EPIC for Installation of Flash Gas and/or Sag Pipeline Between Fahahil Stripping Plant and Fahahil Main Degassing Station, Qatar

The project scope includes detailed design and engineering services for 12'' Flash Gas/SAG Pipeline between FSP&FMDS Plant (4 km in length).

The project objective is to provide a pipeline transfer FACILITY for diverting the Flash Gas and/or SAG safely from FSP to FMDS to be used as injection gas in order to avoid flaring.

Parameters of the pipeline:

• Nominal Diameter (inch) : 12
• Minimum Nominal Wall hickness (mm):  8.4
• Corrosion Allowance (mm):  3
• Approximate Length (m): 3,900
• Proposed Linepipe Material: API 5L Gr. X 42 Seamless
• Design Pressure: 46.2 barg
• Design Temperature: 84 °C

Design Flow Rates:

• Flash gas:  Maximum: 24 MMSCFD, Minimum: 2 MMSCFD
• SAG: Maximum: 51 MMSCFD, Minimum: 5 MMSCFD
• Pipeline Pigging Requirements: Intelligent

Services provided

• Project Management and Administration
  • All project procedures related to the project programme, scheduling, reporting, etc.
  • Project meetings and follow up as it might be required.
  • Project Administration.
  • Preparation of the Documents Control Schedules, Drawing Registers, Time Schedule, etc. as required by Tender Documents.
• Site Survey
  • Site Visits, Data Collection and Preparation of Worksite Survey Report.
• Detailed Design Scope
  • On plot piping design
  • Offplot 4 km 12” pipeline design
  • Pipeline stress analysis by means of CAESAR II software
  • Hydraulic and blowdown analyses
  • All associated electrical, civil, loss prevention and I&C works
• “As-Built” Drawings
  • Preparation of “As-Built” drawings as per red-marked AFC drawings, stamped and approved by QP.

Technical data

• 12'' Flash Gas/SAG Pipeline of 4 km in length

Client

PANORAMA / Qatar Petroleum (QP), Qatar