Engineering Design
Overview
IESL provides the complete engineering of oil and gas field development, from conceptual studies to detailed engineering of Topsides and Offshore platforms, Process facilities, E & I Design and Operability Analysis, procurement, project management, technical assistance, and construction supervision.
Our Engineering Services
Engineering
We have expertise in delivering multifarious engineering design solutions to oil and gas, power, and public sectors. We offer comprehensive engineering services including;
- Piping and pipeline
- Mechanical (HVAC, Rotating and Static)
- Process
- Instrument & Control
- Electrical
- Civil/Structural
- Telecom
We have experience in all phases of engineering design including;
- Conceptual/Basic Engineering
- FEED (Front End Engineering Design)
- Detailed Engineering
- Follow-On Engineering
Technical Services
Our technical service expertise includes engineering management services , project management and construction supervision.
Our engineering services include:
- HAZID, HAZOP and Constructability Reviews
- 3-D Modelling for Oil and Gas Platforms
- Procurement Support
- As Built Documentation
- Interface Management
- Civil/Structural
- Conceptual/Basic Engineering
Our project management and construction supervision services include:
- Construction Management
- Project Planning and Schedule Management
- Factory Acceptance Testing (FAT) Coordination and Supervision
- Site Integration Testing (SIT) Coordination and Supervision
- Pre-Commissioning and Commissioning Support
IESL / Doris a Strategic Alliance
The relationship between IESL and Doris started far back in 2006 when Doris took up the challenge and responsibility of developing IESL to become a full fledge Engineering Design company. On the strength of this successful partnership, the companies went on to execute three projects together, allowing Doris to provide further technical supervision to IESL for a period covering over five years. The projects are:
- OFON – 2007 to 2009
- USAN – 2008 to 2009
- OFON 2 – 2011 to 2012
Unincorporated Joint Venture Agreement (JVA) between IESL and DORIS in 2016.
Now IESL DORIS Ltd.
Other Services
Oilfield Supply & Services
This business unit delivers end-to-end procurement, supply chain, and operations services, including logistics, EPC solutions for offshore living quarters and helidecks, ensuring cost-effective, safe, and compliant project execution.
Technical Services
We offer flexible consultancy, technical support and project management services tailored to client needs. Our solutions combine expertise, training, and skilled personnel to strengthen workforce capability and ensure safe, reliable, and efficient operations.
Environmental & Laboratory Services
We operate fully equipped, certified and government and NUPRC-approved environmental laboratories in Port Harcourt and Lagos, delivering high-quality environmental testing and monitoring services to the oil and gas and manufacturing sectors for over 25 years.
Power & Renewable Energy
We provide engineering design, construction management, and support for conventional and renewable power projects, delivering tailored solutions—from feasibility studies and substations to renewable systems and energy management—for reliable, efficient, and future-ready power infrastructure.
