Filled out Part 1 and Part 2. Make sure you do the practice test for Part 2 found on their website, it's a tricky test with a tight time constraint. Interview was all behavioural based so familiarize yourself with Shell's businesses but you don't have to go nuts with it (I memorized everything, bad idea.).
The interview process is the same as most other large companies. initial on-line application, situational tests, numerical reasoning tests, interview and finally an assessment centre. \Very rigorous application process but this is to allow them to get the greatest understanding of who you are and how you work within a team and by yourself.
I applied online. The process took 2 months. I interviewed at Shell in Mar 2014
Interview
Has a phone interview which was basic behavioral based questions.
Then had an online test
Then was invited to Calgary for 2 days.
First day was just learning about company and a dinner with some engineers who had gone through the process.
The Second day was packed with tests, behavioral based questions, case study, a group interview, and reflection based interview.
Interview questions [1]
Question 1
Nothing Unexpected. Just a lot of behavioral questions covered so, prepare well.