Acceleware Provides RF XL Pilot Update

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Acceleware Limited
Acceleware Limited

Acceleware Limited

E-house at Acceleware's RF XL Commercial-Scale Pilot Test at Marwayne, AB. July 2023
E-house at Acceleware's RF XL Commercial-Scale Pilot Test at Marwayne, AB. July 2023

CALGARY, Alberta, March 07, 2024 (GLOBE NEWSWIRE) -- Acceleware Ltd. (“Acceleware” or the “Company”) (TSX-V: AXE), a leading innovator of transformative technologies targeting the decarbonization of industrial heating, provides an update regarding its commercial-scale RF XL pilot project at Marwayne, Alberta (the “Pilot”).

Previously announced in the third quarter 2023 financial and operating results on November 23, 2023, Acceleware encountered subsurface challenges in redeploying upgraded components during the RF XL heating well workover at the Pilot. As a result, Acceleware paused the workover to review Pilot performance data, continue inspection of the heating well, and to further consider solutions to the challenges encountered in the workover program. In consultation with industry partners, options to resume testing were developed, discussed, and finalized. It was determined that the most practical path forward involves a redeployment of all subsurface components incorporating the multiple improvements and upgrades that Acceleware has made to the RF XL downhole system. Acceleware is actively sourcing an additional $5 million of funding to complete the redeployment. The redeployment is expected to enable higher power to be injected into the reservoir for a sustained period in a second phase of heating.

The Pilot performance data confirms the successful operation of the Clean Tech Inverter (“CTI”), which is the radio frequency (“RF”) ‘engine’ critical to Pilot success. A primary objective of the Pilot was to demonstrate the operation of the CTI and its effectiveness in transmitting temperature downhole to increase oil production. Other significant milestones achieved include:

  • Acceleware drilled and completed the first of its kind multilateral heating well and associated production well in a previously produced heavy oil reservoir.

  • The RF XL system (including the CTI) demonstrated unprecedented performance with the longest continuous run (142 days) and highest power (up to 250 kW) of any RF heating system.

  • Maximum design current was transmitted from the CTI, through the proprietary transmission line, and radiated to the reservoir.

  • Increased reservoir temperature and oil production were observed in the Pilot.

  • The temperature profile and oil production increase matched simulated predictions given the levels of power radiated.

Additionally, critical components of the proprietary RF XL subsurface technology functioned as designed and expected.

The workover was undertaken to address a distributed temperature sensing system (“DTS”) failure, during which time the engineering team took the opportunity to examine downhole components. As the workover progressed, an issue was discovered with the downhole RF XL system resulting from water ingress into the RF transmission line during deployment and operation of the Pilot. Some moisture had been anticipated and was initially addressed via the Pilot’s nitrogen purge and pressurization system which is designed to remove and prevent the return of fluids. Further analysis following the workover suggests that this system was not able to manage the moisture levels encountered, resulting in degradation of some proprietary downhole components. For clarity, the moisture ingress issue pertained to tubing connections, not to core RF XL technology nor RF XL electronics. Acceleware has recreated the problem in lab tests and has designed and tested a solution. The damage is believed to be the primary impediment to Acceleware’s ability to achieve full power in the first phase of heating at the Pilot. As mentioned on November 22, 2023, Acceleware planned to develop several solutions to this challenge and proceed with the option with the highest probability of success and the lowest risk. The Acceleware team, in consultation with industry partners, has developed what is believed to be a permanent, resilient solution for the issue.