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The article focuses on the management of wellbore-stability risks in relation to drilling through gas-hydrate sediments. It notes that quantifying of drilling hazards posed by gas hydrates has become important due to the development and exploration of hydrocarbon in water and onshore Arctic environments. It mentions that to answer the issue, 1D semianalytical model for fluid transport and heat in the reservoir has been used together with numerical model for temperature distributing wellbore.