Crossover sub for oil well drill according to API spec 7-1
End:PIN or BOX
API REG:2 3/8″ , 2 7/8″ , 3 1/2″ , 4 1/2″ , 6 5/8″,7 5/8″
Technical specifications according API spec 7-1 for oil & gas drill
a. If type A is a double-box or double-pin sub,the overall length shall be ≥ 915 mm (36 inch)
b. If type B is a double-box or double-pin sub,the overall length shall be ≥ 1220 mm (48 inch)
Remarks: Solidkey also customize Crossover sub for water well drilling and trenchless drilling according to customer’s requirement.