Simulation experiment of immature oil genetic mechanism in lake facies of semi-salt water

The immature calcareous shale in the south slope of Dongying sag, Jiyang de pression, plays a significant role in immature oil genesis, and is sampled to make simulation experiment. The geochemical characters of the products o f soluble organic matter and kerogen are researched respectively. The yield s of the two components and their relations are made out. The contribution ratio between soluble organic matter and kerogen undergoing early degradati on in lake facies of semi-salt water is figured out for the first time, so the research into the genetic mechanism of immature oil is developed.