Australian Sedimentary Basin Formation Water Composition for CO2 Solubility Trapping

The Variability in Formation Water Composition and its Implications for CO2 Storage Conditions dataset, hosted by the Australian Ocean Data Network, assesses conditions for CO2 solubility trapping. It compiles total dissolved solid (TDS) concentration data from over 900 wells across major Australian sedimentary basins. The study focuses on how TDS, along with pressure and temperature, controls CO2 solubility and fluid density for storage safety.

Use Cases

• Modeling CO2 solubility in formation water based on compiled TDS, pressure, and temperature data.
• Assessing the safety and long-term stability of CO2 storage sites based on regional geological properties.
• Simulating fluid advection and downward migration rates based on calculated fluid density changes.
• Evaluating the relative importance of different CO2 trapping mechanisms (structural, residual, solubility, mineral) over various timescales.

Strengths

• Data compiled from over 900 wells, providing a substantial sample size for analysis.
• Focuses on key physical variables (TDS, pressure, temperature) controlling a critical CO2 trapping mechanism.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data freshness should be verified despite a last updated date of 2026-06-05.

Provenance

Source

Australian Ocean Data Network

Collection Method

Compiled from well data.

Freshness

Last updated 2026-06-05 06:47:16.764359

Geography

Major Australian sedimentary basins