0 (no) 1992-11-13 1994-07-08 Stabilisert tidskrets for brönnloggingsinstrument

Country Status (4)

Country Link
EP (1) EP0635137A4 (no)
CA (1) CA2127809A1 (no)
NO (1) NO942573D0 (no)
WO (1) WO1994011763A1 (no)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0943226A4 (en) * 1996-12-06 2000-03-15 Corning Inc HOUSING FOR TEMPERATURE-SENSITIVE PLANAR OPTICAL COMPONENTS
US5994679A (en) * 1997-12-19 1999-11-30 Lucent Technologies Inc. Thermal housing for optical circuits
US6166608A (en) * 1998-10-21 2000-12-26 Symmetricom, Inc. Thermo-electric cooled oven controlled crystal oscillator
CA2416551A1 (en) * 2000-06-23 2002-01-03 Kaiser Electroprecision Sensor capable of operating outside of ambient operating temperature limits
US6501340B1 (en) * 2002-02-11 2002-12-31 Acr Electronics, Inc. Oscillator with frequency stabilizing circuit and method of constructing same
US7717167B2 (en) 2004-12-03 2010-05-18 Halliburton Energy Services, Inc. Switchable power allocation in a downhole operation
US8020621B2 (en) * 2007-05-08 2011-09-20 Baker Hughes Incorporated Downhole applications of composites having aligned nanotubes for heat transport
US8248173B2 (en) * 2010-04-27 2012-08-21 The Charles Stark Draper Laboratory, Inc. Devices, systems, and methods for controlling the temperature of resonant elements
GB2546671B (en) 2014-12-05 2020-10-14 Halliburton Energy Services Inc Downhole clock calibration apparatus, systems, and methods
CN110597317A (zh) * 2019-09-24 2019-12-20 国网江苏省电力有限公司电力科学研究院 一种用于标准时钟装置的温度柔性可调恒温槽
FR3107626B1 (fr) 2020-02-21 2022-03-11 St Microelectronics Grenoble 2 Compensation de dérive
FR3107628B1 (fr) * 2020-02-21 2022-12-02 St Microelectronics Grenoble 2 Compensation de dérive

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2167630A (en) * 1936-04-02 1939-08-01 Sperry Sun Well Surveying Co Electrical prospecting method and apparatus
US2709753A (en) * 1941-10-01 1955-05-31 Schlumberger Well Surv Corp Temperature compensated bore hole radioactivity apparatus
US2433554A (en) * 1942-10-27 1947-12-30 Texas Co Well logging apparatus
US2507351A (en) * 1945-11-23 1950-05-09 Well Surveys Inc Transmitting of information in drill holes
US2760078A (en) * 1952-05-27 1956-08-21 Well Surveys Inc Conduction counter for radioactivity well logging
US2942461A (en) * 1955-12-16 1960-06-28 Texaco Inc Well bore hole logging
US3038074A (en) * 1959-11-06 1962-06-05 Serge A Scherbatskoy Temperature-regulated well-logging apparatus
US3167653A (en) * 1962-11-29 1965-01-26 Jersey Prod Res Co Cooling radiation detectors in well logging apparatus
USB403027I5 (no) * 1963-06-13 1900-01-01
US3925749A (en) * 1973-09-24 1975-12-09 Western Co Of North America Asynthronous pulse telemetry system and method
FR2418953A1 (fr) * 1978-03-03 1979-09-28 Cepe Dispositif de regulation thermique d'une enceinte, notamment pour cristal piezoelectrique oscillant, et enceinte comportant un tel dispositif
US4230945A (en) * 1978-04-24 1980-10-28 Meir Vladimir A Device for detecting ionizing radiation
US4157466A (en) * 1978-07-31 1979-06-05 Herrin James R Crystal oven for maintaining crystals at a predetermined temperature
US4517459A (en) * 1981-11-02 1985-05-14 Texaco Inc. Temperature stabilization system for a radiation detector in a well logging tool
EP0310863B1 (de) * 1987-09-28 1992-06-10 Siemens Aktiengesellschaft Verfahren zur Temperaturkompensation eines spannungsgesteuerten Quarzoszillators in einem Phasenregelkreis
US4967166A (en) * 1989-12-07 1990-10-30 Schlumberger Technology Corporation Crystal oscillator and method for mounting the same

Also Published As

Publication number Publication date
EP0635137A4 (en) 1995-04-19
WO1994011763A1 (en) 1994-05-26
NO942573D0 (no) 1994-07-08
CA2127809A1 (en) 1994-05-26
EP0635137A1 (en) 1995-01-25

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