BRPI0407981A - método e sistema de fibra óptica para medir pressão e/ou outros dados fìsicos - Google Patents

método e sistema de fibra óptica para medir pressão e/ou outros dados fìsicos

Info

Publication number
BRPI0407981A
BRPI0407981A BRPI0407981-7A BRPI0407981A BRPI0407981A BR PI0407981 A BRPI0407981 A BR PI0407981A BR PI0407981 A BRPI0407981 A BR PI0407981A BR PI0407981 A BRPI0407981 A BR PI0407981A
Authority
BR
Brazil
Prior art keywords
carrier tube
length
physical data
measuring pressure
optical fiber
Prior art date
Application number
BRPI0407981-7A
Other languages
English (en)
Inventor
Alexander Michael Van Der Spek
Original Assignee
Shell Int Research
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 Shell Int Research filed Critical Shell Int Research
Publication of BRPI0407981A publication Critical patent/BRPI0407981A/pt

Links

Classifications

    • 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
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure
    • E21B47/07—Temperature
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/10—Locating fluid leaks, intrusions or movements
    • E21B47/113—Locating fluid leaks, intrusions or movements using electrical indications; using light radiations
    • 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
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/006—Measuring wall stresses in the borehole

Landscapes

  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
  • Measuring Fluid Pressure (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

"MéTODO E SISTEMA DE FIBRA óPTICA PARA MEDIR PRESSãO E/OU OUTROS DADOS FìSICOS". Um método e sistema são divulgados para medir pressão e/ou outros dados físicos, tais como temperatura, alongamento, torção e/ou dobramento em qualquer ponto ao longo do comprimento de um tubo portador alongado, por meio de uma ou mais fibras ópticas espiraladas que são embutidas na parede do tubo, de tal modo que deformação do tubo portador induz tensão em cada fibra óptica. Em utilização, uma fonte de luz laser pulsada transmite uma seqüência de pulsos de luz de um comprimento de onda selecionado, a partir de uma extremidade a montante de cada fibra para um canal guia de luz espiralado substancialmente uniforme fornecido por dita fibra óptica, e um conjunto de sensor de luz detecta qualquer deslocamento em comprimento de onda dos pulsos de luz retrodispersa a partir de diversas localizações ao longo do comprimento de dito canal guia de luz. Um conjunto de processamento de sinal calcula então um padrão de tensão ao longo do comprimento da fibra e uma diferença de pressão entre o interior e o exterior do tubo em diversas localizações ao longo do comprimento do tubo portador. Preferivelmente, diversas fibras são enroladas em diferentes ângulos de passo em diferentes direções e em diferentes diâmetros na parede do tubo portador, e o conjunto de processamento de sinal calcula dobramento, torção e ambas as deformações, radial e axial do tubo portador, com base em uma comparação dos padrões de tensão induzida em diferentes fibras ópticas.
BRPI0407981-7A 2003-03-05 2004-03-04 método e sistema de fibra óptica para medir pressão e/ou outros dados fìsicos BRPI0407981A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03075647 2003-03-05
PCT/EP2004/050249 WO2004081509A1 (en) 2003-03-05 2004-03-04 Coiled optical fiber assembly for measuring pressure and/or other physical data

Publications (1)

Publication Number Publication Date
BRPI0407981A true BRPI0407981A (pt) 2006-03-07

Family

ID=32981867

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0407981-7A BRPI0407981A (pt) 2003-03-05 2004-03-04 método e sistema de fibra óptica para medir pressão e/ou outros dados fìsicos

Country Status (9)

Country Link
US (1) US7315666B2 (pt)
EP (1) EP1604181B1 (pt)
AT (1) ATE521877T1 (pt)
AU (1) AU2004219914B2 (pt)
BR (1) BRPI0407981A (pt)
CA (1) CA2518033C (pt)
EA (1) EA007244B1 (pt)
NO (1) NO20054564L (pt)
WO (1) WO2004081509A1 (pt)

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Also Published As

Publication number Publication date
EP1604181B1 (en) 2011-08-24
ATE521877T1 (de) 2011-09-15
NO20054564L (no) 2005-10-04
AU2004219914B2 (en) 2007-02-22
AU2004219914A1 (en) 2004-09-23
EA007244B1 (ru) 2006-08-25
US7315666B2 (en) 2008-01-01
EP1604181A1 (en) 2005-12-14
US20060071158A1 (en) 2006-04-06
WO2004081509A1 (en) 2004-09-23
CA2518033C (en) 2012-10-23
CA2518033A1 (en) 2004-09-23
EA200501424A1 (ru) 2006-02-24

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2159 DE 22/05/2012.