@okey chijioke, you wana tell us that you have all the materials for all positions in SLB? You can't even predict their questions. All you can do is to tell whether it is Maths(GMAT,SHL etc), Mechanical, Electrical etc, if you've participated in such test. Hope you will not ask people to pay you for providing those tips. And afterall SLB may decide to change it.
So house shine your eyes.