Method for inhibiting hydrate formation

US5331105A · kind A · utility

Assignee

• The British Petroleum Company p.l.c. · GB

Inventors

• Simon Neil Duncum · Bracknell, GB
• Antony Edwards · London, GB
• Christopher George Osborne · Cranbrook, GB

Key dates

• Filing date: Oct 1, 1992
• Grant date: Jul 19, 1994
• Expiry date: Oct 1, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S585/95
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A method for inhibiting or retarding gas hydrate formation comprises adding a solution of a compound of formula: ##STR1## wherein R=OH, OCH.sub.3, OC.sub.2 H.sub.5, NHNH.sub.2 or H PA0 R'=NH.sub.2 or NH.sub.3.sup.+ PA0 X,Y,Z=H or OH, and PA0 n=a number in the range 0 to 6, or a polymer thereof when R'=NH.sub.2, the compound or polymer thereof being added in an amount effective to inhibit or retard hydrate formation, to a medium susceptible to gas hydrate formation, e.g. fluids produced from an oil well, particularly an offshore oil well.