In the initial stages of the project, INTECH adopted a structured architecture built around the Purdue Model, ensuring a clear separation between field devices, operational systems, and enterprise-level access. This layered approach addressed the client’s requirements for secure connectivity, centralized monitoring, and controlled access to operational data while maintaining the integrity of critical OT assets.

At the field level, production data was acquired through MicroLogix PLCs and transmitted via GSM communication gateways. An IDMZ was established as a secure intermediary between the OT and enterprise environments. Within the IDMZ, an OPC aggregation layer consolidated data from remote well sites and securely distributed it to centralized monitoring and cloud-based applications.

The architecture was developed in alignment with ISA-62443 principles, incorporating network segmentation, VPN-based communications, and controlled data flows between system layers. By integrating SCADA, historical data logging, and cloud connectivity within a structured OT architecture, INTECH established a centralized environment for secure production data acquisition, monitoring, and accessibility across the well network.

During the design phase, INTECH was tasked with delivering comprehensive design packages across all disciplines, supported by critical studies such as HAZOP, structural calculations, certifications, and reliability data. The process was challenged by documentation gaps arising from multi-stakeholder inputs and evolving client feedback, which had the potential to stall review cycles, extend approval timelines, and create risks of misalignment with project requirements.

Solution

To prevent schedule slippage and unnecessary rework, INTECH’s engineering team took full ownership of the process. A structured Internal Disciplinary Check (IDC) framework was implemented, with in-house experts reviewing, correcting, and updating vendor submissions to ensure technical accuracy and compliance with client and international standards. This proactive approach kept the project aligned, shortened approval cycles, reduced risks of rework, and reinforced client confidence.

The client required centralized access to production data, flow computer reports, and remote engineering capabilities across geographically dispersed well sites. Providing this level of accessibility without introducing unnecessary cybersecurity risks required careful consideration of system architecture, data flows, and user access pathways.

Solution

INTECH implemented a layered OT architecture incorporating network segmentation, controlled communications, and an OPC aggregation layer within the IDMZ. This approach enabled secure access to operational data and remote assets while preserving separation between field devices, control systems, centralized monitoring platforms, and enterprise-level applications.

Solution

INTECH performed a systematic review of the communication and monitoring architecture, including VPN connectivity, network infrastructure, and application-level diagnostics. The investigation identified an expired software license that was preventing historical data from being recorded despite the continued availability of real-time data. Following license remediation and service restoration, historical data logging resumed normal operation.

Solution

INTECH proactively engaged suppliers and logistics providers to identify alternative shipping arrangements for affected materials. Where required, critical equipment was expedited through alternative transportation methods, including air freight, allowing the project team to maintain project momentum and minimize schedule impacts despite ongoing supply chain disruptions.

Solution

INTECH coordinated closely with the client’s security team to facilitate the secure transportation of materials across the field. Risk mitigation measures, including insurance coverage for all project materials during transit, were implemented to protect critical equipment.

Really appreciate your efforts in keeping in view project commissioning, shutdown, and SAT procedures, along with close coordination with the production team for a smooth transition. Keep it up.

Leveraging over three decades of experience in automation, digitalization, and OT cybersecurity, INTECH worked closely with the client to deliver a field-wide digitalization solution that integrated instrumentation, communications, SCADA, networking, and cybersecurity into a unified architecture. The project delivered lasting operational value by providing secure access to critical production data, strengthening operational awareness, and enhancing the client’s ability to manage field operations with greater efficiency, reliability, and confidence. This outcome demonstrates the value of strategic digitalization in creating more connected, secure, and resilient production assets while establishing a strong foundation for future digital oil field initiatives.