<prompt> Bhala ukuqhubeka kwalesi sigaba - Emidlalweni yama-Olympic asehlobo ka-2012 eLondon, u-Oliveira waqhudelana emidlalweni efanayo ngabodwana ngezinsuku ezimbili kuphela. Uthole amazinga we-FINA B ka-1: 59.72 i-200 m emuva kusuka kuma-European Championships  <response>: eDebrecen, eHungary, no-1:58.50 200 m butterfly kusuka e-Summer Universiade eShenzhen, eChina. Emncintiswaneni wakhe wokuqala, i-200 m butterfly, u-Oliveira wabeka okwesibili emncintiswaneni wasekuseni. Wadlula yonke inkambu ukuze ahole ukushisa kwesibili ngomthamo wezindwangu ongcono kunayo yonke ka-1: 58.45. Ezinsukwini ezimbili kamuva, emncintiswaneni wamamitha angama-200 emuva, u-Oliveira waphonsela inselelo abanye ababhukudi abayisikhombisa emncintiswaneni ofanayo, kuhlanganise noGábor Balog waseHungary, owamanqamu eMqhudelwaneni WaseYurophu. Wabeka irekhodi elisha lasePortugal lika-1: 58.83 ukuze athole indawo yesibili ngemuva kukaBalog. U-Oliveira uphuthelwe yi-top 16 semifinals ngamashumi ayisithupha wesibini 0.60, njengoba wabeka indawo yamashumi amabili kuma-prelims. 