FOAM CONTROL AGENTS USED

Brand	Owner	Address	Description
ADVANTAGE	Solenis Technologies, L.P.	2475 Pinnacle Drive Wilmington DE 19803	Foam control agents used in paint, inks, coatings, metal finishing, textiles, and other industrial processes;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Self-generating foamed fluids for circulation through a well during drilling operations and methods for circulating such self-generating foamed drilling fluids are provided for. The drilling fluid comprises an aqueous solvent, a polymer, a surfactant, a first foam generating agent, and a second foam generating agent. The first and second foam generating agents react to generate a gas within the drilling fluid and thereby to foam the drilling fluid. Preferably, the foam generating agents are selected such that they react to generate carbon dioxide. Preferably a base fluid comprising excess amounts of only one of the foam generating agents is pumped into the drill string using a hydraulic pump. The other foam generating agent then is injected in a controlled manner downstream of the circulation pump such that the drilling fluid is foamed after being pumped for circulation through the well. The novel drilling fluids preferably have a density of from about 5.8 lb/gal to about 0.83 lb/gal, and most preferably, from about 3.3 lb/gal to about 0.83 lb/gal.