Potential Field Anomalies and Oil-Gas Traps

The materials of regional gravity and magnetic researches are used a reliable basis for definition of the structural plan of territories, revealing of buried rises, basic tectonic blocks and basic disjunctives, that was confirmed for the first stages of study of the West-Siberian plate oil and gas bearing. As is known, in many cases the direct connection of deposits HC with abnormal gravitational (and or magnetic) field is found out. There is a plenty of such data on various regions: western Siberia, Byelorussia, Ustiurt, PreKaspiy, Canada etc. [1]. For water areas of Ob and Taz bays the most precise conformity extremuma of geopotential fields to the overwhelming majority productive anticlinal structures is observed.