Objective
The project was established to evaluate the feasibility of a carbon dioxide miscible flood within the west European area and to conduct a pilot flood as a tertiary process in the watered out egmanton reservoir.
All data required for simulation and engineering design was generated in the laboratory studies and an understanding of the co2 miscible flood mechanism was built up. After initial difficulties it eventually proved possible to model the miscible flood process in the egmanton pilot area using two approaches. Within phase 2, a programme of drilling, workover and individual well tests, and two interference tests, provided core material and data for the field model. The site and facilities required for the pilot project were designed, built and commissioned. They were then used to test production wells and to inject co2 and water on a test basis.
However, low co2 and water injectivity confirmed the decision to terminate the project prematurely on the basis of the extended time scale - as indicated by the model studies - and the escalating cost to complete the pilot test. A reduced scale pilot test scheme was not found viable.
Project activity has formed the basis of four publications.
The project comprised laboratory and computer modelling studies (phase 1) and preparation for, and operation of, a five well pilot test (phase 2) together with further studies. BP entered into agreement with "Compagnie Francaise des Petroles", "Societe Nationale ELF-Aquitaine" (production) and "Institut Francais du Petrole", whereby these French partners performed part of the studies and met 50% of the total expenditure on the studies (less the appropriate EEC grant).
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DEM - Demonstration contractsCoordinator
EC24 9BU London
United Kingdom