Overview

In June of 2017, RAE was awarded a contract from McDermott to jointly provide subsea tieback work in the Penn State Deep (PSD) field in the Gulf of Mexico for a major oil and gas exploration company. Penn State Deep 6 has been developed as a subsea tieback to the Baldpate facility.

The 5,189 foot, 8.625-inch-OD flowline system was fabricated onshore at the McDermott Gulfport Spoolbase and then reeled on its North Ocean 105 lay vessel to be completed and installed to a water depth of about 1,650 feet.

RAE was responsible for providing full-service project management of the flowline and tie-in system, extending to spoolbase pipe fabrication and handling, and offshore services, including NDT and FJC of the flowline and welding of the tie-in PLET structure aboard the lay vessel.

The project was completed and online by March of 2018.

Scope of Work

Project Management

• Onsite Supervision

• Trained and Certified Personnel

• Materials & Equipment Management

• Firing Line Productivity

• QHSE

Welding

• Manual Welding (TIG) of 8.625-in of Flowline Stocks at Spoolbase

• Manual Welding (TIG/SMAW) of Tie-In PLET Structure on Vessel

Inspection by UT Quality

• AUT utilizing proprietary UT Scan PA System on Vessel

Field-Joint Coating

• Blast

• Induction Heating

• Application of FBE, CMPP, & IMPP

• Technical Services

Pipe Handling Operations

• Pipe Receipt and Offloading

• Roller Boxing

• Spooling Operations

  
  

Results

Production Rates

• Welded 11 joints per day on 130 joints

Repair Rates

• 1 weld repair

Daily Manning Levels

• 68 welding and coating personnel