Forwell Blast Joints are heavy wall pin by box connectors used in tubing strings and are designed to minimize the effect of external erosive action caused by production fluids. Forwell Blast joints are located opposite the location of perforations in the production casing or just below the tubing hanger in sand frac designs. Forwell blast joints are manufactured from seamless mechanical tube in sizes ranging from 2 3/8” to 4 1/2” OD. Any length, grade of material, and threading is available at the customers request. Typical lengths are 10' and 20'. Both API and Premium threads are available.