- This application covers natural gas wellhead monitoring
- transmitting gas flow and temperature data to a control center over cellular communications from sites that are typically remote and unstaffed
Case Studies
Smart Natural Gas Wellhead Acquisition
26 Jun 2026Cellular smart remote I/O for wellhead monitoring, event-driven logging, VPN communication, and SCADA updates.
Overview
ChallengesThe main challenges were
- Every server request to a field site can create communication cost on a cellular data plan, and cabinets at wellhead sites had limited space for a separate cellular router, data logger, and remote I/O device all installed individually
- The system also needed hazardous-area certification and wide-temperature operation given the wellhead environment
ObjectivesThe system needed to
- Use cellular communication with VPN security
- event-driven data acquisition rather than constant polling
- local storage for resilience
- alert management
- retention of the last counter value after a power loss
Solution DeliveredThe solution included
- A smart remote I/O unit acted as a 4-in-1 device — acquisition unit, Modbus gateway, unmanaged switch, and data logger — consolidating what would otherwise be four separate boxes into the space-constrained wellhead cabinet
- It pushed active messages to SCADA only when meaningful events occurred, rather than on a fixed polling schedule, which directly cut the cellular data cost of constant server requests
- If cellular communication failed, the unit stored data locally so nothing was lost during an outage, and it retained the last counter value through a power loss so gas-flow totals didn't reset or need manual reconciliation after every power interruption
Products referenced in the source material include
Conclusion
A combination of space saving, cellular cost reduction, local data protection, and wellhead monitoring in one Oil & Gas edge application.
