E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/32 (2006.01) C09K 8/52 (2006.01)
Patent
CA 2243835
A process for the thermo-hydraulic control of gas hydrates in subsea production and injection wells as well as pipelines which transport liquid or gaseous hydrocarbons is described, the process making use of a Nitrogen Generating System foamed or in solution. The control may signify the prevention of the formation of the gas hydrates or the dissolution of the gas hydrate plug already formed. Under conditions of use designed for the prevention of the formation of gas hydrates the SGN fluid prevents the thermal conditions leading to the gas hydrate plugs. Under conditions of use designed to dissolve the already formed gas hydrate plugs, the SGN fluid alters the thermo-hydraulic conditions which favor the gas hydrate plugs, so that they are dissolved and return to the water + gas phase.
de Oliveira Rocha Nelson
Ferreira Leite Lucia Cristina
Khalil Carlos Nagib
Gowling Lafleur Henderson Llp
Petroleo Brasileiro S.a. - Petrobras
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