Raul–Yuri Ervier  Raul-Yuri Georgievich Ervier (; 16 April 1909 – 9 August 1991) was a Soviet geologist and director of the main Tyumen production geological department (“Glavtyumengeologiya”). He was head of wide-ranging geological explorations that discovered of the largest oil and gas fields in Western Siberia. He was born 16 April 1909 in Tiflis, to a French emigrant’s family. He finished school in his native town. In 1923 he began working as a student - assistant of a foreman of a soap plant in Tbilisi. In 1929 he joined the Melitopol gas expedition. Since that moment he was linked with geology until the end of his life. In 1933 he finished the High Engineer Courses in Kiev. He worked with various geological groups in the Ukraine until 1941. He served in the Great Patriotic War after August 1941. He served in sapper units, was the commander of individual detachment of deep drilling of a sapper battalion. Took part in defense and liberation of Ukraine and Northern Caucasus. He was demobilized in December 1944 at the rank of major – engineer. From 1945 through 1952 Ervier worked as the head of South – Moldavian oil exploration of trust “Moldavneftegeologiya”. In August 1952 he was assigned to Tyumen oil and gas exploring expedition. Since 1955 he was the main engineer of Tyumen gas and oil exploring trust. Since 1956 he was the director of the trust, later the department of “Tyumenneftegeologiya”. The head of main committee “Glavtyumengeologiya” in 1966-1977. On 29 April 1963 Yuri Georgievich Ervier was awarded the star of the Hero of Socialist Labour and the order of Lenin and a gold medal “Hammer and Sickle” for outstanding achievements in discovering and exploration of mineral deposits. In April 1964 he was among the group of specialists and scientists awarded the Lenin prize for “grounding of aspects of foulness and oil – bearing capacity of Western Siberia plain”. Such people, as F. K. Salmanov, A. M. Brehuntsov, V. T. Podshibyakin, V. D. Tokarev, L. I. Rovnin, I. Y. Girya, A. G. Yudin, V. A. Abazarov, have honourably continued the course, started by Y. G. Ervier.