Dee a n'ihu maka paragraf a - Na June 2008 ewu malitere na a siri ike na ubé ibu pesonel okirikiri nke e nwere ike iji kwalite "Alvin" (maka ojiji si 2011), tupu a na-eji na a kpam kpam ọhụrụ ụgbọala. A haziri okirikiri ọhụrụ ahụ, ma mezie ya, site na ngwongwo titanium siri ike, na ọkara abụọ, na Ladish Forge, Cudahy, Wisconsin, wee mezie 15.5 tọn nke titanium ma gbakọta ya, na-eji ọdụ ụgbọ mmiri ise (kama nke ugbu a) ma haziri ya maka omimi nke ihe karịrị, ebe "Alvin" wuru omimi omimi. Nke a, tinyere nkwalite n'ozuzu nke usoro nkwado, ngwá ọrụ na ihe onwunwe, ga-eme ka "Alvin" ruo 98% nke ala oké osimiri. Mgbe ha mikpusịrị onwe ha nke ikpeazụ iji chọpụta otú ala oké osimiri dị n'Ọwara Oké Osimiri Mexico si mebie n'ihi ọdachi nke ụgbọ mmiri Deepwater Horizon
A rụgharịrị "Alvin" bido na Jenụwarị 2011, na atụ anya ịlaghachi n'oké osimiri na 2012 na ikike omimi zuru oke ruru na 2014.