This section will compare the pros and cons of both vertical subsea trees and horizontal subsea trees and list the criteria to select a subsea tree. Brief Information about Christmas tree that is Sub-sea horizontal vs vertical x-mas tree. In petroleum and natural gas extraction, a Christmas tree , or tree, is an assembly of valves,.

Subsea trees are available in either vertical or horizontal configurations with further speciality available such as dual bore, monobore, concentric, . Bufret Oversett denne siden 15.

A subsea Christmas ( X-Mas ) tree is composed of valves that are connected to a subsea wellhead. This is to provide a controllable interface . A subsea Xmas tree is basically a stack of valves installed on a subsea wellhead to provide a controllable interface between the well and . Run BOP stack on marine riser. Subsea production trees can be segmented into two main types: horizontal trees and vertical trees.

Horizontal trees are so called because the . A reliability study of a Deepwater Vertical.

Xmas Tree with attention to XT retrieval rate. Animations of how XMAS tree is being installed offshore. Valve orientations can be either vertical with production tubing suspended in the wellhea or horizontal with production tubing suspended in the tree. We have enough documented studies about spool trees in . Christmas tree or X-mas tree is: the set of valves, spools and fittings connected to the top of a well to isolate, direct and control the flow of . Vertical and horizontal trees are built and installed with proven technology based on extensive subsea experience and years of testing under some of the most . A vertical subsea Xmas tree (200) having a production bore (203) and two valves (10) in the production bore (203). Each valve (10) has a valve . Managing Installation Tolerances through System . These trees allow installation and retrieval of downhole equipment through the tree without having to disturb the tree or its external connections to flow lines, . BHGE has also been at the forefront of recent gas field developments providing our 7” large bore tree systems in both, vertical and horizontal applications.

For conventional Xmas trees, also referred to as vertical Xmas trees , a tubing hanger (TH) is hung off in the wellhead or the tubing head spool below the XT. Qualitative Reliability Analysis of X-Mas Tree Configurations. The swab valve on the vertical x-mas tree and the crown plug on the horizontal x-mas tree. The Enhanced Vertical Deepwater Tree (EVDT) is a mono-bore system that combines the critical safety and reliability features of vertical tree technology with the .

Vertical : 1) valves stacked vertically of the tubing hanger;. Production tubing and tubing hanger are installed prior to the Xmas tree. Vertical or horizontal flowline connections are available in either hydraulic or . Direct vertical full bore access to both the production and annulus bores shall be.