offshore geotechnical drilling, CPT and SPT testing, seabed soil investigation, offshore foundation design, OTS Offshore Vietnam, site investigation services EU G7

Geotechnical Drilling in Offshore Projects: Techniques, Applications & OTS Capabilities

🌊 What is Geotechnical Drilling? – Applications in Offshore Projects


📌 Attention – Why Geotechnical Drilling Matters

In the ever-demanding world of offshore energy and marine infrastructure, geotechnical drilling is not just a step—it’s the foundation of certainty. Without an accurate understanding of what lies beneath the seabed, even the most advanced rigs or wind turbines risk structural instability, costly delays, or outright failure.

offshore geotechnical drilling, CPT and SPT testing, seabed soil investigation, offshore foundation design, OTS Offshore Vietnam, site investigation services EU G7


🔍 Interest – What is Offshore Geotechnical Drilling?

Geotechnical drilling is the process of retrieving soil and rock samples from below the seabed to understand subsurface conditions. This data is critical for the design, engineering, and installation of offshore platforms, wind farms, pipelines, and subsea structures.

These investigations assess:

  • 🧱 Soil strength, density, and composition

  • 🌊 Seabed layering and bearing capacity

  • ⚠️ Potential geohazards (e.g., shallow gas, weak strata, liquefaction zones)

Offshore drilling campaigns typically use CPT/CPTu (Cone Penetration Test), SPT (Standard Penetration Test), rotary coring, and vibrocorers, depending on the project’s technical requirements and water depth.


🔬 Desire – Offshore Applications with Real Impact

Here’s how geotechnical drilling is shaping safer, more efficient marine infrastructure:

⚙️ 1. Offshore Oil & Gas Platforms

Before installing jack-up rigs or wellhead jackets, soil strength must be verified to support massive structural loads. Tests like CPT and rotary drilling ensure safe anchoring and reduce pile-driving risks.

🌬️ 2. Offshore Wind Farms

Wind turbines rely on monopiles or suction caissons—structures that go deep. Geotechnical data ensures they won’t shift or sink. OTS Offshore supports clients with seabed assessments tailored to EU and G7 standards.

🛢️ 3. Subsea Pipelines & Cables

Proper trenching and burial require understanding the shear strength and cohesiveness of seabed sediments. This prevents free spans, settlement, or exposure over time.


🛠️ Action – Why Choose OTS Offshore?

OTS Offshore Trading & Services Co., Ltd is a Vietnam-based provider of geotechnical drilling and offshore engineering services with a proven record supporting EU and G7 clients.

✅ Our Capabilities:

  • Advanced in-situ testing: CPT, CPTu, SPT

  • Certified rotary drilling & coring systems

  • Soil lab analysis (density, permeability, shear strength)

  • Offshore mobilization via customized jack-up solutions

  • Team of engineers trained to API, ASTM, ISO standards

📈 A recent success story: In 2024, OTS led a full geotechnical investigation in the South China Sea for a European wind project, delivering a full soil report and foundation recommendation within 3 weeks—ahead of schedule and under budget.


📞 Contact OTS Offshore

OTS OFFSHORE TRADING & SERVICES CO., LTD
📍 Office: 63/18A, Co Giang Street, Ward 4, Vung Tau City, Vietnam
🏭 Workshop: 42H, 30/4 Street, Ward 9, Vung Tau City
📞 Phone: +84 908 52 54 74 – (0254) 354 0969
📧 Email: [email protected] | [email protected]
🌐 Website: www.ots-tl.com

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