Природа нефтей района Ванкорского месторождения

Geochemical investigations of oils, gases and Cretaceous and Jurassic rocks were performed for part of Vankorskoye oilfield. A role of different source rocks in oil and gas formation was evaluated based on Rock-Eval pyrolysis results and GC-MS analysis. It is shown that Yanovstan formation rocks were a main source for oil.