EXPERIENCE
SAH Selected Experience
Specialist process engineering experience across oil & gas projects, from concept and FEED through detailed design, process safety and operational support.
Recent SAH Projects
Temporary Methanol Injection Package
Service:
Detailed Design
Key Capability:
Rapid mobilisation of SAH process engineering team / Collaboration with Engineering Contractor and End Client.
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An engineering contractor was delivering a subsea tie-back project for a North Sea Oil & Gas Operator requiring a temporary methanol injection package. Due to the tight project schedule, additional process engineering support was required at short notice.
Client Requirement
The contractor engaged SAH Process Consultants Ltd to provide experienced process engineering support to rapidly progress the package design and documentation.
SAH Scope of Work
SAH provided process engineering support including:
- Basis of Design Document preparation.
- Methanol injection line sizing calculation.
- Pump air supply hose sizing calculation.
- P&ID review and development.
- HAZOP documentation review.
- General process engineering assistance.
- Participation in project and End Client meetings.
Engineering Challenge
The key challenge was the very tight project schedule, requiring experienced process engineering resources to be mobilised quickly and integrated effectively into the existing project team.
SAH Solution
SAH provided experienced process engineering personnel at short notice, working directly with the contractor's project and engineering teams to rapidly progress the required calculations, P&IDs and process documentation.
The flexible approach allowed the contractor to supplement its engineering resources without impacting the project schedule.
Outcome & Value
SAH delivered the required process engineering scope within the project timeframe and to the client's satisfaction, supporting the successful implementation of the temporary methanol injection package and the operator's project requirements.
Key Value Delivered
Rapid Mobilisation • Process Engineering • Process Design Support • HAZOP Support • Schedule-Focused Delivery
Hydrocyclone Reject Stream Rerouting
Service:
Process Study
Key Capability:
Process Study Development
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An oil & gas operator proposed the rerouting of an existing hydrocyclone reject stream to a different location on an offshore platform. The proposed modification would change the back-pressure conditions on the hydrocyclone reject system, potentially affecting the performance of the existing hydrocyclones. An engineering assessment was therefore required to establish whether the proposed rerouting was technically feasible.
Client Requirement
The operator's engineering contractor required a process engineering study to confirm the feasibility of the proposal.
SAH Scope of Work
SAH Process Consultants carried out a process engineering feasibility assessment covering:
- Process calculations to establish the feasibility of the proposed rerouting.
- Review of available operational data and existing system performance.
- Assessment of hydrocyclone performance under the proposed increased/revised reject oil back-pressure conditions.
- Assessment of the pressure differential ratio control valve and its ability to operate under the revised conditions.
- Development of technical recommendations necessary to ensure the feasibility of the proposed modification.
- Development of a process engineering report documenting the assessment.
Outcome & Value
The SAH study provided the engineering contractor and operator with the technical basis required to proceed with the proposed hydrocyclone reject rerouting.
The feasibility of the modification was confirmed, allowing the project to progress to the next phase of engineering with a clear understanding of the process requirements and recommendations.
Key Value Delivered
Brownfield Modification • Process Engineering Study • Hydrocyclone Performance Assessment • Hydraulic Assessment • Control Valve Review • Engineering Feasibility • Technical Recommendations
Settle-Out Pressure Assessment
Service:
Process Safety Engineering / Process Studies
Key Capability:
Settle-Out Pressure Assessment, Pressure Protection & Trip Set Point Optimisation
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Project Background
An operator required an export compressor settle-out pressure calculation to be carried out for new operating conditions. The assessment addressed potential check valve leakage and the risk of overpressurising the upstream dehydration system.
Client Requirement
The engineering contractor, acting on behalf of the End Client, engaged SAH to carry out the settle-out pressure assessment, optimise the high-pressure trip set points and develop recommendations to ensure settle-out pressures remained within the dehydration system design pressure.
SAH Approach
SAH provided a team of experienced process engineers and worked closely with the End Client to confirm the calculation basis, review the results and discuss the optimisation and resulting recommendations.
SAH Scope of Work
Carried out settle-out pressure calculations for revised operating conditions.
Optimised high-pressure trip set points to maintain pressures within system design limits.
Provided a set of possible trip set point values enabling the operator to configure the high-pressure trips and ensure the dehydration system remained within its design limits.
Key Value Delivered
Process Studies • Engineering Calculations & Optimisation • Technical Recommendations • Experienced Engineering Team • Client & Contractor Support
Installation of Power Generators on North Sea Platform
Service:
Process Engineering / Brownfield Engineering
Key Capability:
P&ID Development, Valve Sizing & Safeguarding
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Installation of backup power generators on an offshore North Sea platform.
A North Sea oil & gas operator commissioned an EPC contractor to install backup power generators on an existing offshore platform following the unavailability of one of the platform's main generators.
Client Requirement
The EPC contractor required experienced process engineering support as part of its multidisciplinary team. SAH provided Lead Process Engineering support through FEED and detailed design.
SAH Scope of Work
- P&ID development
- Sizing of manual control valves for fuel supply to individual generator tanks.
- Development of the process safeguarding philosophy.
- Participation in P&ID review sessions and close-out of actions.
- Development of operating procedures.
- General process engineering support and multidisciplinary coordination.
SAH Solution
SAH provided experienced Lead Process Engineering support throughout FEED and detailed design, developing the process design in accordance with project requirements and good engineering practice. SAH worked closely with the wider multidisciplinary team to progress the design, resolve review comments and close out process engineering actions.
Outcome & Value
SAH delivered the required process engineering scope in line with the project schedule, enabling the EPC contractor to progress and deliver the engineering package in accordance with the End Client's technical and project requirements.
Key Value Delivered
Lead Process Engineering • FEED & Detailed Design • Brownfield Engineering • P&ID Development • Valve Sizing • Safeguarding • Operating Procedures
Selected Project Experience
SAH's project experience includes North Sea developments and EPC contracts, with Lead Process Engineering responsibilities covering FEED and detailed design.
PROJECT / END CLIENT
SAH ROLE
PROJECT PHASE
PROJECT DESCRIPTION
Nexen, Ithaca Energy & Repsol Sinopec UK
Lead Process Engineering Services
CONCEPT, FEED & DETAILED DESIGN
epc contRacts FOR OFFSHORE AND ONSHORE FACILITIES
Buzzard Phase 2 PROJECT – Nexen
Lead Process Engineering Services
FEED & Detailed Design
SUBSEA TIE BACK WITH INSTALLATION OF NEW MODULE
Abigail over FPF-1 – Ithaca Energy
Lead Process Engineering Services
FEED & Detailed Design
SUBSEA TIE BACK
PROCESS ENGINEERING SUPPORT TO OPERATIONS
North Sea & International Operations Support
CANADIAN NATURAL RESOURCES
Process engineering support to North Sea and West Africa operations, including troubleshooting, engineering assessments and operational support.
REPSOL SINOPEC UK
Process engineering and technical support to North Sea operations.
EXPERIENCE BY CAPABILITY
Engineering Expertise Across the Project Lifecycle
01 — Process Engineering Studies
Experience in feasibility studies, evaluation of
process modifications and process optimisation
studies to support engineering decisions and
improve facility performance.
03 — Process Design & Engineering
Process engineering for brownfield modifications, including equipment replacement, piping reroutes, system modifications, debottlenecking and integration with existing facilities.
05 — Lead Process Engineering
Lead Process Engineer responsibilities on
important North Sea developments and EPC
projects, including coordination of process
engineering activities, technical decision-
making, design reviews, client and contractor
interfaces, and delivery of process engineering
work packages.
02 — Concept Studies, FEED & Detailed Design
Experience in concept development, and FEED
through to detailed process engineering for oil & gas projects and facility modifications.
04 — Brownfield Modifications
Process engineering for brownfield
modifications, including subsea tie backs,
equipment replacement and plant changes.
06 — Process safety
HAZOP / SIL support, relief, blowdown and flare system assessments.
Let’s Discuss Your Project
Talk to SAH about your process engineering requirements and how we can support your project