Before you get a 2nd round interview you get a phone interview. This consists of basic questions, why schlumberger, what traits does a good leader have, etc. Then you're invited out for a 2 day interview. First night starts at about 6pm when you listen to about 3 hours of speeches on the company and the position/technology. Then there are some icebreakers and self introductions as well as a group presentation on a technology that you were emailed before you get there. You eat dinner and there is a team exercise, ours was to make a catapult out of some given materials. Of course they pull fast ones on you like taking away materials and group members to see how you cope. You get to bed around 2am. The next day you're up at 7:30 for breakfast and then travel to the nearest regional headquarters and then out to a drill site. At the depot they take you around and show you a lot of technology that is pretty much over everyone's head but everyone is competing to ask as many questions as they can so you end up listening to a lot unneeded information that doesn't really help you make you decision on if this is the right position for you. It actually seemed as if they frowned on questions like, "what is the life style of a field engineer?" and "how stressful is the position?" questions that one could actually gauge if it was a good fit. Rather they wanted to hear, "how does that pump work?" and "what are the specs on the process water?" questions that really don't matter to anyone except those who are actually using the equipment and most of the time they wouldn't be able to answer because things change to meet each jobs requirements. Never the less, ask about the equipment because, although you'll find the answers mean nothing it shows you're interested about the process rather than yourself. You do this all day. Then, to close, in front of everyone, they ask you if you like'd the experience, if you still want the job, and where. They have you fill out some paper work as well. Finally they take you to dinner on the second night and pay for everything. My group of recruiters got hammered and took us out to a bar afterwards. Don't be an obnoxious drunk but being able to socialize with other employees i'm guessing is a plus. You fly out the next day.