SERVICE 03Storage as a serviceSHEET 03 / 05

You emit it.
We keep it.

Once a prospect is proven we build the site and operate it. You are not buying a hole in the ground, you are buying a tonne that leaves your books and stays gone, with the measurement to show it.

EMITTER CAPTURE 1 2 OVERBURDEN MONITORING RESERVOIR SEAL FORMATION SALINE AQUIFER BASEMENT > 1000 m 1 INJECTION WELL PERFORATED ACROSS THE STORAGE INTERVAL ONLY 2 MONITORING WELL COMPLETED ABOVE THE SEAL, NEVER INTO STORAGE SCHEMATIC, NOT TO SCALE
Fig. 12 · Storage complex, axonometric cutawayNot to scale

Four mechanisms, working at once

01

Structural

A sealing rock above the reservoir stops the CO2 from moving upwards at all.

02

Capillary

Surface tension holds it in the small pores it has spread into, even if the rock is tilted.

03

Dissolution

It dissolves into the brine, becomes denser than the water around it, and sinks.

04

Mineralization

Over time it reacts with the rock and becomes a mineral, which is the end of the story.

Close-up of a fine grained sandstone: small tan and grey sand grains packed together, with dark specks and tiny gaps between them
Fig. 13 · Fine sandstone, up closePhoto

Photo: Alan Hughes · CC BY-SA 2.0 · cropped

BEFORE INJECTION AFTER INJECTION SEAL SAND GRAIN BRINE CO₂
Fig. 14 · Where the CO2 is heldSchematic
A freshly painted grey wellhead: a steel christmas tree of valves with a pressure gauge, on a concrete slab at the edge of a farm field
Fig. 15 · Wellhead footprintPhoto

Photo: ReAl · CC BY-SA 3.0

Aerial view of a finished storage site: a small gravel pad with a single wellhead, surrounded by forest
A finished site, from the airReference imagery
01 CAPTURE AT THE PLANT, WHERE THE CO₂ IS MADE 02 TRANSPORT SHORT, BECAUSE STORAGE IS NEXT DOOR ALL OF IT, UNDERGROUND OVERBURDEN SEAL FORMATION SALINE AQUIFER · STORAGE COMPLEX BASEMENT 03 STORAGE PERMANENT AND MEASURED > 1000 m SCHEMATIC, NOT TO SCALE · CAPTURE HAPPENS AT THE PLANT, STORAGE BEGINS AT THE FENCE
Capture, a short move, and the rockNot to scale

Storage next door, not a hub on another coast.

More than 90% of the CCUS chain is expected to be storage rather than use. Building it beside the emitter removes the transport, which is the part that carries both the cost and the emissions nobody mentions.

01 THE HUB MODEL CAPTURE, THEN MOVE THE TONNE REMOTE STORAGE THOUSANDS OF KILOMETRES 02 NEAR-FACTORY STORAGE MIN FOOTPRINT · MIN IMPACT CAPTURE, THEN STORE IN THE VICINITY A FEW METRES RETHINKING CARBON STORAGE FLIPPING THE MODEL SAME TONNE ON BOTH ROUTES DISTANCES AND SIZES NOT TO SCALE
Fig. 02 · The same tonne, two journeysNot to scale
NEXTThe rest of what we do04 SHEETS
ScreeningScreening ExplorationExploration MonitoringMonitoring and safety Negative emissionsNegative emissions
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