Remote Monitoring Takes Hold in Oil & Gas
Grant Gerke | June 16, 2017
By Grant Gerke, Contributing Editor
Digital transformation applications in 2017 are moving fast and taking diverse forms. Many industries, such as oil and gas and petrochemical, are quickly acting on better data-acquisition models so operators can move toward online condition-based monitoring for pumps and motors.
According to Brian Atkinson, a consultant with the Industry Solutions Group of Emerson Process Management (emersonprocess.com, Shakopee, MN), pumps account for an estimated 7% of maintenance costs of a plant or refinery. “While a pump failure in a refinery may only affect one part of a process,” he said, “pump failures in an oil field can shut down a well or pipeline,”
During the oil-market boon, operators took run-to-failure approaches with pumps and motors, and didn’t install cost-prohibitive wiring to monitor such units in the field. Wireless-network-standardization efforts over the last decade, however, have provided operators the ability to implement condition-monitoring strategies and avoid costly shutdowns that may seem necessary in lower-price markets.
As an example, Atkinson pointed to a white paper, titled, “Beyond Switches for Pump Monitoring,” from Emerson Automation Solutions. It details how oil and gas processing facilities can use cost-effective transmitters to provide continuous condition monitoring and a richer data set on in-the-field pumps. Among other things, it recognizes the American Petroleum Institute (API) Standard 682 that provides a roadmap for achieving continuous monitoring with IIoT-based solutions. This standard defines piping plans for pumps to assist processing facilities for the selection of the type of sensors and controls for pump auxiliary-seal flush systems.
The white paper illustrates that traditional mechanical switches provide on/off data, while transmitters can communicate a broad range of measured variables and facilitate remote configuration, calibration, and diagnostics. With the transition to transmitters in the field, management can reduce field-maintenance service trips and reallocate those services to other resources.
A prime example of the process industry’s move to continuous, remote monitoring is Pioneer Energy’s captured gas-flaring application for remote shale fields. The Lakewood, CO-based corporation (pioneerenergy.com) provides a turnkey service that captures flared gases at the field site by way of a Mobile Alkane Gas Separator (MAGS) unit that’s separate from the well-drilling application.
Oil-and-gas-shale producers have usually thought of flared gas as a waste product. Remote monitoring, though, gives them the ability to resell or use it to power drilling operations wherever they may be. In Pioneer Energy’s case, that means being able to monitor the gas-separation unit in a central control room hundreds of miles away from well sites.
Pioneer Energy still provides technician services for minor maintenance of its remote MAGS units. According to the company, it uses Opto 22’s groov mobile monitoring to provide field technicians monitoring and control onsite through mobile devices.
“Our service technicians in the oilfield have 4G AT&T tablets that link to the groov server, which is connected to the OPC server,” said Andrew Young, lead controls engineer at Pioneer Energy Services. “They can see real-time operations as they’re enroute to a site to do a service call.”
Pioneer Energy’s gas-separator service is the embodiment of a new business outcome enabled by advanced sensor networks in a legacy environment. These types of small optimization strategies have begun to take hold in the oil and gas industry, and should be the rule instead of the exception going forward. MT
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