General

Key facts about Surface Test Tree

September 23, 2021 • By

During the intervention activities, the work of the surface test tree is to establish a connection to the string of the landing which provides surface isolation.

The system provides you with a safe interface with the help of wireline as well as coiled tube operations. Surface Test Tree consists of isolation valves which are above as well as below which proves the load-bearing swivel of an industry.

The other name of the surface test tree is also regarded as Flowhead. It is situated on the top of most of the well-directed and is also the initial piece of equipment where the fluid flows from the well. One of the important functions is to maintain the flow of the fluid towards in and out.

What does the flow head constitute?

The flow head constitutes of four valves of the gate:

  • Swab Valve
  • Master Valve
  • Two wing valves namely flow line as well as kill line

A swivel that is just below the main flowerhead’s block facilitates the drill stem to rotate without any issue, the test tree remaining stationary. The other kind consisting of a valve is just below the swivel.

What are some of the features of it?

The adaptation of the surface test tree can be connected to different sizes of tubes or different drill pipes via the usage of a crossover sub. Here are some of the features of it:-

  • Provide a safe interface for wireline as well as coiled tube operations
  • The swivel can bear the load
  • Upper as well as the lower isolation valve
  • Testing of the drill stem
  • Proper cleanup
  • Can be stimulated

Every tree consists of a handling sub for enabling the rig elevators for raising as well as lowering the tree which is in the derrick.

What are the services provided by them?

Some of the services provided by them are detailed below:-

  • Both onshore, as well as offshore testing, is done
  • Provides support to the weightage of the test string
  • Durability can be enhanced through protecting frame which is on the main block for manual as well as hydraulic valves

They offer numerous services which would be very beneficial to you. Only some are enumerated properly.