The Use of Exploration Geo-Science Data in the Planning and Execution of Site Investigations for Offshore Development Facilities

Abstract

Prior to development of an offshore hydrocarbon field large sums are spent by Operating Companies on the acquisition and processing of exploration geo-science data. These data, augmented by other publicly available data, can be cost-effectively integrated and reviewed to aid field develop­ment conceptual design, selection of suitable sites for development facilities and planning of detailed, site-specific, geotechnical and geophysical site investigations.

This paper illustrates the range of geo-science data that normally exists and the uses to which such data can be put. A case history of two field development sites in the southern North Sea is presented to emphasise the benefits of such a data review and the pitfalls that can occur if such a review is not undertaken.

The benefits of multi-use of existing data are summarised. Recommendations are made for future geo-science data acquisition to provide further information for subsequent field development site investigations.