Oil Country Tubular Goods
Oil Country Tubular Goods
Pipe used in wells in oil and gas industries, consisting of casing, tubing and drill pipe. Casing is the structural retainer for the walls; tubing is used within casing oil wells to convey oil to ground level; drill pipe is used to transmit power to a rotary drilling tool below ground level. Products and Services International

API Casing and Tubing Technical Data