WORKING IN LAGOS, NIGERIA (Lagos)

Hi all, I am soon going to assigned to a project in Lagos, I will be spending 4 weeks at a time there, followed by 4 weeks at home. In my 4 weeks there I will be based offshore on an oil production facility. The only time I will spend onshore is transfere to and from the air port. I was just wondering if anyone could share storied or perhaps personal experiences on what to expect, how I should avoid certain situations etc ? I did the same type of work in Angola, I was there for 2 years. Is it the same ?