MICROTUNNELLING

Underground drilling for offshore outfalls

Specialised solution for marine outfalls and pipelines from land to the marine environment

At Catalana de Perforaciones, we integrate microtunnelling technology for the execution of underground drilling with offshore discharge, providing a specialised solution for the construction of marine outfalls and pipelines requiring controlled crossings from land to the marine environment.

This technology enables highly precise alignment without affecting the coastline, beaches or existing infrastructure, ensuring optimal control at the exit point into the marine environment.

Commitment to protecting the marine environment

Protecting the marine ecosystem is a key factor in offshore outfall projects. For this reason, we plan and execute drilling operations with the objective of minimising any environmental impact.

The use of trenchless techniques such as microtunnelling helps preserve the coastline and reduces disturbance to the seabed, preventing sediment dispersion and minimising impact on marine ecosystems.

We work with highly qualified teams to ensure that each intervention is carried out in harmony with the environment, contributing to sustainable and responsible project execution.

Drilling characteristics

Microtunnelling for demanding projects: large diameters and high precision

LENGTH:
– Minimum lengths: 20 m
– Maximum lengths: 2000 m

DIAMETER:
– Minimum diameter: 300 mm
– Maximum diameter: 3.500 mm

PRECISION:
Millimetric control of the alignment up to the offshore exit point, with the ability to operate in variable ground conditions and in environments with groundwater presence.

Uses

  • Construction of marine outfalls
  • Crossings beneath the coastline
  • Land-to-sea connections for hydraulic infrastructure
  • Installation of pipelines for water supply and wastewater systems
  • Desalination and water intake infrastructure
  • Projects in environmentally sensitive coastal areas

Advantages of microtunnelling in marine environments

  • HIGH PRECISION AND CONTROL

    Guidance systems ensure accurate execution of the drilling alignment.

  • MINIMAL ENVIRONMENTAL IMPACT

    Avoids intervention along the coastline and seabed, reducing visual impact and sediment dispersion.

  • SAFETY IN CHALLENGING GEOTECHNICAL CONDITIONS

    The mechanised cutting head and precise control make microtunnelling a suitable solution for working in saturated ground, where the water table is present, and on technically demanding projects.