The lowest part of the wellhead that is almost always connected to the surface casing string, and
provides a means of suspending and packing off the next casing string.
Providing attachment to the surface casing string through the type of bottom connection (Slip-on-weld, threaded, Sliploc), the casing head is typically qualified to withstand up to 10,000 psi
working pressure. It suspends the casing and packs off the next casing string while providing
annular outlets, as well as supporting the BOP while drilling the remaining stages. Accepting the type casing hangers, the standard head is an API standard. It eliminates the need
for lockdown screws to retain the bowl protectors, creating fewer leak paths. The bottom prep
of the casing head can be machined to fit a variety of applications.
The straight bowl design prevents the wedge locking of bowl protectors, casing hangers, and test plugs, simplifying the installation process.
The casing head is a kind of part of connecting casings and wellheads.It is used to support the weight of technical casing and oil string and seal the annular space between the casing,which provides a transition joint for the installation of the tubing head.The two-side-outlet design allows the casing head to supply cement,monitor and control well's sinking,and inject balance liquids etc.
Our products have been ISO9001 certified and attained API 6A,6D,API 7,7K,and API 16A&16C approvals of American Petroleum Institute.All products are fully designed and manufactured in accordance with API,ANSI,GB(national standards)and SY(industry standards)standards.