We’re drilling our final 8 ½” section

Having successfully run and cemented casing in the 12¼” section of EG-1, we’re now into the final 8 ½” open hole section. The bits are grinding the granite to powder – as this cuttings sample from 4050m shows. Current depth is 4324m MD and we expect to intersect Great Crosscourse fault soon. The Eden Project […]

Things are hotting up as drilling passes halfway mark

We’re now well past halfway towards our target depth of 4.5 kilometres,  and with drilling continuing at around 70 metres a day, we are optimistic we’ll reach our target depth in the next two-and-a-half months.  We have also been greatly encouraged by the temperatures being recorded as drilling goes deeper, and are confident that when […]

‘Drilling break’ a positive sign for project

Last week we encountered a ‘drilling break’ at 3949m. This is a great sign for the future of our project – the increased ROP (rate of penetration) and losses of drilling muds into the formation are indicators of a zone of natural fracturing and permeability in the rock. Heat and permeability are the prerequisites for […]

Drilling reaches 3755m

We’ve now drilled to 3755m MD so are approaching the end of the 12¼“ section of EG-1. At 4000m, we’ll be tripping out of the hole to run and cement casing (in other words to line this section), before embarking on the final section of the well, and the last part of our journey towards […]

Over 2 miles down!

We’ve now drilled to 3450m MD. That’s over 2 miles, a distance it’d take about 45 minutes to walk at an average pace. Or the equivalent of about 11 Shard buildings or Eiffel Towers stacked one on top of another! Our journey this week has highlighted the beauty of the micro world. These perfectly formed […]

Geology helping drilling ahead

We’ve passed another milestone on our journey to the centre of the earth beneath the Eden Project – on Monday we drilled past the 2000m MD mark! As of 6am today, we’ve drilled to 2293m MD. The higher ROP (rate of penetration) achieved recently is due to the geology we’ve encountered: we’ve been able to […]

Community projects benefit from Eden Geothermal grants

Nine groups based near the Eden Project have been awarded grants from the Eden Geothermal Community Fund for projects that benefit local people and improve the environment or community facilities. The £20,000 fund was launched in November last year, with applications received for a wide variety of projects across Treverbyn, Carlyon, St Blaise and Luxulyan […]

Project update 21st July 2021: faults, caves and ‘kicking off’

Casing and cementing our 17 ½“ well section went smoothly, and we’re now drilling the longest section of the well – the 12 ¼” diameter section. At 1706m MD, we “kicked off”: that is, we started drilling directionally, steering east on a trajectory designed to intersect with the Great Crosscourse fault. Now we’re in the […]