ABSTRACT
Risk and reliability in the context of well engineering has become crucial in decision making. One of the critical problems directly impacting risk and the economical viability of a project is the reliability of equipment, operations and the human performance and interaction with drilling and completion systems. The construction process of an oil or gas well is a highly context dependent process, where two different wells present very different construction related characteristics. In order to tackle this problem, this article proposes and discusses some theoretical and methodological aspects for a probabilistic risk assessment in the context of well construction process. Some real cases are provided to illustrate the methodology.
