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Classification of Christmas Trees - Single Pipe and Double Pipe

A single tubing Christmas tree is installed on the wellhead device of a single tubing completion well. In addition to the split type and integral type, it also has single wing and double wing. Depending on the type of well or the production method of the oil well, different forms of single tubing Christmas trees can be formed by combining valves and short joints, and their connection methods can be flange type, threaded type, or clamp type.

2022.10

Discussion on the importance of casing head in wellhead equipment

Discussion on the importance of casing head in wellhead equipment The casing hanger of the casing head and casing cross has a straight seat structure with a 45 degree conical surface on the shoulder, which has good load-bearing capacity. The casing head can be designed as an integral or split structure as needed.

2022.07

Solution to faults in wellhead equipment

The wellhead device is the production hub of an oil well, which is the surface part of the entire oil well. Whether it is a self flowing wellhead device or a pumping well device, their main function is to suspend the tubing string and bear the weight of all tubing strings in the well; Seal the annular space of oil pipes and casing to ensure the smooth progress of various underground operations, control and adjust production data and daily management. Therefore, the performance of wellhead equipment has a significant impact on oil wells. With the increase of oilfield development time, due to natural conditions, external and human factors, wellhead equipment may be damaged to varying degrees. In order to maintain the normal production of oil wells, identifying the causes of damage to the wellhead equipment, analyzing the influencing factors, and repairing it in a timely manner is an important task for well repair.

2022.01

Performance and characteristics of wellhead equipment

1. All pressure bearing components and flanges are made of high-quality alloy steel forgings and undergo non-destructive testing to ensure safety. 2. The gate, valve seat, and needle valve of the gate valve are all made of laminated (spray welded) hard alloy. 3. After special heat treatment, the main components of the wellhead device have good sulfur resistance.

2022.01

What is the function and purpose of the choke and kill manifold?

Choke Manifold Choke manifold is a necessary equipment for controlling well kick and implementing pressure control technology for oil and gas wells. By configuring a hydraulic control cabinet, remote control can be achieved.

2021.09

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