Case Study: Overcoming Challenges in Underwater Pipeline Foundations

Constructing underwater pipeline foundations presents unique challenges, including sediment instability and high water pressure. This case study illustrates how XCMG Used Rotary Drilling Rig and SANY Used Rotary Drilling Rig were integral to completing a complex pipeline project in a coastal region.

Project Overview

Location: Offshore site with varying sediment compositions.
Objective: Install a 500-meter underwater pipeline to connect coastal facilities.
Challenges:
- Sediment shifts during drilling.
- Ensuring environmental compliance in a protected marine zone.

Equipment Selection

XCMG Used Rotary Drilling Rig
- Provided stability during drilling in soft sediment layers.
- Equipped with real-time monitoring systems for precise operations.
SANY Used Rotary Drilling Rig
- Used for pile insertion and stabilization, ensuring durability under water pressure.

Implementation

Site Preparation
- Soil testing conducted to assess sediment composition.
- XCMG Used Rotary Drilling Rig calibrated for varying sediment densities.
Pipeline Foundation Drilling
- XCMG Used Rotary Drilling Rig drilled precise holes for the foundation, ensuring minimal sediment disruption.
Pile Stabilization
- SANY Used Rotary Drilling Rig deployed to insert and stabilize support piles.
Environmental Safeguards
- Biodegradable drilling fluids used to protect aquatic life.

Challenges and Solutions

Sediment Shifts
- Advanced torque control in the XCMG Used Rotary Drilling Rig mitigated sediment collapse during drilling.
High Water Pressure
- SANY Used Rotary Drilling Rig provided the necessary stability for underwater pile insertion.
Ecological Impact
- Compliance with marine protection laws achieved through eco-friendly operations.

Outcomes

Pipeline Stability
- Foundation piles met all structural requirements, ensuring the pipeline's integrity.
Environmental Preservation
- The project preserved marine habitats while completing construction within the timeline.
Cost Savings
- Efficient use of XCMG Used Rotary Drilling Rig and SANY Used Rotary Drilling Rig reduced operational costs by 15%.

Conclusion

This case study highlights the vital role of XCMG Used Rotary Drilling Rig and SANY Used Rotary Drilling Rig in addressing the complexities of underwater pipeline construction. With advanced features and eco-friendly designs, these rigs deliver precision and efficiency in challenging conditions.