Search
COILED TUBING CASE STUDY

Installation of Buoyancy Modules from a Vessel

Buoyancy modules installed at 3000 ft water depth from a vessel with coiled tubing downline

Download PDF
Opportunity

Deep Water

Opportunity
Specific Challenge

Subsea intervention at 3,000 feet water depth

REGION - USA REGION - USA

Gulf of Mexico

REGION - USA

Challenge

  • Install and de-water nine buoyancy modules to the mooring lines of a floating oil production facility​
  • 3,000 feet water depth​
  • Perform the operation from a DP vessel

Solution

  • Halliburton designed a complete coiled tubing (CT) package with 2-3/8” CT downline able to deploy at 3000 feet depth​
  • A ROV was used to enable the tie-ins with each of the buoyancy modules ​
  • Nitrogen equipment set up to pump from surface via the downline to displace the water

Result

  • Successfully installed and de-watered  all nine buoyancy modules​
  • The CT downline solution has been proven as a suitable method for de-watering deep water buoyancy modules from a vessel

9

Buoyancy modules installed

3,000

Feet water depth