Objective Objectives The objective of the project is a quantitative methodology for forecasting changes in water chemistry, particularly precipitation of carbonate scale, in a form usable by industry. This will be achieved in three stages within this project and will aim for a pilot field demonstration in a future THERMIE project via an oil company or SME. Technical approach - To develop a reliable (robust, rapid and accurate), experimentally-verified geochemical computer simulator able to predict thermodynamically and kinetically near-wellbore changes (mineral precipitation and dissolution) occurring in a reservoir at production start and during production. - To determine the relative significance of the controls - pressure, pressure-changes, temperature, rates of change and brine composition - for the geochemical forecasting of carbonate scale during field life production timescales. - To describe the heterogeneity of oilfield formation water compositions sufficiently to be able to predict natural variations as a function of time/production history. - To produce data on the controls of carbonate scale precipitation from laboratory experiments, simulating both well-bore and reservoir, suitable for calibrating/verifying the computer simulations. - To develop a predictive tool (for industrial use) for quantitative assessment of carbonate scale, including the effects of iron, H2S and organic acids. - To produce guidelines for water sampling and disposal, where certain ion concentrates exceed regulatory and/or environmentally acceptable levels. Expected achievements and exploitation The objectives will be achieved in three stages, Stage A: data quality assurance, combining field data (BP), laboratory data (IC, BRGM, RU) and theoretical modelling BRGM, IC) to develop a reliable (robust, rapid and accurate), experimentally verified model (BRGM). Stage B: definition and ranking of parameter space, particularly compositional (RU and IC), T and P fluctuations (IC) for the geochemical forecasting of carbonate scale during field life production timescales (BRGM) Stage C: development of predictive tool for quantitative assessment for industrial assessment of carbonate scale (BRGM, BP, SME) including the effects of iron, H2S and organic acids (IC), guidelines for water sampling and disposal, where certain ion concentrates exceed regulatory and/or environmentally acceptable levels (RU). Fields of science natural scienceschemical sciencesorganic chemistryorganic acidshumanitieshistory and archaeologyhistorynatural scienceschemical sciencesinorganic chemistryinorganic compoundsnatural scienceschemical sciencesorganic chemistryhydrocarbonsnatural sciencesmathematicsapplied mathematicsmathematical model Programme(s) FP4-NNE-JOULE C - Specific programme for research and technological development, including demonstration in the field of non-nuclear energy, 1994-1998 Topic(s) 0404 - Hydrocarbons Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator Imperial College of Science Technology and Medicine Address Prince consort road SW7 2BP London GB See on map EU contribution € 0,00 Participants (3) Sort alphabetically Sort by EU Contribution Expand all Collapse all BP EXPLORATION OPERATING COMPANY LTD. GB EU contribution € 0,00 Address Chertsey road TW16 7LN Sunbury-on-thames See on map Bureau de Recherches Géologiques et Minières (BRGM) France EU contribution € 0,00 Address Avenue du concyr 45060 Orléans See on map UNIVERSITY OF READING GB EU contribution € 0,00 Address Whiteknights RG6 6AB Reading / silchester See on map
