Gas Tolerant Water Cut Meter

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The UK’s world class oil and gas industry, comprising both production and the essentialsupport services, is a vital part of the economy and also a key sector of the Government’sfuture industrial strategy. M-Flow Technologies Ltd (M-Flow) epitomises this technology leadwith its unique, expanding, portfolio of sensor developments based Magma Global Ltd mpipe®. The proposed ‘Gas Tolerant Water-Cut Meter’ (GTWCM) Project is one suchdevelopment.Within the industry a fundamental oil well evaluation parameter is the proportion of oil andwater flowing from the well. Due to natural contamination or injected process fluids there isalways a proportion of water flowing with the oil. So-called ‘water-cut’ meters are used tomeasure the ratio of water and oil. In many cases there is also gas mixed with the oil/water.The gas fraction causes problems for the accuracy of existing types of water-cut meters. Thekey aims and objectives of the GTWCM Project are therefore:1) Development of a prototype gas-tolerant water-cut meter for use in oil field applicationsusing both M-Flow’s ‘background’ microwave flow sensor technology and complimentaryadditional sensing techniques;2) Development of interpretational algorithms and models3) Sensor construction to incorporate the multi-parameter sensors4) Development and execution of a flow rig test plan to generate data sets to be calibratedagainst models.The innovation and novel aspects of the proposal include:1) The first use of multi- parameter sensors embedded within m-pipe®;2) Innovative combinations of sensing techniques to measure gas, water and oil fractions;3) Characterisation and modelling of flow regimes to allow calibration of the new sensor.The main benefits will include:1) Provision to industry of a lower-cost, low maintenance, smaller, robust device that canaccurately monitor water cut in three phase flows.2) More accurate economic viability assessment for production wells and custody transfer