Christmas Tree (xmas tree) Design
The Christmas tree is the cross-over between the wellhead casing and the flowline. The wellhead is the cross-over between the Christmas tree and the various casings.
- controls the wellhead pressure and the flow of hydrocarbon
- enables the well to be shut off in an emergency
- provides access into the well for well intervention activities.
Wellhead/christmas tree interface
The selection of the wellhead is normally by the Drilling Engineer in conjunction with the well structure design.
Both drilling and production . . .