Wspólnotowy Serwis Informacyjny Badan i Rozwoju - CORDIS

Characterizing hydrocarbon-bearing reservoirs

Sand beds, laid down under shallow tidal conditions tens or hundreds of millions of years ago, now form an important, but poorly understood, group of hydrocarbon reservoirs. Better understanding of their characteristics (shape, size, variability, etc) would permit more effective exploitation of their hydrocarbon content. This project drew together sub-surface data from known deposits, direct measurements of related rock formations where they outcrop and observations of the nature of modern deposits which are forming today under various conditions. The information has been correlated into a comprehensive database, on the basis of which geologists and reservoir engineers will be able to formulate more reliable models than the limited data from any one given location would otherwise allow.

The completion of the project resulted in the compilation of a substantial amount of summary data as well as considerable interpretation carried out on the geological characteristics of the formations studied. The database, developed as a deliverable of the project, is an extensive compilation of information on tidal deposits and tidal sandstone reservoirs and contains data from the literature and from field operations. It may be used as a basic reference guide for modern and ancient tidal deposits and for modelling purposes. The user can make a search and adapt the database to his own needs, and it can be updated as new information becomes available. The completion of the project resulted in the compilation of a substantial amount of summary data as well as considerable interpretation carried out on the geological characteristics of the formations studied. The results from this work will contribute towards an improved understanding of reservoir characterization and modelling. In practical applications, this could lead to increases in hydrocarbon recovery of about 5-10 % above original predictions. Such increases could boost North Sea oil reserve recovery.

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