Started with an online application through my university's career services site, which was rejected. I showed up at the information session with a resume and told the recruiter they had made a mistake by rejecting me. The recruiter laughed, took my resume, and gave me an interview slot. Second interview was a few days after the first, then a field visit to a rig site was the final step. Those who managed to stay up all night & complete the various tasks were the ones hired. SLB rejects around 90% of those who apply.