Method for inhibiting hydrate formation
AssigneeThe British Petroleum Company p.l.c.
InventorsSimon N. Duncum, Antony R. Edwards, Christopher G. Osborne
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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 R'=NH.sub.2 or NH.sub.3.sup.+ X,Y,Z=H or OH, and 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.
Claims12
A method for inhibiting or retarding hydrate formation in a medium comprising water and gas susceptible to hydrate formation, which method comprises adding a compound of formula:
- ##STR4## wherein R=OH, OCH.sub.3, OC.sub.2 H.sub.5, NHNH.sub.2 or H
- R'=NH.sub.2 or NH.sub.3 +
- X,Y,Z=H or OH, and
- n=a number in the range 0 to 6,
- the compound being added in an amount effective to inhibit or retard hydrate formation.
A method for inhibiting or retarding hydrate formation which method comprises adding a compound of formula:
- ##STR6## wherein R=OH, OCH.sub.3, OC.sub.2 H.sub.5, NHNH.sub.2 or H
- R'=NH.sub.2 or NH.sub.3 +
- X,Y,Z=H or OH, and
- n=a number in the range 0 to 6,
- the compound being added in an amount effective to inhibit or retard hydrate formation, to a medium comprising water and a fluid selected from the group consisting of natural gas, of the first stage, petroleum gas petroleum gas dissolved crude petroleum, petroleum gas dissolved drilling mud, and mixtures of the same.
Dependencies are inferred from the claim text.