Chapter 14 Lower Permian and Devonian carbonate reservoir rocks in the onshore and offshore areas of the Pechora Sea
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In the northern part of the Varandey–Adzva zone carbonate reservoirs have developed that have porosity favourable for oil and gas accumulations. The void space in these reservoirs, besides primary porosity, is associated with fracturing, giving rise to good reservoir potential in both the onshore and offshore parts of the Varandey–Adzva zone. The similarity of today's structure and the development during the main stages of geological history for offshore and onshore parts, the availability in the section of productive oil- and gas-bearing reservoirs, the high capacity of the reservoirs, the uniformity of lithofacial composition of the productive intervals and the uniqueness of the deposits structure – all these features contribute to the oil and gas potential of the Pechora Sea structures.