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Cuadrilla Halts Fracking at Preston New Road Site Following a Minor Seismic Event

Source: www.gulfoilandgas.com 12/11/2018, Location: Europe

Hydraulic fracturing operations at the Preston New Road site are currently paused following a minor seismic event. A number of minor seismic events were recorded in the Preston New Road area, including one of magnitude 1.5 at 11:21 today (11 December). As this event exceeded the magnitude 0.5 limit set for caution in the “traffic light system”, the operator has suspended pumping/injection activities for a minimum of 18 hours, reduced well pressure and is continuing to monitor seismicity during this pause.

During pauses, the OGA compares the location, magnitude and ground motion of these minor seismic events to the operator’s approved Hydraulic Fracture Plan (HFP).

OGA Director of Regulation, Tom Wheeler, said: “Our regulatory regime is deliberately cautious with strict controls in place to manage and monitor seismicity. This pause in operations allows us to review the event to ensure it is in line with the geological understanding set out in the HFP and that the risk of induced seismicity is being appropriately managed by the operator.

“This is the largest seismic event triggered by the Preston New Road operations to date and it may have been felt by some people close to the site. The vibrations of an event like this are similar to the vibrations caused by a lorry or a coach passing on a nearby road. The event would have needed to be more than 30 times greater for there to be even the possibility of superficial damage to property.”

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Related Categories: Formation Evaluation  General  Geological, Geophysical  Geophysical Contractors  Mud Logging  Reservoir Engineering & Recovery Methods  Seismic survey  Well Completion, Logging, Workover 

Related Articles: Formation Evaluation  General  Geological, Geophysical  Geophysical Contractors  Mud Logging  Reservoir Engineering & Recovery Methods  Seismic survey  Well Completion, Logging, Workover 


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