I applied through their website and uploaded my CV for the research part. About 4 months later I got an email asking whether I would want to be considered for this placement and accepted. Then I had a telephone interview with the HSE manager which was fine because I had prepared basic questions. Ones I got asked were: Tell me about yourself, Name an interesting fact about yourself, Any hobbies, Where you see yourself in five years time?, Leadership example, What do you know about Schlumberger?, Why do you want to work here?. Overall the phone interview was easy and after that I did not need another interview so received an acceptance email.