SLB Global Rotational Development Program Trainee interview questions

30 minute behavioral interview, which was easy. Months later got called back for final round interviews. One 45 minute behavioral, one 45 minute technical, and a 10 minute presentation about your experience with Q&A afterwards. The behavioral interview was easy and the interviewers were very nice. The technical was very difficult. I would think I answered the question and they kept pressuring me for more information that I did not know.