In a method for optimizing gas lift operations in the production of crude
oil, a surfactant is injected with the lift gas into the an oil well such
that the surface tension between the lift gas and the formation fluid
being produced is reduced and/or a lift gas-formation fluid foam is
formed. The reduction in surface tension and/or foam formation increases
the efficiency of the lift gas for lifting the formation fluid to the
surface. The surfactant is selected to minimize corrosion. The
surfactants consist essentially of sultaines, hydroxy sultaines, and
their salts. It is emphasized that this abstract is provided to comply
with the rules requiring an abstract which will allow a searcher or other
reader to quickly ascertain the subject matter of the technical
disclosure. It is submitted with the understanding that it will not be
used to interpret or limit the scope or meaning of the claims. 37 CFR
1.72(b).