ROXAR FLOW MEASUREMENT AS Patent applications |
Patent application number | Title | Published |
20150346117 | CONDUCTIVITY MEASUREMENTS - The present invention relates to a system for measuring conductivity in a multiphase fluid flow comprising a fraction of water, the system comprising a measuring section including means for emitting electromagnetic signals into a pipe containing said flow within at least one chosen frequency range and means for detecting resonant frequencies within said range. The measuring section comprising features for providing at least two resonanct frequencies within said at least one frequency range, the system also comprising means for based on at least a first resonant frequency and a first Q-factor related to the corresponding resonance peak as well as the Q-factor of a second resonance peak, calculating the conductivity of the water in said flow. | 12-03-2015 |
20140352401 | ORIFICE SYSTEM - The invention relates to an orifice system, especially for flow measurements in pipes, comprising a hinged member being adapted to be moved between two positions, the first position essentially covering the pipe cross section, and a second position into a recess outside the pipe cross section, wherein the hinged member has an opening thus in the first position allowing the fluid flow only through the opening. The invention also relates to a method for using the orifice system for calibrating pressure sensors mounted upstream and downstream of the orifice. | 12-04-2014 |
20140130592 | DOWNHOLE GAUGE ASSEMBLY - Downhole gauge ( | 05-15-2014 |
20130320664 | CONNECTOR - The invention provides a connector, comprising a male member and a female member, one of said members is stationary whilst the other member is retrievable. The connector is distinctive in that the interface between the male and female members comprises a facing surface of a ceramic sleeve, ceramic insert or ceramic member, such that the male and female members are galvanically isolated. | 12-05-2013 |
20120087467 | X-RAY BASED DENSITOMETER FOR MULTIPHASE FLOW MEASUREMENT - Multiphase flow measuring unit for performing X-ray density measurements on a fluid flow, the unit comprising an X-ray source generating an X-ray beam within a chosen spectral range and a first detector aimed at the beam for detecting radiation scattered by or transmitted through the flow, the spectral range being a narrow, essentially monochromatic range. | 04-12-2012 |
20120031204 | DEVICE AND METHOD OF TAKING FLUID SAMPLES OFFSHORE - A subsea pipeline ( | 02-09-2012 |
20110001498 | METHOD AND DEVICE FOR MONITORING A ZONE OF METAL - Method and device for monitoring a zone of a metal structure in terms of its electrical resistance in order to detect possible defects in the structure, by periodically passing current through the zone in different directions while measuring and recording voltage drops in a number of selected unit areas (a | 01-06-2011 |
20100219850 | METHOD AND PROBE FOR THE MEASUREMENT OF PARTICLES IN A FLUID - Method for the measurement of particles in a fluid stream by measurement of the electric resistance of a measuring element as a function of the erosion of the measuring element caused by the particles. It is advantageous to use an alloy with a—in comparison with a temperature coefficient of the resistivity (specific electric resistance) of about 1.9*10̂−3 K̂−1 (Monel® 400 or a similar alloy)—considerably lower temperature coefficient of the resistivity. It also comprises a probe ( | 09-02-2010 |
20100206420 | FLOW METER FOR MULTIPHASE FLUIDS - There is described a flow pipe ( | 08-19-2010 |
20100145636 | FLOW MEASUREMENTS - This invention relates to a measuring instrument for measurement of a flow ( | 06-10-2010 |
20100132953 | BARRIER FOR INSTRUMENTATION PIPING - A well head barrier assembly ( | 06-03-2010 |
20100117854 | POWER SUPPLY SYSTEM FOR DOWNHOLE NETWORK - An electric system especially for measurement and control in an oil/gas well using transmission of electric signals and supply of electric power. The system is provided with a current loop ( | 05-13-2010 |