Not much difference actually. Both of them are powerhouses in the oilfield service industry. Technically, any service that SLB has, Halliburton can match it as well with their very own tools and equipment and vice versa.

HOWEVER from the career perspective, the difference can be very significant. (eg. work culture, job security, $$$ and prospect)

It wouldn't matter much to you right now because i think first u need some experience and exposure in the field first before start thinking about comparing companies.

Life in Brazil? Awesome man. Lots of hot latino ass and entertainment. Just stay away from those favelas and slums and you'll be alrite.

As for work culture, i think every where is pretty much standardized and streamlined in SLB. Generally, if you do want to compared with the work culture of Asian countries, i think South Americans like to take things slow and easy.

Start learning Portuguese and dancing if you do want to blend in with the community.

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Added on March 30, 2010, 7:50 am
Look dude, you want an oilfield job, and now that you got it and you are worried you cant cope with the pressure and the demands of the job?

I sincerely hope that you didnt receive an offer to work in Halliburton wireline logging because you will have to handle some really nasty radioactive substance.
Yes, there will be some controlled and containable radioactive exposure in your work, as for mandul wise, it rarely happens unless you are silly enough to ignore the safety procedures and put it inside your side pocket.

NO you cant move to office if you don like the field job. Your social life will go down the drain for sure. You'll spend more time travelling in aeroplanes, boats and helicopters than in your own car. Must at least 3 years of offshore experience before you even think of that. And that also you need to fight with 10-20 other engineers to get an office based job.

Think you are UP to it?

Completion does not deal with radioactive substance, or explosive substances, or chemicals. Since you'll be based in Kemaman, chances are you will be at the workshop redressing, pressure testing, making up etc completion tools there.

Completions is the stage right before production can begin, completion tools are the equipments required to be installed/run-in downhole during completion.

Hope that's clearer, cheers.