Wilson Project Summary -9 Mar 2025 09:44
Geological Perspectivity
The Wilson River prospect’s geological setting is a key driver of its potential:
Location: Situated in the Cooper Basin, South West Queensland, Australia, a prolific hydrocarbon province with a long history of oil and gas production. Its proximity to producing fields operated by Santos-Beach (Cooper Basin JV) and Bridgeport Energy suggests a favorable petroleum system.
Structural Context: The prospect lies along a NW-SE oil migration pathway and shares structural orientation and features with nearby fields. This alignment with proven hydrocarbon migration routes increases the likelihood of trapping mechanisms being effective.
Reservoir Targets: Multiple stacked reservoir targets are identified, which enhances perspectivity by providing multiple opportunities for hydrocarbon accumulation. Stacked reservoirs reduce the risk of a single-target failure.
Seismic Mapping: The prospect is supported by a combination of 2D and 3D seismic data, which improves subsurface imaging and reduces geological uncertainty compared to relying solely on 2D data.
Resource Estimates: Prospective oil in place ranges from 8.7 MMBOE (million barrels of oil equivalent) to 37.4 MMBOE, with a mean of 21.3 MMBOE. Nearby fields have recovery factors up to 59% in prolific formations, depending on reservoir quality. Assuming a conservative recovery factor of 30–59%, recoverable resources could range from 2.6 MMBOE (low case) to 22 MMBOE (high case), with a mean of approximately 6.4–12.6 MMBOE.
Assessment: The geological setting is promising due to its location in a proven basin, structural analogy to producing fields, and multiple targets. The seismic data quality further de-risks the subsurface interpretation.
Chance of Success (CoS)
The chance of success is the probability of discovering commercially viable hydrocarbons. It depends on four key geological factors: source, reservoir, trap, and seal, plus operational execution:
Source: The Cooper Basin has well-documented source rocks (e.g., Permian coals and shales) that have generated significant hydrocarbons. The NW-SE migration pathway suggests hydrocarbons have migrated toward the prospect. High confidence.
Reservoir: Multiple stacked targets are noted, and nearby fields demonstrate producible reservoirs with recovery factors up to 59%. Moderate to high confidence.
Trap: The structural similarity to nearby fields and seismic mapping suggest a viable trap. Moderate to high confidence.
Seal: The Cooper Basin’s producing fields imply effective seals (e.g., shales or tight formations). No specific seal risks are mentioned. High confidence.