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Artificial Lift Techbook 2018

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26 | July 2018 | hartenergy.com ARTIFICIAL LIFT: TECHNOLOGY provide a clear analysis of the reservoir, well, field and surface network. This single platform provides engineering models and predictive analytics to help operators evaluate, predict and respond to ever-changing conditions. With an enterprise-wide approach to well optimization and real-time mon- itoring, ForeSite is designed to allow clients to quickly identify, prioritize and service underper- forming wells. These features help operators to reduce production losses and downtime, while improving their bottom line. Predictions regarding artificial lift equipment are something that Rockwell demonstrated at its Auto- mation Fair in 2017. The company touted its ability to show predictive analytics on an ESP system as the data was coming in real time. Utilizing its Connective Production, Rockwell was able to pre-process and analyze the data as they came into the system, predict the equipment state of the pump downhole or its future state, and alert operations and maintenance personnel based on what kind of event was happening, be it a locked pump or maintenance issue. "Can we use AI to help us predict optimum pro- duction out of a gas well, so we don't over-produce and damage the well?" Munk asked. "Customers are also looking at better modeling—downhole, future production—as they have more accurate models they can make better decisions. Another thing I think we're going to need is high-integrity data and better communication methods at the well site. The AI will only be as good as the data provided to it. Things like MQTT [Message Queuing Telemetry Trans- port]—another buzz word around industry—will help because they provide a layer of integrity in the data that is getting to our data packages." Schlumberger sees a near-term future where inte- grating software technologies with IoT (Internet of Things) capabilities will enable automation of production enhancement. "Today, the algorithms running on these devices are relatively rudimentary, and the untapped promise for this technology will be game-changing," said Camilleri. "Prognostic health management of lift systems to predict failure—and thus avoid unwanted downtime waiting on rigs for intervention—is one such promise. Another one that is just around the corner is automated event detection and diagnostics, which will automate surveillance and thereby improve runlife and uptime in fields with a large number of artificial lift systems. The automation is based on years of development work in the area of data analytics, which provides the tools to correctly diagnose a wide range of data signatures characterizing mis-operation." Schlumberger is developing software tools for both prognostic health and automated event detection and diagnostics that will be part of the Lift IQ production life-cycle management service, which provides a range of real-time services from the very simple data visu- alization all the way to the more complex analytical tools under a single umbrella. New developments in ESPs Halliburton has focused this past year on devel- oping more reliable and efficient ESPs. The major challenges that an ESP faces in most unconven- tional wells are high temperature, sand content and corrosion. All of these issues can cause a pump to malfunction downhole, thus leaving the operator with the expensive proposition of rig-based retrieval, repair and the hit to the bottom line caused by the unplanned downtime. The company's July 2017 acquisition of Summit ESP has effectively expanded its capabilities. "With sand, one of the issues is not only erosion, but plugging the pump, especially when you have multipump shutdowns, you have fall downs," said Francisco Romero, artificial lift global business devel- opment and marketing manager at Halliburton. "At shutdown you can find that the amount of sand that you are pumping can be three, four tubings above the pump, and it will fall back to the pump. The result is when you try to restart, the pump is jammed. We developed the SandRight Solids Fallback Preventer—a new product that we introduced six months ago. The SandRight is made up of a number of directional and graduated pathways that stops that sand from flowing in reverse while providing leak-off capability, meaning that the geometry of the passageways on the tool creates a bridge for the sand that's falling down, stopping it, but also giving you an opportunity to The Lift IQ service provides access to critical data, detects events and offers quick and easy monitoring and troubleshooting. (Image courtesy of Schlumberger)

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