INDUSTRY NEWS
Shetland decommissioning project moves to the next level
The Dales Voe decommissioning facility in Shetland, operated by Veolia and Peterson, is one step closer to becoming a centre of innovation for recycling off shore structures from the North Sea, following the successful collapse of the Ninian North platform using explosives for the fi rst time. The structure arrived at Dales Voe
on 28 August 2020 via the Pioneering Spirit vessel operated by Allseas. Since arrival, the Veolia decommissioning team has decontaminated the
structure, removing all hazardous materials to allow for future demolition in an environmentally friendly manner. The Ninian platform is a 14,200
tonne steel structure that was delivered on eight legs each around 30m high. To signifi cantly reduce the risk to the workforce working at height, and allow for remote demolition via specialist excavators, extensive planning with key stakeholders over several months enabled the explosive collapse of the platform legs to bring the structure
DEAD OIL WELL IS BROUGHT BACK TO LIFE
Software fi rm LYTT has repurposed existing fi bre optic infrastructure to support the remediation of a shut-in well in the North Sea. The well had been shut-in for more than three years as traditional diagnostic approaches failed to identify a solution to a sustained casing pressure issue. Lilia Noble, Well Integrity Technical
Product Owner, LYTT, explains: “We used the existing fi bre optic cable installed in the well and repurposed it as a Distributed Acoustic Sensing
(DAS) array. We then analysed the DAS data, alongside time and depth series data, to produce a real-time view the operations team needed to understand fl ow through the well tubing and into the annulus. This allowed them to isolate leak points and prevent further pressure build up.” Using the insights LYTT generated, the operations team were able to develop a reliable remedial design to address multiple leak points and bring the well back online.
Rugged communications device
For workers in the oil and gas sector, choosing a communications device typically means choosing either highly functional smart devices, or rugged, big-buttoned radio devices. Motorola Solutions believes it has solved that challenge with the introduction of Evolve. Evolve is an ultra-rugged LTE
handheld device, with a large touchscreen, full multimedia capabilities and the open Android platform, and all the convenience of traditional radio, such as large physical buttons and push-
to-talk technology that makes it valuable
to workers who need instant access to their devices.
much closer to the ground. On the 5th June 2021, the platform was successfully collapsed without incident.
DRILLING PARTNERSHIP
Marine robotics company Ocean Infi nity and geotechnical drilling expert Gregg Drilling, a subsidiary of Alaska Native Corporation Sealaska, have formed a joint venture (JV) to provide geotechnical services to off shore markets in traditional and renewable energy fi eld developments and cables. The JV combines the expertise and assets of the two companies and will see Gregg Drilling mobilise its seabed drills onto the Armada fl eet of uncrewed and optionally crewed vessels ranging from 21m-78m in size. Pairing Gregg’s deep-water
geotechnical drilling capability with Ocean Infi nity’s Armada geophysical fl eet, and recently enhanced data analytics capabilities following the acquisition of MMT, will expand capabilities for both companies to complete off shore investigations globally.
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