SPE Papers are always a good start in terms of references - they also make references to many other good books/papers on the topic discussed. Many universities have an agreement with the SPE to provide their papers free.... even if not, you can still use the SPE site ( [link Point to another website Only the registered members can access]
If you want something related to EOR - just do a keyword search for (in your case) 'EOR' or simply 'Enhanced', and see which sorts of topics are coming up frequently and recently
If you want a topic which you might have a chance of actually doing something semi-meaningful with (not just summarizing industry research) then you may elect to choose one that you can investigate further with reservoir simulation - but make sure to be realistic with yourself about (a) your (lack of) simulation skills and (b) the data you will have available
Good luck
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