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.
Engineering
We have expertise in delivering multifarious engineering design solutions to oil and gas, power, and public sectors. We offer comprehensive engineering services including;
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Piping and pipeline
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Mechanical
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Process
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Instrument & Control
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Electrical
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Civil/Structural
We have experience in all phases of engineering design including;
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Conceptual/Basic Engineering
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FEED
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Detailed Engineering
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Follow-On Engineering
Technical Services
Our technical service expertise includes engineering management services, project management and construction supervision.
Our engineering services include:
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HAZOP and Constructability Reviews
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Procurement Support
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As Built Documentation
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Interface Management
Our project management and construction supervision services include:
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Construction Management
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Project Planning and Schedule Management
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Factory Acceptance Testing (FAT) Coordination and Supervision
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Site Integration Testing (SIT) Coordination and Supervision
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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:
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OFON – 2007 to 2009
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USAN – 2008 to 2009
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OFON 2 – 2011 to 2012
Unincorporated Joint Venture Agreement (JVA) between IESL and DORIS in 2016.
Now IESL DORIS Ltd.
All Our Services
Working Hours
- Weekdays 7:00 am - 4:00 pm
- Saturday Closed
- Sunday Closed




