Rubuta ci gaba don wannan sakin layi - A Wasannin Olympics na bazara na 2012 a London, Oliveira ya yi gasa a cikin nau'ikan mutum guda tare da kwanaki biyu kawai tsakanin su. Ya sami matsayin FINA B na 1: 59.72 (200 m baya) daga Gasar Turai
a Debrecen, Hungary, da 1: 58.50 (200 m malam buɗe ido) daga Summer Universiade a Shenzhen, China. A farkonsa, 200 m butterfly, Oliveira ya sanya na ashirin da biyu a farkon safiya. Ya wuce duk filin don ya jagoranci zafin jiki na biyu a cikin mafi kyawun tufafi na 1: 58.45. Kwana biyu bayan haka, a tseren mita 200 na baya, Oliveira ya kalubalanci wasu 'yan wasa bakwai a cikin wannan zafin, gami da Gábor Balog na Hungary, wanda ya kai wasan karshe a gasar zakarun Turai. Ya kafa sabon rikodin Fotigal na 1: 58.83 don samun matsayi na biyu a bayan Balog. Oliveira ya rasa saman 16 na wasan kusa da na karshe da kashi shida cikin goma na biyu (0.60), yayin da ya sanya na ashirin a cikin prelims.