Reliability Support

Operations & Maintenance

Data Management Support Services for Operations and Maintenance for Shell

Our services to Shell included:

Computerized Maintenance Management System (CMMS)

  • Physical Asset Verifications, development of Asset Register/facility data for loading into SAP.
  • Identification of Safety Critical Elements (SCE).
  • Maintenance Operations Strategies, and Maintenance Matrix development for Preventive Maintenance (PM) Jobs.
  • Identification of critical spares, and development of Spare Parts Management Systems indicating required spares, quantity available and cost.

Corrosion Management System (CMS)

  • Risk Based Inspection Report (RBI).
  • Corrosion Management Drawings (CMDs).
  • Populated Data loading Utilities (DLUs).
  • Intelligent Computer Aided Drawings (ICAD).
  • Baseline Data in system loadable format.

Operability and Maintainability Studies-Sea Eagle & Bonga


During this project, Nexus Alliance:

  • Identified equipment that have no redundancy and equipment that have flawed redundancy and developed appropriate and relevant maintenance plans.
  • Identified and recommended remedies for design anomalies that impact on maintainability of assets.
  • Reviewed and identified maintenance strategies that require total plant shutdown. Assessed if such strategies are relevant or if alternative strategies are required.
  • Quantify the impact of deferment if shut down for maintenance.
  • Reviewed existing maintenance strategies and rationalized the value of such strategies and recommend changes.
  • Recommended industry best practices to maximizing availability and reliability at a lower cost.

Maintenance Integrity & Execution (MIE) Training & Implementation Support


  • Nexus has provided Maintenance Integrity and Execution( MIE) Training and Implementation/Support for Shell Nigeria (SPDC and SNEPCO).
  • Nexus delivered the Shell Global Process Guide training/Coaching for Work Preparation, Scheduling & Execution Operation Excellence (OE) for the East and West facilities.

Consultancy Services for Relentless Production Improvement (RPI)

Our deliverables under this service include:

  • Implementation of standardized work in line with the RPI process guide.
  • Work with field and office supervisors to develop a structured day program.
  • Coach field supervisors on data collection, reporting and analysis of first line maintenance logbooks with the aim of identifying defects and eliminating before they cause major failures/deferments.
  • Conduct kaizen workshops with field staff and handhold SPDC staff to achieve 6-sigma certification.
  • Set up maintenance consumable stores /management systems and Kanban systems for reordering consumables.

Facility Turnaround Shutdown Optimization (TARS-OP) & Assistance programs


  • Nexus Alliance conducted Turnaround/Shutdown studies for two SNEPCO FPSOs – Bonga and Sea Eagle.
  • The Nexus Turnaround/Shutdown Optimization (TARS-OP) program revealed inefficiencies and opportunities for improved work force productivity.
  • The program also helped SNEPCO to identify short and long term shutdown cost improvement opportunities as well as opportunities for reduction in shutdown duration.
  • This program has become part of SNEPCO’s continuous improvement framework and provides a baseline for future comparisons.

Reliability, Availability, Maintenance & Safety (RAMS) Consultancy Services

The scope of our consultancy services include:

  • Provision of independent assessments of systems/equipment on Bonga and EA assets for their maintainability without a system or plant shutdown.
  • Identification of systems and equipment that have no redundancy for routine maintenance.
  • Identification of maintenance plans and items from SAP that requires unit/plant shutdown with their expected deferment value in boe.
  • Suggest solutions to such systems/equipment for further engineering to enable doing maintenance without a system or plant shutdown.

Provision of Reliability Engineers and other specialist manpower to support SPDC’s flexible resourcing needs.


  • Nexus proposed a model to deliver specialist manpower (expatriate and local) to support SPDC’s capacity planning in their flexible operating conditions.
  • The success of this model is enabled by our ability to train, track and deliver significant numbers of potential candidates who have been certified by our training programs and expert in-house capacity.
  • Nexus believes that this same model will bring tremendous value to NLNG’s operations by supporting its maintenance reliability systems.

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Nexus Alliance Limited (Nexus) is a fully Nigerian Owned Company with capabilities in Training and Technology Services for the Oil and Gas, Petrochemical, Energy and Process industries. Nexus was formed in 1998 with a vision of bridging the gap between the skilled manpower needs of Multi-national Corporations and the out put from the Nigerian educational system.