helen wu 2025-04-22 08:25:43

采供Wellhead devices and oil production trees are important equipment in oil extraction. They are used to fix the wellhead, suspend the downhole pipe string, seal and control the annular space between the pipe strings, control the wellhead pressure, regulate the wellhead flow rate, and can also be used for special operations such as acidification, fracturing, water (gas) injection, and testing. The wellhead device consists of casing heads, tubing heads and oil production trees.