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1. WO2000042391 - IMPROVED FLOW MONITORING APPARATUS

Publication Number WO/2000/042391
Publication Date 20.07.2000
International Application No. PCT/GB2000/000069
International Filing Date 13.01.2000
Chapter 2 Demand Filed 14.08.2000
IPC
G01F 1/44 2006.01
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
1Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
05by using mechanical effects
34by measuring pressure or differential pressure
36the pressure or differential pressure being created by the use of flow constriction
40Details of construction of the flow constriction devices
44Venturi tubes
CPC
G01F 1/44
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
1Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
05by using mechanical effects
34by measuring pressure or differential pressure
36the pressure or differential pressure being created by the use of flow constriction
40Details or construction of the flow constriction devices
44Venturi tubes
Applicants
  • EXPRO NORTH SEA LIMITED [GB/GB]; Kirkhill Place Kirkhill Industrial Estate Dyce Aberdeen AB21 0GU, GB (AllExceptUS)
  • RICHARDS, Andrew [GB/GB]; GB (UsOnly)
  • LESTRANGE, Brett [AU/GB]; GB (UsOnly)
Inventors
  • RICHARDS, Andrew; GB
  • LESTRANGE, Brett; GB
Agents
  • McCALLUM, William, Potter ; Cruikshank & Fairweather 19 Royal Exchange Square Glasgow G1 3AE, GB
Priority Data
9900569.613.01.1999GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED FLOW MONITORING APPARATUS
(FR) APPAREIL PERFECTIONNE DE SURVEILLANCE DE DEBIT
Abstract
(EN)
A flowmeter is described which has a retrievable housing conduit which is locatable within a conduit or pipe and which seals against the pipe so that fluid only flows through the housing conduit, and a flow restriction is created within the housing conduit to create a Venturi when in use. At least two spaced pressure measuring stations are provided along the housing conduit, one of the stations located at an unrestricted flow location, the other at a restricted flow location, whereby pressures measured at these stations can be used to calculate fluid flow rates. Embodiments of the invention are described.
(FR)
L'invention concerne un débitmètre possédant un tube formant logement, récupérable, que l'on peut placer dans une conduite ou dans un tuyau, et qui est doté de moyens de scellement contre le tuyau, de façon que le fluide ne s'écoule qu'à travers le tube, une limitation d'écoulement étant créée dans ce tube, afin d'y créer un effet Venturi, lors de l'utilisation de l'appareil. On a monté au moins deux postes de mesure de pression, espacés, le long du tube, l'un de ces postes étant situé au niveau d'un emplacement d'écoulement non limité, l'autre au niveau d'un emplacement d'écoulement limité, et on mesure les pressions au niveau de ces postes, afin de calculer les débits d'écoulement du fluide. L'invention concerne des modes de réalisation de cet appareil.
Also published as
NO20013314
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