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Lufkin Automation has chosen to to equip its SAM Well Manager product with the Westermo MRD-310 3G router, which provides a high level of connectivity and supports several mobile standards.

Lufkin Automation was formed by the merger of two companies: Delta X and Nabla.

These two companies are now part of Lufkin Automation oil field division and offer analysis, security and control solutions for rod-pumping wells.

Oil fields are often situated in remote and demanding environments where extreme variations in temperature, moisture and other environmental variables are an issue.

Installing control and monitoring systems in these environments can be difficult as oil fields often consist of hundreds of pumps spread over large geographic areas.

The Lufkin-developed SAM Well Manager is used for high-precision monitoring and control of rod-pumping wells.

The SAM Well Manager allows the operator to optimise pump performance and reliability.

Pump flow can be analysed, service and maintenance requirements are calculated before the event of mechanical failure and energy consumption is optimised.

The SAM Well Manager can be configured to stop the pumping process at low oil levels and when maintenance or service are required.

The system also creates a complete action history that can be used for further optimisation.

The SAM Well Manager is connected to the pump’s Scada system.

To remotely control the system a variety of technologies such as copper, fibre and radio links have previously been used.

Although Lufkin’s European division has further enhanced the system and new solutions using mobile networks have been developed.

Lufkin has decided to use the Westermo MRD-310 3G router in a series of pilot projects, mainly in European and Asian markets.

The MRD-310’s support for the wide variety of mobile standards allows for installations around the world.

It also supports IPSec encrypted VPN tunnels, which is a requirement for safety-critical applications that use unsecured public networks such as the internet.

The MRD-310 provides a serial interface and serial to IP conversion, which is necessary to connect to the controller.

The routers are also developed for extreme environments and can operate in temperatures from -20C to +60C.

This application is installed in a number of pilot projects to demonstrate the potential for significant cost savings.

Using high-speed uplink packet access (HSUPA), the uplink capacity is 2Mbit/s, together with the 7.2Mbit/s downlink data, making the unit suitable for high data rate applications.

The MRD-310 also provides two built-in port 10/100 Ethernet switches and an RS232, plus allows devices to connect over a vast distance.

To extend the life of legacy equipment there are a number of tools included in the MRD-310 that will ensure connectivity with PLCs and other RS232-based devices.

The unit supports both packet and circuit switched mode, serial to IP conversion, Modbus Gateway, DNP3 Level 1 Outstation and dial-up modem emulation.

Westermo Data Communications

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