The only way is to do it the right way, ask your parents to talk to her parents. Discuss this situation peacefully. Islam doesnt allow u to run away and get married, it doesnt even allow u to have a girl friend. Dont get in trouble by making wrong choices, this is not bollywood. Qatar has quite strict rules about such things. Plus you might not only get urself into trouble, but even the parents, so be very careful at what you do. 

It's always the small things that make big differences.