To ensure safe, effective exploration and transmission of oil and gas in challenging conditions, USS-LIBERTY TC™ premium and semi-premium connections utilize optimized threads and seals to connect individual joints of steel pipe to form continuous casing string. Premium connections, ranging from 4 ½–7 5/8 in. OD, incorporate TightFit™ thread form with metal-to-metal seal and shoulder configuration. Applications include shale, horizontal, and extended reach wells as well as sour service.