Objetivo To develop and field prove a subsea three phase meter to enhance the economics of marginal field developments. The subsea three phase meter is designed to meter individual well flows subsea remote from a host facility to nominally +/-5% for production allocation and reservoir management.The meter will perform the function of a subsea test separator and allow all production to be combined into a single bulk production pipeline. Once proven, operating companies will be able to confidently employ the meter in the subsea field developments to significantly reduce capital costs.Liquid/Gas separation in the inclined separator system was found to be highly sensitive to production chemicals in a way which was difficult to predict. The side stream sampling arrangement was also found to extract water preferentially giving a bias to the water-cut measurement. The amount of bias was also sensitive to production chemicals and their effect on water/oil separator.The project involves combining basic research in multiphase metering conducted by Texaco Inc. Exploration and Production Technology Division with offshore and subsea expertise from Texaco Britain Limited. Texaco Inc. originated the metering concepts. Texaco Britain Limited and Jiskoot Autocontrol Limited have undertaken development of these concepts into prototype metering systems and proving them in service on hydrocarbons.In Stage I, a prototype of the subsea three phase meter was built and tested topsides on the Tartan "A" Platform. It was fitted to lines carrying well fluids in series with the existing platform test separator.Its performance was evaluated using the test separator for a reference measurement.Texaco Inc. has continued to perform related research into multiphase metering. Texaco Britain Limited and Jiskoot Autocontrol Limited have been informed of their work. It has been possible to use some of their results to modify and optimise the Stage I prototype designs.At the conclusion of Stage I, which included extensive modifications and sulphur testing, the subsea three phase meter was deemed not to have personnel well enough to warrant proceeding to Stage II and the project which was to be subsea trials. A report has been prepared based on these tests.Stage II of the project was to involve fitting the subsea three phase meter to the Highlander Subsea Template where individual well flows could be directed through it. A dedicated test production system exists at Highlander which would have taken fluids from the meter to a dedicated test separator on the Tartan "A" Platform.The performance of the meter was to be evaluated against this test separator. Programa(s) ENG-HYDROCARB 2C - Programme (EEC) of support for technological development in the hydrocarbons sector, 1986-1989 Tema(s) 1.6 - MISCELLANEOUS Convocatoria de propuestas Data not available Régimen de financiación DEM - Demonstration contracts Coordinador TEXACO BRITAIN LTD Aportación de la UE Sin datos Dirección WESTFERRY CIRCUS 1 CANARY WHARF E14 4HA LONDON Reino Unido Ver en el mapa Coste total Sin datos
