CA2548829A1 - Pressure transducer with optical waveguide feedthrough assembly - Google Patents

Pressure transducer with optical waveguide feedthrough assembly Download PDF

Info

Publication number
CA2548829A1
CA2548829A1 CA 2548829 CA2548829A CA2548829A1 CA 2548829 A1 CA2548829 A1 CA 2548829A1 CA 2548829 CA2548829 CA 2548829 CA 2548829 A CA2548829 A CA 2548829A CA 2548829 A1 CA2548829 A1 CA 2548829A1
Authority
CA
Canada
Prior art keywords
assembly
sensor
pressure
housing
plug portion
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.)
Granted
Application number
CA 2548829
Other languages
French (fr)
Other versions
CA2548829C (en
Inventor
James R. Dunphy
John J. Sgambelluri
John Grunbeck
George Talmadge
Robert F. Robinson
James M. Sullivan
Joseph F. Robbins
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.)
Weatherford Technology Holdings LLC
Original Assignee
Weatherford Lamb 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
Priority claimed from US11/172,616 external-priority patent/US8422835B2/en
Priority claimed from US11/172,617 external-priority patent/US7447390B2/en
Application filed by Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Publication of CA2548829A1 publication Critical patent/CA2548829A1/en
Application granted granted Critical
Publication of CA2548829C publication Critical patent/CA2548829C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/245—Housings for sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means
    • G01L11/025—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means using a pressure-sensitive optical fibre
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4248—Feed-through connections for the hermetical passage of fibres through a package wall

Abstract

Optical sensors used in harsh environments require a sealed pressure tight passage of an optical waveguide into an interior of the sensor. In one embodiment, a pressure sensor assembly for determining the pressure of a fluid in a harsh environment includes a sensing element suspended within a fluid filled housing. An optical waveguide that provides communication with the sensing element couples to a feedthrough assembly, which includes a cane-based optical waveguide forming a glass plug sealingly disposed in the housing. The glass plug provides optical communication between the optical waveguide and the sensing element. A pressure transmitting device can transmit the pressure of the fluid to the fluid within the housing. The assembly can maintain the sensing element in a near zero base strain condition and can protect the sensing element from shock/vibration.

Claims (20)

1. A sensor assembly, comprising:
a sensor housing;
an optical sensing element disposed in the sensor housing; and an optical waveguide feedthrough assembly comprising a waveguide element having a plug portion sealingly engaged with the sensor housing, the plug portion having a first end coupled to and in optical communication with an optical transmission cable outside of the housing and a second end coupled to and in optical communication with the sensing element.
2. The sensor assembly of claim 1, further comprising an additional feedthrough assembly with the sensor assembly configured in a pass-through configuration.
3. The sensor assembly of claim 1, wherein the sensing element is suspended in a fluid contained within the sensor housing.
4. The sensor assembly of claim 1, wherein the sensing element is cantilever mounted inside the sensor housing.
5. The sensor assembly of claim 1, wherein the sensing element is mounted to the sensor housing by a ball joint.
6. A pressure sensor assembly for measuring a pressure of a fluid, comprising:
a sensor housing containing the fluid, the sensor housing having a bore extending from outside of the sensor housing to inside of the sensor housing;
an optical based pressure sensing element disposed in the fluid and in optical communication with a plug portion of an optical waveguide element, wherein the plug portion is sealed within the bore and in optical communication with an optical transmission cable disposed outside of the sensor housing; and a pressure transmission device in contact with the fluid for transmitting pressure to the fluid.
7. The assembly of claim 6, wherein the bore includes a tapered seat located along a length thereof for mating with a complementary tapered surface of the plug portion.
8. The assembly of claim 7, further comprising an annular gasket member disposed between the tapered seat and the complementary tapered surface of the plug portion.
9. The assembly of claim 7, further comprising a biasing member for biasing the plug portion against the housing to force the tapered surface of the plug portion to mate with the seat.
10. The assembly of claim 6, wherein the pressure transmission device comprises a bellows.
11. The assembly of claim 6, wherein the pressure transmission device comprises a pressure housing surrounding a bellows, the pressure housing coupled to the sensor housing.
12. The assembly of claim 11, wherein the bellows are coupled to a base of the pressure housing, the base having a mating end secured to a corresponding mating end of the sensor housing with a bore through the base substantially aligned with a channel that extends into the inside of the sensor housing.
13. The assembly of claim 11, wherein the bellows are coupled to a base of the pressure housing, the base having a male end with a conical tapered surface threaded to a female end of the sensor housing with a corresponding conical tapered surface.
14. The assembly of claim 6, further comprising a sealing element disposed between the sensor housing and a surface of the plug portion, wherein the sealing element is an energized seal deformable by fluid pressure in the sensor housing.
15. The assembly of claim 6, further comprising a bi-directional seal sealing element disposed between the sensor housing and the plug portion.
16. The assembly of claim 6, further comprising at least one sensor disposed in the plug portion proximate the tapered surface thereof.
17. The assembly of claim 6, further comprising:
a compression seal element disposed around the plug portion within the bore proximate a conical surface of the bore; and an externally threaded bushing mated with an internal threaded portion of the bore of the sensor housing, wherein the bushing is rotatable with respect to the sensor housing to drive the seal element down the conical surface and pack an annulus between the sensor housing and the plug portion.
18. A pressure sensor assembly for measuring a pressure of a fluid, comprising:
a sensor housing containing the fluid;
an optical based pressure sensing element disposed in the fluid and in optical communication with a plug portion of an optical waveguide element, wherein the plug portion is sealed with respect to the housing and in optical communication with an optical transmission cable disposed outside of the sensor housing;
a pressure transmission device in contact with the fluid for transmitting pressure to the fluid; and at least one sensor disposed in the plug portion for providing diagnostic signals indicating that a seal is established with respect to the plug portion and the sensor housing.
19. The assembly of claim 18, wherein the at least one sensor includes a first and second sensor for providing signals indicative of temperature and pressure at the plug portion.
20. The assembly of claim 18, wherein the at least one sensor includes a first and second sensor, the first sensor located proximate where the seal is established.
CA2548829A 2005-06-30 2006-05-29 Pressure transducer with optical waveguide feedthrough assembly Expired - Fee Related CA2548829C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/172,616 US8422835B2 (en) 2005-06-30 2005-06-30 Optical waveguide feedthrough assembly
US11/172,617 US7447390B2 (en) 2005-06-30 2005-06-30 Pressure transducer with optical waveguide feedthrough assembly
US11/172,617 2005-06-30
US11/172,616 2005-06-30

Publications (2)

Publication Number Publication Date
CA2548829A1 true CA2548829A1 (en) 2006-12-30
CA2548829C CA2548829C (en) 2011-02-15

Family

ID=36694930

Family Applications (2)

Application Number Title Priority Date Filing Date
CA2548829A Expired - Fee Related CA2548829C (en) 2005-06-30 2006-05-29 Pressure transducer with optical waveguide feedthrough assembly
CA2548828A Active CA2548828C (en) 2005-06-30 2006-05-29 Optical waveguide feedthrough assembly

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA2548828A Active CA2548828C (en) 2005-06-30 2006-05-29 Optical waveguide feedthrough assembly

Country Status (2)

Country Link
CA (2) CA2548829C (en)
GB (2) GB2427929B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7751677B2 (en) 2005-06-30 2010-07-06 Weatherford/Lamb, Inc. Optical fiber feedthrough using axial seals for bi-directional sealing
US8422835B2 (en) 2005-06-30 2013-04-16 Weatherford/Lamb, Inc. Optical waveguide feedthrough assembly
GB2480933B (en) * 2006-08-30 2012-02-22 Weatherford Lamb Array temperature sensing method and system
CA2608800C (en) 2006-11-01 2016-01-05 Weatherford/Lamb, Inc. Optical waveguide feedthrough assembly
ITBN20080006A1 (en) * 2008-09-12 2010-03-12 Andrea Brotzu FEEDTHROUGH FOR OPTICAL FIBERS FOR HIGH PRESSURE CONTAINERS.
US9010812B2 (en) * 2012-03-07 2015-04-21 Mettler-Toledo Autochem, Inc. Reaction vessel probe adapter
EP3118583B1 (en) * 2015-07-16 2019-03-27 ENDRESS + HAUSER WETZER GmbH + Co. KG Modular sealing apparatus with failure detection unit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4682846A (en) * 1981-11-19 1987-07-28 The United States Of America As Represented By The Secretary Of The Navy Hermetic high pressure fiber optic bulkhead penetrator
EP0316473A1 (en) * 1987-11-18 1989-05-24 FIBRONIX Faseroptische Sensoren + Systeme GmbH Device for holding an optical fibre
GB2228340B (en) * 1989-02-16 1993-02-10 Stc Plc Hermetic gland for optical fibres
US6009216A (en) * 1997-11-05 1999-12-28 Cidra Corporation Coiled tubing sensor system for delivery of distributed multiplexed sensors
US6931188B2 (en) * 2003-02-21 2005-08-16 Weatherford/Lamb, Inc. Side-hole cane waveguide sensor
US7017417B2 (en) * 2004-02-10 2006-03-28 Weatherford/Lamb, Inc. Pressure sensor assembly suitable for use in harsh environments

Also Published As

Publication number Publication date
CA2548829C (en) 2011-02-15
GB2427929B (en) 2010-03-17
GB2427929A (en) 2007-01-10
GB2427911B (en) 2009-10-28
CA2548828A1 (en) 2006-12-30
GB2427911A (en) 2007-01-10
GB0611021D0 (en) 2006-07-12
CA2548828C (en) 2016-09-13
GB0611022D0 (en) 2006-07-12

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Legal Events

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EEER Examination request
MKLA Lapsed

Effective date: 20210531

MKLA Lapsed

Effective date: 20210531