I applied through university. The process took 3 days. I interviewed at SLB (Mumbai) in Jul 2009
Interview
1. Standard 1:1 interview on techinical background
2. Presentation to a group of management on why you want to joint he company and what the company will get from you
3. Panel and group discussion on various topics- non technical
I applied online. The process took 1 day. I interviewed at SLB (Austin, TX) in Oct 2021
Interview
They asked the basic questions: "Why are you interested in Schlumberger?" "Talk about your past experiences". Although I did only interview for an internship they made the process very easy.
I applied through university. The process took 3 months. I interviewed at SLB (Houston, TX) in Nov 2019
Interview
I applied through campus and was given an in person interview, it was a general HR interview, more like they wanted to get to know you. Then was offered a second round where they reserved a hotel for you and invited all the candidates for dinner to meet the interviewers. the next day was reserved for interviews, each person had two interviews.
I applied through university. I interviewed at SLB (Houston, TX) in Sep 2017
Interview
Group interview, in person interview with a presentation about yourself. No guidance on the type or content of presentation. 3 very intense private "interviews" on site with one amounting to an interrogation, complete with a man standing over you blocking the door.