A partir de l expérience des auteurs sur la gestion de projets dans les domaines du pétrole et du gaz, ce guide présente les différentes phases d un projet, de sa conception à son organisation, sa planification et son contrôle. Présentation en anglais Project management guide The purpose of this book is to provide some understanding and guidelines on the way medium sized and large Projects in an international environment can be initiated and managed. Its content is based on the collective experience of the authors obtained during the last forty years with an international Oil & Gas Company, with the rest spent with engineering and construction contractors. The experience of the authors in the development of oil and gas fields (onshore and offshore) may usefully inspire the management of large projects in other domains of activity : it is certainly right for the nuclear industry, the chemical industry and most process industries. This book covers all the various steps and aspects of a Project : the risks related to a Project, the various phases of a Project, the Project organization, the contractual issues, the HSE objectives and human dimension, the scheduling of a Project, the cost monitoring, the quality control and quality assurance aspects and the training issues.