The Wilcox zone on the Winters well has demonstrated the potential to produce oil, gas and water but it is believed that the water is coming from the lower part of the perforated zone.
The company told investors the re-completion is in the upper few feet of the current Wilcox zone. The zone has demonstrated the potential to produce oil, gas and water but it is believed that the water is coming from the lower part of the perforated zone. Mosman plans to cement-squeeze the lower perforations to limit the water influx. If this is not successful, the well will be re-completed in another zone, the company said.
Meanwhile, at the Stanley-5 well, testing has been carried out on the first potential zone in the lowermost part of the well that produced mainly water with some gas at sub-economic rates from a depth of about 4,850 feet.
The well will be reperforated up-hole to a Yegua zone at a depth of about 4,800 feet. The sand has been known to produce oil in surrounding wells and Mosman expects the test will be carried out in the coming days. There are multiple potential hydrocarbon-bearing sands in this well and it is normal oilfield practice to start testing from the lowermost zone, the AIM-listed oil company explained.
There is one service rig being used on Winters-2 which will be moved to re-complete Stanley-5. Once work is complete, it can then be used on other workovers which, as previously noted, continue to be considered in order to boost production, including wells on the Stanley and Duff leases.
Read More: Mosman Oil and Gas Limited has plan to address water issues at the Winters well