FR3096752B1 - Instrumented scraper for the inspection of pipeline pipelines. - Google Patents

Instrumented scraper for the inspection of pipeline pipelines. Download PDF

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Publication number
FR3096752B1
FR3096752B1 FR2002610A FR2002610A FR3096752B1 FR 3096752 B1 FR3096752 B1 FR 3096752B1 FR 2002610 A FR2002610 A FR 2002610A FR 2002610 A FR2002610 A FR 2002610A FR 3096752 B1 FR3096752 B1 FR 3096752B1
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France
Prior art keywords
volume
scraper
pressure
pipeline
product
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.)
Active
Application number
FR2002610A
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French (fr)
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FR3096752A1 (en
Inventor
Alain Maire
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Individual
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Individual
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Publication of FR3096752A1 publication Critical patent/FR3096752A1/en
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Publication of FR3096752B1 publication Critical patent/FR3096752B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F16L55/40—Constructional aspects of the body
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/005—Investigating fluid-tightness of structures using pigs or moles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/2823—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pigs or moles traveling in the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/30—Detecting leaks

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

TITRE. Racleur instrumenté pour l’inspection de canalisations de pipelines. L'invention concerne un racleur instrumenté dans lequel est installé un dispositif de mesures permettant de détecter et de localiser une fuite, ou un soutirage clandestin de produit (actif ou à l'arrêt) dans un pipeline. Ce dispositif est agencé pour ménager dans le racleur, une chambre de mesure étanche appelée volume référent, délimité d’une part, aux extrémités du racleur, par deux coupelles d’étanchéité et, d’autre part, par la paroi interne de la canalisation, et le corps central du racleur dans lequel la pression est mesurée et comparée à la pression de référence correspondant à la pression à laquelle circule le fluide à l’intérieur de la canalisation ; une variation négative de pression dans ce volume référent signe la présence d’une perte de produit par fuite ou soutirage clandestin. D’autres variations de pression, enregistrées et corrélées aux documents de profil de la ligne (carnet de soudures et autres), permettent en outre sa localisation rapide. En outre, une pompe volumétrique, entrainée et motorisée par l'avancement du racleur injecte et retire à une cadence étudiée un volume calibré de produit pris dans le tube induisant une hausse et une baisse de pression dans le volume référent. Cette opération consiste à suivre la mesure de la compressibilité du volume référent. Lorsque le racleur arrive au niveau d'un piquage clandestin non actif, le delta de pression sera plus faible. En effet le volume référent a, au droit du piquage, augmenté de volume par l'apport du volume pirate et de ce fait augmenté la compressibilité du volume référent. Ce dispositif permet de répondre aux problématiques de vol de produit en ligne auxquelles les exploitants de pipeline sont aujourd’hui confrontés.TITLE. Instrumented scraper for the inspection of pipeline pipelines. The invention relates to an instrumented pig in which is installed a measuring device making it possible to detect and locate a leak, or an illegal withdrawal of product (active or stopped) in a pipeline. This device is designed to provide in the scraper, a sealed measuring chamber called the reference volume, delimited on the one hand, at the ends of the scraper, by two sealing cups and, on the other hand, by the internal wall of the pipe. , and the central body of the scraper in which the pressure is measured and compared to the reference pressure corresponding to the pressure at which the fluid circulates inside the pipe; a negative pressure variation in this reference volume indicates the presence of a loss of product by leakage or clandestine withdrawal. Other pressure variations, recorded and correlated with the line profile documents (weld book and others), also allow its rapid location. In addition, a positive displacement pump, driven and motorized by the advancement of the scraper, injects and withdraws at a studied rate a calibrated volume of product taken from the tube, inducing an increase and a decrease in pressure in the reference volume. This operation consists in following the measure of the compressibility of the referent volume. When the scraper arrives at a non-active clandestine nozzle, the pressure delta will be lower. In fact, the referent volume has, in line with the stitching, increased in volume by the contribution of the pirate volume and thereby increased the compressibility of the referent volume. This device helps address the online product theft issues that pipeline operators face today.

FR2002610A 2019-05-27 2020-03-17 Instrumented scraper for the inspection of pipeline pipelines. Active FR3096752B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1905600 2019-05-27
FR1905600A FR3096751B1 (en) 2019-05-27 2019-05-27 Instrumented scraper for the inspection of pipeline pipelines.

Publications (2)

Publication Number Publication Date
FR3096752A1 FR3096752A1 (en) 2020-12-04
FR3096752B1 true FR3096752B1 (en) 2021-07-16

Family

ID=67660337

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1905600A Active FR3096751B1 (en) 2019-05-27 2019-05-27 Instrumented scraper for the inspection of pipeline pipelines.
FR2002610A Active FR3096752B1 (en) 2019-05-27 2020-03-17 Instrumented scraper for the inspection of pipeline pipelines.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR1905600A Active FR3096751B1 (en) 2019-05-27 2019-05-27 Instrumented scraper for the inspection of pipeline pipelines.

Country Status (1)

Country Link
FR (2) FR3096751B1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951362A (en) * 1956-06-28 1960-09-06 Gulf Research Development Co Pipeline leak surveying
FR2122661A5 (en) * 1971-01-19 1972-09-01 Elf Union
US3889522A (en) * 1972-08-21 1975-06-17 Sanders Associates Inc Pipeline condition analyzer
US3974680A (en) * 1975-05-27 1976-08-17 Inspection Technology Development, Inc. Pipeline leak detector
FR2439990A1 (en) * 1978-10-25 1980-05-23 Gaz De France Detecting leakage from gas pipeline - requires hollow cylindrical element to isolate section while allowing continuing gas flow
GB2327759B (en) * 1997-07-22 2001-09-19 British Gas Plc Pipeline leak detector system
GB9719101D0 (en) * 1997-09-10 1997-11-12 British Gas Plc Pipe leak detection

Also Published As

Publication number Publication date
FR3096752A1 (en) 2020-12-04
FR3096751A1 (en) 2020-12-04
FR3096751B1 (en) 2021-09-17

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