The three parts of this volume - technical refinement; technical innovation and project management and risk minimization - reflect the areas of opportunity for improved cost effective techniques for exploration and production of oil and gas in the North Sea and worldwide. This text should be of use to engineers and scientists interested in the latest advances in technology and resource management that will reduce costs and continue to enhance the safe exploration of oil and gas resources. It comprises a selection of contributions presented at the International Conference Subsea International '93, held 28-29 April 1993 in Aberdeen.