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



PANORAMA / Qatar Petroleum (QP), Qatar