Main pagePress roomNewsGiprotyumenneftegaz has been granted a patent for the invention "Method of oilfield mixture treatment for transportation" Giprotyumenneftegaz has been granted a patent for the invention "Method of oilfield mixture treatment for transportation" August 5, 2015 Subscribe Giprotyumenneftegaz has been granted a patent for the invention "Method of oilfield mixture treatment for transportation" Giprotyumenneftegaz has been granted a patent for the invention "Method of oilfield mixture treatment for transportation". Top