Casing head is used to fix the drilling well and connect the casing string under the well. It can reliably seal and control the annular spaces between pipes, and it is an important part of Wellhead. Casing head is designed with a 45° Circular bead, used to support the weight of casing string transmitted by casing hanger, and BT type secondary seal can be used for the bottom.


JL-22 and JL-29 casing spools feature a versatile straight bore design with 45°landing shoulder to support maximum casing loads, and accept a wide variety of slip and mandrel type casing hangers, minimizes risk of damage to sealing areas by drilling tools, and prevents test-plug and bow-protector wedging when pressure is applied. 
 
JL-29 Casing Spools are based on the same design as the JL-22 with exception that the bowl is larger, which allowed the JL-29 casing hanger with larger load capacity.
 
Outlets
u Line Pipe Outlets
u Studded Side Outlets 
 
Bottom Connections:
u PE/BG bottom
u OO bottom(below 5,000psi)
u Double "P" seal bottom