Abstract
Authors describe the features of changes of reservoir pressures at oil and gas fields of the Yamal-Nenets Autonomous District. This research based on the results of hydrodynamic and thermometric studies in prospecting and exploration wells of Yamal-Nenets Autonomous District. In the Cenomanian, Albian, Aptian and in the top of Neocomian deposits, according to research, reservoir pressure usually equal to hydrostatic pressure. At the bottom of the Neocomian and Jurassic deposits set zones with abnormally high reservoir pressures within Gydan and Yamal Peninsula and in the Nadym-Pur-Taz interfluve. The results of the survey should improve the efficiency of exploration drilling by preventing complications and accidents during this operation in zones with abnormally high reservoir pressures.
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