How should the wellhead device be used daily?

The wellhead device is composed of steam Christmas tree and tubing head. The lower part of the conical seat type tubing cross is connected with a 7" bottom flange, and the upper part is connected with a Christmas tree.

The wellhead device is a double-wing structure. The valve adopts the parallel gate structure commonly used in the world today. The valve body, valve cover, valve plate and valve stem are made of materials with good high temperature resistance and creep resistance. Therefore, the entire valve can withstand a high temperature of 380°C. Under high temperature and high pressure, the valve will not deform when opening and closing. The non-metallic seals are made of high temperature resistant materials and have good sealing performance at 380°C.

The wellhead device relates to an oil production wellhead device, which includes a tee joint, a gate, a pipe collar, a sub-joint, a flange and a polished rod sealer. The upper flange of the wellhead device is connected with a lifting sub-joint, and the lower part is provided with an outer cone The wellhead device is matched with the inner cone on the upper part of the lower flange plate to accurately position and center. The downhole pipe string is directly connected to the upper flange. An annular groove is formed on the end face of the joint of the upper flange and the lower flange, and the sealing steel ring is arranged in the groove of the wellhead device. The entire wellhead device is simple in structure, light in weight, easy to manufacture, reliable in sealing, and convenient to use.