High Hardness Oil Wellhead Equipment Casing Head Housing Assembly Standard Structure

Oil Wellhead Equipment, Casing Head Assembly, Casing Hanger, Casing Housing

The casing head is a kind of part connecting casings and wellheads. It is used as supporting the weight of technical casing and production casing, sealing the annular space between the casings, and installing BOP stacks. It provides a transition joint for the tubing head, Christmas tree and other wellheads. It can also supply cement, monitor and control well’s sinking, and inject balance liquids etc by the two side outlets on the casing head housing.

The casing head is a standard structure, the casing hanger fits well with the casing housing, and the casing hanger of different sizes are available according to the casing procedure and the change of well head conditions. The standard casing head’s top connection is API 6B or API 6BX flange.

The options of the casing head are as follows:

The bottom connection of the casing head is either API round box thread and API buttress box thread. It can also be slip type connection.

It can be provided with weld supporting base plate.

Side outlets could be pipeline thread or studded, studded side outlet is machined with female thread for connecting R1 1/2’’ reversing valve.

All kinds of tools for casing head equipment, such as wear bushing assembly, bowl protector running and retrieving tools, and tests are also available in our works.

The casing heads have a straight bore bowl with 45° landing shoulder design which avoids damage to sealing areas by drilling tools and prevents test plug and bowl protector wedging problems when pressure is applied.

Casing heads are normally furnished with threaded outlets and studded outlets are available upon request. Bottom connections can be furnished threaded or slip-on for welding.

Specification for single wellhead

Specification for single wellhead