Trees

From Subseapedia
Jump to navigation Jump to search
Subsea Equipment System Overview.png

What are Subsea Trees?

Subsea Tree.png

Contains, Controls and Monitors fluid flow to and from the wellbore.

Tree Configuration Parameters

Tree Configuration Parameters.png
  • Production Bore Size
  • Operating Pressure (API Pressure Rating)
  • Temperature (API Temp Class)
  • Materials (API Materials Class)
  • Water Depth
  • Design Life
  • Chemical Injection
  • Downhole Lines
  • Insulation

Basic Subsea Tree Types

Horizontal-Captain.png
  • Similarities
    • Appearance
    • Equipment (valves, etc)
    • Control Systems

Horizontal - Captain

Subsea Tree Types - Horizontal 1.png Subsea Tree Types - Horizontal 2.png


Vertical - Strathspey

Vertical-Strathspey.png

Configuration Comparison

Configuration Comparison.png Configuration Comparison - Horizontal.png





Horizontal Tree Installation Sequence

Horizontal Tree Installation Sequence.png

BOP is installed onto on the Wellhead and the drilling is complete.

  • Retrieve BOP
  • Install Horizontal Tree
  • Install BOP
  • Drill out cement plug
  • Install Tubing Hanger
  • Set Crown Plugs (Shown Right)
  • Retrieve THRT
  • Retrieve BOP


Tree Applications

Production/Injection & Options

Production-Injection and Options.png
  • Production
    • "Standard" Tree
  • Water-Injection
    • Provides reservoir drive
  • Gas-Lift
    • Requires additional connection, valve(s), and porting on tree valve(s)