The wellhead Christmas tree in the API6A product is composed of four kinds of valves, reducing joints, nozzles and pipe fittings. So what is the role of the Christmas tree? It can be used to control production, and it also provides good conditions for wellhead wireline operations, production logging operations, wellhead pressure sensors, production pressure measurement operations, wellhead sampling, and temperature sensors.

The offshore platform Christmas tree can be divided into integral type and split type according to the structural form. The integral type is mainly discussed here, so you know why the integral structure of the Christmas tree is suitable for oil and gas wells on offshore platforms? Because the integral type mainly assembles the main valve, safety valve, wing valve and wax cleaning valve into a whole and the distance between the valve and the valve is very small, which saves space and is also resistant to high pressure.

In addition to the split type and the integral type, the single-tubing tree is divided into single-wing and double-wing, which is installed on the wellhead device for single-tubing completion. Different forms of single-tubing Christmas tree can be composed of valves and short joints. Single-tubing Christmas tree has three different connection methods: flange type, thread type and clamp type.

The dual-tubing Christmas tree is installed on the wellhead device of the dual-tubing completion. The dual-tubing completion separates the two oil and gas interval pairs by the dual-tubing packer and the single-tubing packer. The dual-tubing tree is used for the control of two reservoirs and independent production.