Surfactant package for well treatment and method using same

Details Surfactant package for well treatment and method using same Surfactant package for well treatment and method using same

2004-08-10

2008-09-30

Zimmer, Marc S (Department: 1796)

Colloid systems and wetting agents; subcombinations thereof; pro

Continuous liquid or supercritical phase: colloid systems;...

Aqueous continuous liquid phase and discontinuous phase...

C516S057000, C516S058000, C516S076000, C507S240000, C507S247000, C507S253000, C507S254000

Reexamination Certificate

active

07429620

ABSTRACT:
A surfactant blend for servicing wells includes a first non-ionic surfactant having a hydrophilic-lipophilic balance of between about 10 and about 15; a second non-ionic surfactant having a hydrophilic-lipophilic balance of between about 2 and about 6; and an anionic surfactant.

REFERENCES:
patent: 4518512 (1985-05-01), Kanamori
patent: 5370185 (1994-12-01), Cowan et al.

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