WO2010144113A3 - Dts based fiber optic pressure transducer - Google Patents

Dts based fiber optic pressure transducer Download PDF

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Publication number
WO2010144113A3
WO2010144113A3 PCT/US2010/001541 US2010001541W WO2010144113A3 WO 2010144113 A3 WO2010144113 A3 WO 2010144113A3 US 2010001541 W US2010001541 W US 2010001541W WO 2010144113 A3 WO2010144113 A3 WO 2010144113A3
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
pressure
well
fiber optic
pressure transducer
Prior art date
Application number
PCT/US2010/001541
Other languages
French (fr)
Other versions
WO2010144113A2 (en
Inventor
Brian Park
Kent Kalar
Kari-Mikko Jaaskelainen
Original Assignee
SensorTran, 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 SensorTran, Inc filed Critical SensorTran, Inc
Publication of WO2010144113A2 publication Critical patent/WO2010144113A2/en
Publication of WO2010144113A3 publication Critical patent/WO2010144113A3/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0026—Transmitting or indicating the displacement of flexible, deformable tubes by electric, electromechanical, magnetic or electromagnetic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

This disclosure describes a fiber optic based pressure transducer that detects position of a heated end of a Bourdon tube under pressure. This movement can be calibrated to provide an accurate pressure reading. The temperature change in the fiber due to the heated end of the Bourdon tube is detected using DTS (Distributed Temperature Sensing) techniques, which additionally measures the temperature along the entire length of the well. Thus one surface instrument can provide both an accurate temperature profile of a deep well and its pressure at critical locations. This is of value for the testing and production stages of the well. No electrical cables are required, and all signals are conducted through a single optical fiber that is also the detection fiber. Multiple pressure sensors can be installed on the fiber and their pressures determined.
PCT/US2010/001541 2009-06-08 2010-05-26 Dts based fiber optic pressure transducer WO2010144113A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26807709P 2009-06-08 2009-06-08
US61/268,077 2009-06-08

Publications (2)

Publication Number Publication Date
WO2010144113A2 WO2010144113A2 (en) 2010-12-16
WO2010144113A3 true WO2010144113A3 (en) 2011-03-31

Family

ID=43309400

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/001541 WO2010144113A2 (en) 2009-06-08 2010-05-26 Dts based fiber optic pressure transducer

Country Status (1)

Country Link
WO (1) WO2010144113A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9683435B2 (en) 2014-03-04 2017-06-20 General Electric Company Sensor deployment system for a wellbore and methods of assembling the same
CN112697339B (en) * 2020-11-26 2022-05-06 桂林电子科技大学 High-strength high-temperature-resistant quick-response optical fiber air pressure sensing probe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987821A (en) * 1975-05-08 1976-10-26 Ametek, Inc. Gas-filled thermometer
US5929330A (en) * 1997-11-14 1999-07-27 Ford; Robert P. Visual tire cap pressure indicator
US20050268722A1 (en) * 2004-06-07 2005-12-08 Yu-Chong Tai Implantable mechanical pressure sensor and method of manufacturing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987821A (en) * 1975-05-08 1976-10-26 Ametek, Inc. Gas-filled thermometer
US5929330A (en) * 1997-11-14 1999-07-27 Ford; Robert P. Visual tire cap pressure indicator
US20050268722A1 (en) * 2004-06-07 2005-12-08 Yu-Chong Tai Implantable mechanical pressure sensor and method of manufacturing the same

Also Published As

Publication number Publication date
WO2010144113A2 (en) 2010-12-16

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