Hydrocarbons of the Kara Sea Offshore Zone

Hydrocarbons of the Kara Sea Offshore Zone – the shelf of the Kara Sea is the northern extension of the West-Siberian oil-and-gas province. According to the findings of geophysical surveys and deep well drilling at the coast of Yamal Peninsula, the South Kara Depression composed of 8 km thick Jurassic and Cretaceous terrigenous rock with high organic matter content and great oil and gas production potential is situated in the southwestern Kara Sea. One of the largest oil and gas basins is believed to have formed here. Drilling of the deep wells in the Kara Sea shelf within the South Kara Depression allowed to discover giant Rusanovskoye (1987) and Leningradskoye gas and condensate fields at the end of 1980s. Situated 60–100 km off Yamal Peninsula shore within 50–100 m layer below the sea bottom, the huge reserves of the fields make them unique and efficient to explore in the twenty-first century. The estimated field resources are 9 tcm of gas. The gas flow rate exceeded 400 thousand m³...