The production of single tubing electric submersible
pump wellheads, dual tubing wellhead devices and dual-path integrated production tree is the main trend of wellhead device development. In China, the tubing
head and Christmas tree are called the “wellhead device”, and it already has a
mature market. In general, the series of gate valves are mainly applied to the
application of special anti-corrosion materials, and the structure is
diversified. At present, the maximum working pressure of foreign oil production
tree is 140 MPa, and the maximum limited working pressure of flanged connection
gate valves which constitutes a tree is 210 MPa. Many foreign companies have
constantly developed and improved the electric submersible pump wellhead device
and the overall production tree. Producing an overall production
tree with single tubing electric
submersible pump wellhead device,
dual completion wellhead device and dual-path
integrated oil tree, we can also produce subsea and onshore wellhead devices
onshore according to oilfield conditions and retained fluids in wells. Now, the
major producing countries are the United States, Britain, Italy, and more than
a dozen countries. The United States has a world-leading product technology and
production capacity. Well-known manufacturers include Cameron, F.M.C, Vetco,
and Gray. The Cameron company has the best performance and quality, but the
price is higher.
