This final thesis summarizes the purpose of the activities at the company of “Drillmec Spa”, completing the academic career of Petroleum Engineering at the university of “Politecnico di Torino”. Drillmec is a leading company in the design, production and distribution of drilling rigs and workovers, and supplier of a wide range of drilling equipment, both on-shore and off-shore. The following thesis will outline all the phases of work supported by Mr. Francesco Curina (Training Manager and Instructor Assessor of IWCF) and the team of the Drillmec Training Center’s instructors, where I carried out all my work and training activities. The purpose of this activity was to actively contribute to the projects of the department, where I was able to develop the Well Control project related to the design, and analysis of the well control model considering the important parameters for simulation of this phenomena by the simulator of the company, which was an important point of view to be considered for the training, and then performing the sensitivity analysis for the well control, and drilling parameters to check, how they can have effect on well control and drilling activities.