CHOISIR LTD
Choisir Ltd is a chemical engineering consultancy based in Ireland specialising in Process & Technical Safety, Process support and Hardware engineering. With each consultant and associate having over 20 years of industry experience, we provide reliable, value adding and practical support services to multinational clients.
Choisir Ltd works with a variety of clients across a wide spectrum of industry sectors including:
Oil and Gas (Topside & Subsea)
API & Bio Pharmaceuticals
Chemicals & Utilities
LNG
Wastewater & Water Treatment
Clean Energy, e.g. Carbon Capture & Hydrogen
Food & Beverages
TECHNICAL/PROCESS SAFETY ENGINEERING
Project Process Safety Philosophies and Concepts
Process Safety Management
Consequence Modelling
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Safety Critical Element and Performance Standard Reviews
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Hazardous Area Schedules, Atex Assessments
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Emergency Shutdown C&E and Logic Diagrams
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Permissive and Interlocks Reviews
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ALARP demonstrations
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Consequential Loss Calculations
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Chemical Reaction Hazard Assessments,
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Development of Safety Reports and Emergency Response Plans
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Functional Safety Studies (TÜV Rheinland certified)
PROCESS SUPPORT ENGINEERING
Overall Field Layout and Production System P&IDs, PFDs
Review of Control System Cause & Effects
Process Alarms and Trip Registers
Process Alarm Guidelines
Philosophies and Operating guidelines
Start-up, normal operation and shutdown Operating guidelines
Datasheet Review and Preparation
Initiate, Follow Through and Authorization of eMOCs
Process project support from concept through to execution & operation
Plant Modification design reviews
EQUIPMENT/HARDWARE SUPPORT
Providing Hardware/Equipment Technical Support for the Operation of Equipment
Condition Monitoring of equipment using process data via Data Historian/SCADA
Resolving Field Operational Problems and Defining Operating Envelopes
Create Task Plans for Barrier Testing, Leak & Pressure Testing, Equipment Testing
Create & review Commissioning & Pre-Startup Commissioning Procedures
Review of Punchlist Items, Create PMRs, Update POPMs/SOPs
Equipment Operating Procedures/Task Plans
Providing Support to Manage Vendors and Subcontractor Activities
Providing Technical Support and Troubleshooting Capability
CHAIRPERSON ROLES
Industry Sector | Study Brief | Facilitator Study Types |
|---|---|---|
Food and Beverages | Review of Penstock Valves in a drainage system on a WWTP | LOPA |
Upstream Oil & Gas | New Development feasibility study; new gas wells to tie into new and existing manifold Hubs | LOPA |
Onshore Gas Processing | Oxygen Scavenger Injection into Methanol System | HAZOP |
Onshore Gas Processing | Plant modification assessing the replacement options for control valves | HAZID |
Offshore Gas | Reservoir Halite formation remediation design study | HAZID |
Carbon Capture | CO2 Capture and Storage (CCS). The study reviewed a proposed technical solution for CO2 marine transportation to an offshore storage site and injection into a subsea reservoir | HAZID |
Onshore Gas Processing | Sales Gas Compressor Re-Wheel | HAZOP |
Onshore Gas Processing | Groundwater Treatment Plant | HAZOP & HAZID |
Upstream Oil & Gas | Existing Development; new gas wells to tie into existing manifold Hubs | LOPA |
Onshore Gas Processing | Maintenance Flare Temperature Transmitter and Flowmeter design, hook up and installation | HAZID |
Onshore Gas Processing | Centrifugal Pump Seals Replacement | HAZOP & HAZID |
Onshore Gas Processing | Gas Export Odorisation process review | HAZOP & LOPA |
Onshore Gas Processing | Wastewater Treatment System review | HAZOP |
LNG /HP Gas transfer | FEED study of Gas Export facilities | HAZID |
Offshore Oil & Gas | Water Injection Pipeline and spools assessment | HAZID |
Onshore Gas Processing | Polyelectrolyte Dosing Skid into a Wastewater System | HAZOP |
Offshore Oil & Gas | Oil Terminal export PLEM | HAZOP & HAZID |
Bio Pharmaceutical | Fermentation Building Drains following a spill incident | HAZOP & HAZID |
API Pharma | Chiller packages, Nitrogen/Argon storage and distribution (Utilities) | HAZOP & HAZID |