The well head assembly consists of three parts: casing head, tubing head and Christmas tree.  The well head assembly consists of three parts: casing head, tubing head and Christmas tree, which is mainly used to control the pressure of producing wellhead and adjust the flow of...

Wellhead assy standard structure slip-type bottom connection Wellhead assyCasing head, for connection of casing to various wellhead assemblies, is applicable to support of the weight of the technical casing and the oil-layer casing, pack off the annual space between the casings,...