SLB Wireline Field Engineer interview questions

first there was a phone interview which was about 45 minutes of basic behavioral questions. Towards the end they asked a few problem solving questions as well. After that they flew me out to Oklahoma City for a group interview. Prior we were assigned a product service line to explain to the group at the interview with a group. You arrive at the hotel and then have about an hour to prepare for the interview. Once you arrive at the conference room everyone presents and they berate you questions on things you clearly would not know. Then there's a group activity and then they explain the positions available. You don't make it to bed until about 2 have to wake up by 6 for field visits where they ask you even more questions. Ends with closing interview.