Warm insulation of exhaust pipe when taking gas from the “dome - separator” installation from large depths

Abstract

The article describes the impact of the use of polyurethane insulation on the tubes sclerosis by hydrate when gas is taken from the “dome-separator”, installation that designed for emergency hydrocarbon collection at the bottom of the ocean. Such an installation collects hydrocarbons directly above the breakthrough point at the bottom of the ocean, and their transportation is carried out through pipes to the collecting vessel. Currently, in the conditions of the development of the Arctic shelf in order to increase the level of oil production, such breakthroughs can cause enormous damage to the ecosystem, in particular, in the Arctic Ocean, since living organisms that exists in the harsh conditions of these latitudes are more sensitive to changes in the environment. But during the passage of gas through the exhaust pipe in the presence of moisture and corresponding thermodynamic conditions, a hydrate formation process occurs. This phenomenon can cause the pipeline to overlap and impede the normal operation of the selection of hydrocarbons from great depths. To prevent these consequences, work suggests possible options for warming the pipeline. It is shown that sclerosis of a pipe extending to great depths can be prevented even with small values of polyurethane foam insulation.