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1. EP1688585 - Apparatus and method for protecting devices, especially fibre optic devices, in hostile environments

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Office
European Patent Office
Application Number 06009991
Application Date 17.12.1999
Publication Number 1688585
Publication Date 09.08.2006
Publication Kind A3
IPC
G01L 19/06
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
19Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
06Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
E21B 47/01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47Survey of boreholes or wells
01Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
E21B 47/06
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47Survey of boreholes or wells
06Measuring temperature or pressure
E21B 47/12
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47Survey of boreholes or wells
12Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
G01D 5/28
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
26using optical means, i.e. using infra-red, visible or ultra-violet light
28with deflection of beams of light, e.g. for direct optical indication
G01K 11/32
GPHYSICS
01MEASURING; TESTING
KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
11Measuring temperature based on physical or chemical changes not covered by group G01K3/, G01K5/, G01K7/, or G01K9/202
32using changes in transmission, scattering or fluorescence in optical fibres
CPC
E21B 47/06
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
06Measuring temperature or pressure
G01D 5/28
GPHYSICS
01MEASURING; TESTING
DMEASURING 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
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
26characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light
28with deflection of beams of light, e.g. for direct optical indication
G01K 11/3206
GPHYSICS
01MEASURING; TESTING
KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
11Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
32using changes in transmittance, scattering or luminescence in optical fibres
3206at discrete locations in the fibre, e.g. using Bragg scattering
G01L 11/025
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
11Measuring 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
02by optical means
025using a pressure-sensitive optical fibre
G02B 6/4427
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
4401Optical cables
4415Cables for special applications
4427Pressure resistant cables, e.g. undersea cables
G01L 19/0627
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
19Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
06Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
0627Protection against aggressive medium in general
Applicants CHEVRON USA INC
SENSOR DYNAMICS LTD
UNIV SOUTHAMPTON
Inventors CRAWLEY C M
KLUTH E L E
RUTT H N
CLOWES J R
VARNHAM M P
Designated States
Priority Data 99966447 17.12.1999 EP
9827735 17.12.1998 GB
9900793 15.01.1999 GB
Title
(DE) Apparat und Verfahren zum Schutz von Vorrichtungen, insbesondere faseroptische Vorrichtungen in aggressiven Umgebungen
(EN) Apparatus and method for protecting devices, especially fibre optic devices, in hostile environments
(FR) Appareil et procédé de protection de dispositifs, en particulier des dispositifs à fibres optiques dans des milieux agressifs
front page image
Abstract
(EN) Apparatus for communicating pressure comprising a first port, a second port and a liquid metal, in which the liquid metal provides an interface between the first port and the second port. Apparatus for measuring pressure comprising a first port, a liquid metal and a pressure sensor in which the liquid metal transfers pressure from the first port to the pressure sensor. Apparatus for measuring pressure at a measurement location comprising a first chamber, a pressure sensor, a capillary and a liquid metal, in which the pressure sensor is contained in the first chamber, which is connected to the location where pressure is to be measured by the capillary and the liquid metal.
(FR) L'invention concerne la protection de dispositifs optiques, tels qu'un capteur à fibres optiques monté en série avec un câble, d'un milieu hostile tels que ceux rencontrés lors de prises de mesures dans des puits de pétrole et de gaz. Un liquide peut protéger le dispositif optique. Il est possible de protéger un capteur à fibres optiques en emballant celui-ci dans un capillaire contenant ledit liquide. Ce liquide peut être un métal liquide, du gel, de l'encre, de la graisse, ou de l'huile. Ledit métal liquide peut être du gallium ou de l'indium, ou un alliage contenant de l'indium et/ou du gallium. La graisse peut contenir du lithium, du molybdène, ou des produits synthétiques, ou elle peut être de la graisse synthétique. Ledit liquide peut contenir d'autres composés tels qu'un épurateur ou un getter de molécules et/ou d'ions.
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NO20006311This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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