Bela Majerszky
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* Árvaváralja, July 17, 1910 – † Budapest, March 7, 1972 / mining engineer ; ; He obtained his engineering degree in Sopron in 1937 and became an employee of the EUROGASCO oil extraction company. He utilized the knowledge he gained during his study trip to Louisiana, USA, and the drilling of several oil fields in the exploration of Hungarian oil deposits. Between 1945 and 1948, he managed the Transdanubian oil mining. Using the rotary drilling method, he developed the technology of deep thermal water exploration and exploration. ; ; His main work: Modern mud flushing and flushing system for deep drilling, 1968.