Anson Resources Ltd (ASX:ASN) has recorded increases of up to 320% in brine flow rates during additional testing of rates from recently completed exploration drilling at the Paradox Brine Project in Utah, USA.
The flow rate from Long Canyon No 2 well increased 320% to 112.5 barrels per hour, which is equivalent to a 2,700 barrel per day average with flow coming from an 18-foot interval from 6,318 feet.
Skyline Unit 1 well increased 100% to an hourly rate of 250 barrels, equivalent to a daily average of 6,000 barrels with flow from a 12-foot interval from 6,225 feet.
The increase is due to the natural clean-up of the clastic horizon following the re-entry drilling and not to any break down of the zone.
Downhole geophysical surveys have been completed with data being analysed.
This will be used in the estimation of a JORC-compliant resource.
Flow parameters determined from the downhole geophysical surveys.
The flow rates were significantly higher than Anson found during the re-entry of Cane Creek 32-1 well.
This supports Anson’s theory that the fracturing by the geological structures in the central and southern area of Anson’s claims, particularly the Roberts Rupture, will assist with brine flow without the need for extraction pumping.
Anson said this factor was significant for project economics.
The Roberts Rupture structure, which is thought to provide natural fracturing of the host rock allowing the flow of fluids, is located striking through the eastern claims.
Anson’s western claims show areas of structures similar to that near Roberts Rupture.
Plan showing Anson’s Paradox Brine project area and recorded lithium grades.
The main brine zone, Clastic Zone 31, in the project area has not been cored, but has been adequately sampled and logged.
Long Canyon No 1 Sonic Log section through Clastic Zone 31.
Brine flows have been encountered in Clastic Zone 31 over six miles north-south and eight miles east-west, and it remains to be proved if brine is present and the zone is communicable over a much larger area.