DOO Integrated Services Ltd delivers fully integrated solutions for the offshore installation of oil and gas production facilities. We have extensive experience and expertise in hook-up and commissioning, offshore transportation and installation (T&I) of jackets and topsides, seabed intervention, subsea construction and subsea installation of umbilicals, risers and flowlines (SURF). In addition, we offer services to floating structures such as floating production, storage and offloading units (FPSOs) including mooring installation.

Our focus is on field development, brownfield revamp/modification of fixed platforms, associated pipelines and deepwater floating systems. Our installation activities bring together a range of fields of expertise including collaboration with partners who are global leaders in offshore installation to create comprehensive, cost-effective solutions that are specifically tailored to meet your needs. Our global partnerships complement and extend DOO Integrated Services Ltd local capacity and capability and enable us to offer fully integrated solutions supported by in-house engineering, procurement, dedicated project management capabilities and fleets of various types of construction/installation vessels.

Hook-Up Services

Our Hook-up services comprise the installation of modules on new platforms and the refurbishment of topsides of existing fixed and floating production facilities.

Offshore T&I

In strategic alliance with foreign technical partners, DOO Integrated Services Ltd provides fully integrated transport and installation (T&I) solutions for fixed offshore oil and gas production structures in shallow waters. Our activities include seabed preparation, transport to the field including load-out from construction sites, lifting and launching jackets, installation of topsides and associated pipelines.

Integrated Subsea Construction & Installation

We offer integrated services for subsea infield installation of spools, subsea structures, floating hoses, pipelines, power cables, and subsea infrastructure pipeline end manifolds (PLEM). We also offer inspection, repair and maintenance, and light construction work with divers and remotely operated vehicles (ROV’s). Further, we can provide FPSO, mooring buoy and mooring system installation, platform and subsea structure decommissioning.


We provide full range subsea services and hold strong EPCI (Engineering, Procurement, Construction, and Installation) expertise within the SURF (Subsea structures, Umbilicals, Risers, Flowlines) segent. Leveraging partners’ high-end construction support vessels, we safely execute projects, which connect seabed wellhead infrastructures to surface facilities such as platforms and floating production systems.


Our integrated installation solutions allow us to streamline processes and reduce interfaces, thereby savings costs and time, and reducing risks. We provide in-house engineering, procurement, project management as well as the following:

  • Hook-Up Services
  • Offshore T&I
  • Integrated Subsea Construction & Installation
  • SURF