Colloid Environmental Technologies' fluid treatment technology was introduced in the Gulf of Mexico in 1996. It was used to treat fluids from acid stimulation flow backs and well completions. Colloid Environmental Technologies' fluid treatment technologies are designed for the oil and gas and pipeline industry. The company s filtration medias and chemical flocculents are used in conjunction with high-tech equipment operated by trained Colloid Environmental Technologies service personnel. CET offers technical experience to a range of specialized markets. Its parent, AMCOL International Corporation produces and markets a range of specialty mineral products used for industrial, environmental and consumer-related applications. CET has a location in Arlington Heights, Ill.