Progressive Pigging of 16” x 89km Timi Gas Pipeline

Establish a clean, obstruction-free gas export pipeline.

Maintain integrity of foam pigs under high-pressure, high-velocity conditions.

Minimise debris and condensate in the system during the final pigging runs.

The campaign was executed in three phases, each with tailored pigging tools engineered by Royal:

Medium-Density Pigs designed to sweep early debris and test flow conditions
Launch Pressure: 113 barg
Velocity Range: 5 m/s (launch) → 20 m/s (receipt)
Average Velocity: 7 m/s
Catcher Outcome: Pigs received in pristine condition, maintaining shape and integrity

Deployed to continue debris clearing and simulate denser flow
Same Pressure & Velocity Profile
Despite the absence of a pig catcher, the pigs performed without foam degradation

Final run with Bi-Directional By-Pass Pigs to ensure no significant condensate or debris remained
Launch Pressure: 149.2 barg
Velocity Range: 0.6 m/s → 1 m/s
Bypass Open: 10%
Total Debris Collected: < 100 grams — indicating exceptional internal cleanliness

Zero Pig Damage across all runs – even under high pressure and velocity
Wet Gas Compatibility: Pigs maintained structure and sealing capability in saturated gas
Polyurethane (PU) Longevity: All pigs were 12 months old, yet showed no significant drop in abrasion or tear strength

Foam Integrity Under Pressure: Royal’s formulations prove robust in challenging gas environments
Pig Catcher Integration: Improved recovery of MD pigs without compromising condition
Data-Driven Design: Pigging parameters defined and validated by performance

“Royal’s progressive pigging strategy and robust foam design enabled a safe and effective gas pipeline start-up with full assurance at every phase.”

Knowledge Kit