In 1945, Khain started working for the Institute of Geology of the Azerbaijan Academy of Sciences where he was soon appointed head of the regional geology department, teaching at the same time a course on geotectonics at the Azerbaijan Industrial Institute. Under his guidance, a monograph titled “Geology of Azerbaijan” as well as a geological map and a tectonic map of Azerbaijan were published. In 1947 he defended his doctoral thesis on geological structure and oil and gas potential of the South-Eastern Caucasus at the Institute of Geology of the Azerbaijan Academy of Sciences. In 1949 V. Khain was awarded professorship in the oil and gas geology department and worked there until 1954, having published in the interim a fundamental monograph titled “Geotectonic basics of oil exploration”. He moved to Moscow in 1954. The geologist's selfless work was highly appreciated, and in 1966 V. Khain was elected a corresponding member of the USSR Academy of Sciences and became a USSR AS academician on geotectonics and geophysics in 1987.
