For the Russian economy, which is so heavily dependent on energy production, the issue of Arctic development is very important. Practice shows that some countries are successfully producing oil and gas in the northern seas. However, only one field has been put into industrial operation on the Arctic continental shelf in Russia at the moment. Therefore, the analysis of approaches to the development of the Arctic shelf of other countries and the study of foreign experience of state stimulation of investments in the development of Arctic resources are now extremely relevant. At the same time, Norway is most interested, so successfully developing its hydrocarbon-based economy. In addition, Norway has access to the same Arctic sea as Russia and is actively engaged in industrial production in it.

The article considers the question about cements for deep wells. Various classifications of cement mortars are considered. The time of setting for cement slurry, specific gravity of cement slurry, strength of set-cement, permeability of set-cement and waterloss of cement slurry are described. The cementing job may be recommended to be done on the deep well El Dosuky in two ways are shown.