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COโ‚‚ Storage

Permanent COโ‚‚ Storage โ€” India's Geological Endowment

Captured COโ‚‚ must be permanently stored โ€” deep underground, offshore, or mineralised into rock. India possesses world-class geological assets for COโ‚‚ storage: deep saline aquifers, depleted oil and gas fields, offshore sedimentary basins, and the 500,000 kmยฒ Deccan Traps basalt province.

Why Storage Matters

The Final Step โ€” Making Carbon Capture Permanent

Capture without storage is chemistry. Capture with storage is climate action.

Carbon capture removes COโ‚‚ from industrial flue gas or the atmosphere โ€” but the captured COโ‚‚ must go somewhere permanently. Without a credible, safe, and verifiable storage pathway, CCUS projects cannot receive carbon credits, satisfy CBAM documentation requirements, attract DFI financing, or deliver the climate outcomes that justify their capital cost. Storage is not the final detail of a CCUS project โ€” it is the foundation on which every other element depends.

COโ‚‚ can be stored in three principal ways: geological storage in porous rock formations (saline aquifers or depleted reservoirs) at depths where COโ‚‚ is in supercritical phase and trapped by cap rock; mineralisation in reactive basalt formations where COโ‚‚ reacts to form solid carbonate minerals permanently; or utilisation โ€” using COโ‚‚ as a feedstock for products like urea, methanol, or enhanced concrete, where the COโ‚‚ is incorporated into long-lived materials.

India's geological storage endowment is substantial but incompletely characterised. The Geological Survey of India and ONGC have significant subsurface data from oil and gas exploration, coal seam studies, and mineral surveys โ€” but a systematic COโ‚‚ storage atlas covering India's full geological potential has not yet been compiled. NCM is working with GSI and the Ministry of Earth Sciences to develop this atlas, which will form the foundation for India's national CCUS infrastructure planning.

800+ GT

Estimated COโ‚‚ storage potential in India's saline aquifers โ€” orders of magnitude above capture needs

500,000 kmยฒ

Deccan Traps basalt province โ€” world-class mineralisation storage asset

95%

COโ‚‚ mineralisation completeness in basalt within 2 years โ€” proven at CarbFix, Iceland

1,000+

Years of geological storage security in properly selected and monitored saline aquifers

Storage Pathways

India's Three Principal COโ‚‚ Storage Options

Each pathway has different geological requirements, cost profiles, permanence characteristics, and regulatory frameworks. NCM evaluates all three for every client engagement and identifies the optimal storage solution for each project's location, scale, and timeline.

๐Ÿ”๏ธ

Onshore Geological Storage

Deep saline aquifers, depleted oil and gas fields, and coal seams beneath India's major industrial zones. The Gondwana sedimentary basin, Cambay Basin, and Krishna-Godavari Basin contain significant onshore storage potential co-located with India's largest emission clusters.

Explore Onshore Storage โ†’
๐ŸŒŠ

Offshore Geological Storage

Depleted offshore oil and gas reservoirs and deep saline aquifers in the Arabian Sea, Bay of Bengal, and the Krishna-Godavari offshore basin. Offshore storage offers high capacity and distance from populated areas โ€” with regulatory frameworks drawing on Norway's North Sea and Australia's OPGGS Act models.

Explore Offshore Storage โ†’
๐Ÿชจ

Basalt Mineralisation

COโ‚‚ injected into India's Deccan Traps reacts with basalt minerals to form permanent solid carbonates within 1โ€“2 years โ€” the safest and most permanent storage pathway available. Co-located with Maharashtra and Gujarat's industrial zones. Proven at CarbFix in Iceland.

Explore Basalt Mineralisation โ†’
India's Storage Atlas

Mapping India's COโ‚‚ Storage Resource โ€” The Foundation of National CCUS

Every nation that has successfully deployed CCUS at scale began with a national COโ‚‚ storage atlas โ€” a systematic geological characterisation of storage capacity, formation quality, and infrastructure co-location potential. Australia's COโ‚‚CRC national storage assessment, Norway's COโ‚‚ Storage Atlas for the Norwegian Continental Shelf, and the UK's North Sea Transition Authority storage atlas all served as the planning foundations for their respective CCUS programmes.

India does not yet have an equivalent document โ€” though the data needed to compile it exists within GSI, ONGC, Oil India, and MECL. NCM is leading the first systematic effort to collate and interpret this data into a COโ‚‚ Storage Atlas for India โ€” covering onshore sedimentary basins, offshore formations, and the Deccan Traps basalt province. The atlas will rank storage formations by estimated capacity, injectivity, seal integrity, and proximity to major emission clusters โ€” giving project developers, financiers, and regulators the geographic foundation for CCUS infrastructure planning.

The atlas development is structured to inform three decisions: where to site COโ‚‚ transport pipelines to minimise cost and maximise storage access; which storage formations should be prioritised for detailed appraisal and pilot injection; and what regulatory framework is required for each storage type and jurisdiction. NCM is collaborating with the COโ‚‚CRC in Australia โ€” which ran Australia's national storage programme โ€” to apply Australian atlas methodology to India's geological context.

Gondwana Basin โ€” Central India
Sedimentary basin covering MP, Chhattisgarh, Jharkhand, and Odisha โ€” overlying India's coal belt and co-located with steel, cement, and power clusters. Preliminary saline aquifer potential assessment underway by NCM.
Cambay Basin โ€” Gujarat
Well-characterised sedimentary basin with significant data from ONGC and GSPC oil and gas operations. Depleted reservoirs and deep saline aquifers. Co-located with Gujarat's chemicals, refining, and power clusters.
Krishna-Godavari Basin โ€” AP/Offshore
India's most prolific offshore sedimentary basin. Significant depleted reservoir and saline aquifer storage potential. ONGC and Reliance KG-D6 data provides subsurface characterisation foundation.
Deccan Traps โ€” Maharashtra/Gujarat
500,000 kmยฒ basalt province. Mineralisation storage โ€” COโ‚‚ reacts to solid carbonates in 1โ€“2 years. Co-located with largest industrial emission clusters. NCM priority characterisation programme underway.
Mumbai Offshore โ€” Arabian Sea
ONGC Mumbai High and surrounding deepwater blocks. Depleted carbonate reservoir storage potential. High capacity, offshore distance from population. Regulatory framework development required.
International Storage Frameworks

World's Best Storage Practice โ€” Applied to India

NCM draws on the three most advanced national COโ‚‚ storage programmes in the world to inform India's storage appraisal, regulation, and long-term monitoring frameworks.

๐Ÿ‡ฆ๐Ÿ‡บ
Australia โ€” COโ‚‚CRC & OPGGS Act
The world's most comprehensive COโ‚‚ storage research programme (COโ‚‚CRC Otway Basin) and storage regulatory framework (OPGGS Act). 20+ years of injection, monitoring, and well integrity data directly applied by NCM to Indian storage appraisal methodology.
๐Ÿ‡ณ๐Ÿ‡ด
Norway โ€” Northern Lights & Sleipner
28 years of Sleipner offshore saline aquifer monitoring โ€” the world's longest CCUS operational dataset. Northern Lights open-access offshore storage infrastructure provides the commercial and regulatory model for India's future shared offshore COโ‚‚ storage network.
๐Ÿ‡ฌ๐Ÿ‡ง
UK โ€” North Sea Transition Authority
NSTA's COโ‚‚ storage licensing regime and the UK Storage Appraisal Project (UKSAP) provide the most recent example of systematic national storage characterisation โ€” applicable to India's GSI-led atlas development programme.
๐Ÿ‡ฉ๐Ÿ‡ฐ
Denmark โ€” Greensand Offshore
The Greensand project in the Danish North Sea is the world's first cross-border COโ‚‚ transport and storage project โ€” COโ‚‚ shipped from Belgium for injection off Denmark. The cross-border model and its regulatory framework are relevant to India's offshore storage development.
๐Ÿ‡ฎ๐Ÿ‡ธ
Iceland โ€” CarbFix Basalt
The world's proof of concept for basalt COโ‚‚ mineralisation. 95%+ mineralisation in under 2 years. Iceland's detailed geochemical monitoring methodology is directly applied to NCM's Deccan Traps characterisation programme.
๐Ÿ‡บ๐Ÿ‡ธ
USA โ€” DOE CarbonSAFE
The US Department of Energy's CarbonSAFE programme โ€” systematic storage characterisation and permitting for large-scale saline aquifer storage โ€” provides the methodology framework for NCM's onshore saline aquifer appraisal programme in India.
Storage Regulatory Framework

Building India's COโ‚‚ Storage Licensing Regime

India currently has no specific COโ‚‚ geological storage legislation. Onshore injection falls under the jurisdiction of the Central Ground Water Authority (CGWA) and state pollution control boards for environmental approval, but there is no dedicated storage exploration permit, injection licence, or post-closure liability framework. This regulatory gap is one of the primary barriers to CCUS project development โ€” lenders will not finance projects without a clear legal framework governing the storage component.

NCM is working with NITI Aayog, the Ministry of Petroleum and Natural Gas, DGH, and MoEFCC to design India's COโ‚‚ storage regulatory framework โ€” drawing directly on Australia's OPGGS Act, Norway's COโ‚‚ Storage Directive, and the UK's Energy Act 2023 as reference models. The framework being developed covers four key elements: exploration and appraisal permits; injection and operation licences; monitoring, verification, and reporting (MVR) obligations; and post-closure long-term stewardship and liability transfer to the state.

The regulatory development timeline is critical โ€” framework legislation typically takes 3โ€“5 years from initiation to operability, and India's first commercial CCUS projects will need storage permits within this timeframe. NCM advocates for an interim permitting pathway โ€” using existing environmental clearance and petroleum concession frameworks with CCUS-specific conditions โ€” to enable first-mover projects to proceed while comprehensive legislation is developed.

NCM Storage Services

How NCM Supports Storage Development

  • Storage site screening โ€” geological data review, formation ranking, and co-location assessment
  • Storage appraisal studies โ€” subsurface characterisation, injectivity modelling, and capacity estimation
  • Storage permit applications โ€” DGH, CGWA, and MoEFCC submission package development
  • Monitoring, Verification & Reporting (MVR) plan design โ€” seismic, geochemical, and wellbore monitoring
  • Post-injection site care framework โ€” long-term monitoring obligations and liability transfer structuring
  • COโ‚‚ storage atlas contribution โ€” data provision and formation ranking for national atlas development

Ready to Work With India's Leading CCUS Practice?

Whether you are a government body seeking policy advice, an industrial company facing CBAM exposure, or an investor seeking CCUS project opportunities โ€” our team is ready to engage.