KINETIC GAS HYDRATE INHIBITORS IN COMPLETION FLUIDS

• Main Authors: TIAN, JUN, RIVERS, GORDON, T, TRENERY, JOHN, B
• Format: Patent
• Language: English; French
• Published: 23.06.2011
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; ADHESIVES; CHEMISTRY; DYES; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIRELIGHTERS; FIXED CONSTRUCTIONS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MINING; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL GAS; NATURAL RESINS; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PAINTS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; POLISHES; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE

Gas hydrate formation in a well completion fluid in the annular space of a hydrocarbon producing well may be controlled by the incorporation of effec¬ tive amounts of one or more low dose gas hydrate inhibitors, including but not limited to, low dosage hydrate inhibitors (LDHIs), kinetic hydrate inhibitors, dendrimeric or branched compounds, linear polymers and copolymers, grafted or branched linear polymers and copolymers, and onium compounds. Selon la présente invention, la formation d'hydrates gazeux dans un fluide de complétion d'un puits dans l'espace annulaire d'un puits de production d'hydrocarbures peut être régulée par l'incorporation de quantités efficaces d'un ou plusieurs inhibiteurs d'hydrates gazeux à faible dose, comprenant sans caractère limitatif les inhibiteurs d'hydrates à faible dose (LDHI), les inhibiteurs cinétiques d'hydrates, les composés dendrimères ou ramifiés, les polymères et les copolymères linéaires, les polymères et les copolymères linéaires greffés ou ramifiés, et les composés d'onium.