Subsea Wellhead Diagram

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Subsea Wellhead Diagram. The top termination of the tieback at the platform will typically use surface unitized wellheads with solid block Christmas trees which have fewer leak paths as pressure-controlled access points to each well. If the pressure is not contained during drilling operations by the column of drilling fluid casings wellhead and BOP a well.

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It is common to identify the type of tree as either subsea tree or surface tree. It is composed of a variety of valves which are used for testing servicing regulating or choking the stream of produced oil gas and liquids coming up from the well below. The top termination of the tieback at the platform will typically use surface unitized wellheads with solid block Christmas trees which have fewer leak paths as pressure-controlled access points to each well.

Subsequent casing hangers land on the previous casing hanger installed.

For economic reasons the trend is to place sub-systems along the. Subsea wellheads and Xmas trees are one of the most vital pieces of equipment in a subsea production system. Digital twin for improved decision support and reduced cost. Mechanically however they are placed in a subsea structure template that allows the wells to be drilled and serviced remotely from the surface and protected from damage eg from trawlers.