Wells – Processes – Heating – cooling or insulating
Patent
1991-09-26
1993-03-02
Suchfield, George A.
Wells
Processes
Heating, cooling or insulating
166 57, E21B 3600, E21B 4324
Patent
active
051901056
ABSTRACT:
A method for enhancing the uniformity of steam quality, i.e., steam quality equalization, in a multiple steam injection system having a steam generator, a primary steam header, at least one secondary steam header, a primary steam line connecting the generator to the primary header, at least one secondary steam line connecting the primary header to a secondary steam header, and a plurality of tertiary steam lines connecting the secondary steam header to a tertiary steam header or one of a plurality of steam injections wells involves the introduction of a surfactant at a point subsequent to the steam generator. The surfactant preferably includes those alkyl aromatic sulfonates which include at least one alkyl group comprising 12-30 carbon atoms, more preferably, 20-24 carbon atoms with the preferred concentration of surfactant being about 100 to about 250 ppm, based on the total cold water equivalent of the steam flow.
REFERENCES:
patent: 4556107 (1985-12-01), Duerksen et al.
patent: 4953639 (1990-09-01), Stowe, III
patent: 5000263 (1991-03-01), Stowe, III
patent: 5005644 (1991-04-01), Wall et al.
patent: 5056597 (1991-10-01), Stowe, III
Chevron Research and Technology Company
Suchfield George A.
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