SALYM oil field is on the Lempa high of the Salym uplift in the eastern part of the Khanty-Mansiysk depression in the Middle Ob region of West Siberia.
The Salym uplift is about 50 km long and 45 km wide and trends north. The Lempa high is 25 km long and 16 km wide; closure is 150 m. The Salym field is about 275 km west of the giant Samotlor field.
Stratigraphy. The sedimentary cover overlying the Paleozoic Hercynide basement in the Middle Ob region consists of Jurassic, Lower and Upper Cretaceous, Paleogene, and Quaternary marine and continental sediments.