ADX Energy proceeds to well test in Austria

ADX Energy Ltd. will test the Welchau-1 gas exploration well in the ADX-AT-II license in Upper Austria.

The Welchau-1 gas exploration well has been drilled to a depth of 1,155 m. Minor hydrocarbon shows and fracturing patterns suggest the presence of hydrocarbons in deeper formations and are evidence of an active petroleum system at the Welchau-1 well location (OGJ Online, Mar. 11, 2024). 

Workover rig W-102 was mobilized and rigged up at location together with all auxiliary and testing equipment. The program will focus on determining reservoir fluid type, flow capacity, and reserves potential.

The planned program is to test 450 m of hydrocarbon shows starting with the two major reservoirs, the deeper Steinalm and then the shallower Reifling formation. For each test, several flow periods and shut in periods are planned to determine the pressure response with down hole gauges. Well performance will be monitored to determine the potential reservoir damage from drilling and cementing of the well. In each test the well may be acidized, if necessary, to optimize well performance. 

Data collection will include flow measurement, surface and down hole pressure measurement, as well as surface and down hole sampling. The testing program for the Steinalm formation is expected to take 6-10 weeks.

Environmental clearance from the Department of Nature Protection of the State Government of Upper Austria allows for up to 6 months of continuous (24-hr) testing operations. 

ADX Energy is operator of the ADX-AT-II license. MCF Energy Ltd. holds a 25% economic interest in the Welchau Investment Area which contains the Welchau-1 discovery and other prospects in the Northern Calcareous Alpes.