I applied through my university website. A few days later I was selected for an interview at my career center. This 1 on 1 interview wasn't too bad. Just have good answers that are always based on your experiences. Be prepared for the normal stuff (Why we should hire you? What is your weakness? How do you know you want to be a Field Engineer?, Are you more of a follower or a leader?, etc). Overall, if you know how to interview, it's a cakewalk. Also make sure you also apply for the company on their website.
I was invited for a 2nd round interview in Midland, TX. In an accompanying email, I was assigned 2 other people from other universities, through which I was going to do a presentation. They give you an overall topic relating to oil drilling process. Before you even look up your topic, go do some research on how oil drilling works. There's a step-by-step process and you can find video tutorials online. Understanding the steps and the concepts, THEN start research your topic (I didn't do this and it made me look unprepared in my presentation). Your should relate your topic to one of the steps. Split the topic up 3 ways, giving each member a chance to present and shine.
For the interview, I given flight to leave on a Sunday morning and get back on Tuesday afternoon. When you get to the hotel on Tuesday around 2, be ready for a long, informative session (dinner included). You will start with some introductions, ice breakers, and Schlumberger history and information. After a dinner break, you will do your presentations. If you mess up, be chill and laugh it off, no one will be perfect. The recruiters will help you along if you get stuck and after each presentation they'll do a short teaching lecture. Take good notes! It will come up in your exit interview. The presentations are to teach you the basics of oil drilling, and unless you're a petroleum engineer, they don't expect you to know everything. That being said, ask good questions and don't be afraid to answer incorrectly.
The last couple hours are devoted to team building exercises and job information. For us, each team was given ~20-30 pencils, rubber bands, and a couple pieces of tape. 1 team builds a catapult, and the other builds a target that must be 3 ft high that can't topple over. In the middle they'll switch a member of each team. Just be a good team player, suggesting things but NOT demanding things. They are in the corner of the room watching you while pretending to not watch you. After this, they give you a description of each possible job you can apply for. There are a lot. Take notes and start formulating your 1st, 2nd, 3rd choices.
After 5 hours of sleep (to prepare you for a field engineer life), we did a tour of several facilities. These are just ways for you to meet other field engineers. Ask questions! but don't look like you're trying too hard. The recruiters are just a part of the tour group like you. But be yourself. If you suck-up, they'll notice, however, do not just disappear. Ask the recruiter questions during the tour and just make some comments here and there to show your enthusiasm. It's ok to show some concern for field engineer work, that's normal. Near the end of the last tour, try to get your recruiter alone near the back. That's what I did, and I just asked some questions about a couple of the positions, and asked her about her recruiting process. The more your recruiter interacts with you, the more they'll remember you.
At the end of the day you'll be given a sheet to fill out your preferences and have an exit interview. Don't worry you'll get time to shower. The exit interview is about asking why you made your choices. Personally, I made my 1st choice to be a Design engineer with Smith drill bits. I was honest about my hesitancy to go into field engineer work (though not too honest). Lastly, you go out to dinner with all the employees you met throughout the day. It's fun for everyone. However, if you select the design engineer position, they want you to meet some new employees from Smith Bits. So I had an informal hang out session during dinner while I sat around 4 employees. I still drank at dinner (which may have helped). I asked questions but had fun and so did they.
After dinner, all the interviewees drank beers in a hotel room... best end ever.
My advice: it's great if you're a decent engineering student (i.e. passed your classes). That's easy to show. Show that underlying, real person enthusiasm (opposed to suck-up), that'll get you the offer. (For reference, I had a 2.5 Mechanical Engineer GPA )
