Norwest Energy Prepares for Well Test at Arrowsmith-2 Well in Perth Basin
Norwest Energy NL provided Friday an update on the final phase of test work at the Arrowsmith-2 well in EP413 in the onshore Perth Basin, Western Australia.
As announced in the Quarterly Report released to the ASX Jan. 31, field activities have re-commenced at the Arrowsmith-2 well in the onshore Perth Basin to complete the work-over and final phase of testing.
The Arrowsmith-2 well was re-entered Jan. 29, with the 2.375 inch completion tubing string successfully removed from the wellbore without incident. The faulty gas lift mandrel that had created an obstruction in the wellbore has also been removed, with a replacement mandrel not required in order to complete the final evaluation phase of flow back testing. The tubing string was then run back into the well to meet the packer at 8,677 feet (2,645 meters) depth.
With these tasks successfully completed, preparations are underway to conduct a 14-day well test. Norwest intends to conduct multiple runs in the well with a Production Logging Tool (PLT), which will evaluate the contribution of gas and fluids from each of the perforated target intervals.
Testing with the PLT will allow Norwest to gain better knowledge of the flow rate contributions from each zone towards the total commingled flow rate readings. This data will allow Norwest to conclude its evaluation program at Arrowsmith-2. This evaluation program will be crucial in enhancing Norwest’s ability to plan for drilling and hydraulic stimulation of its first horizontal pilot well, Arrowsmith‐3.
The four target intervals to be tested with the PLT are the High Cliff Sandstone, the Irwin River Coal Measures, and the Carynginia Formation (which underwent two separate hydraulic fracturing intervals).
Norwest CEO Peter Munachen said it was pleasing that progress in the final phase of test work at Arrowsmith-2 was proceeding well.
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