Alvopetro Energy Ltd. (TSXV: ALV.V) detailed results from the first interval tested in the Recôncavo Basin, the company said April 6.

The 197(2) well, in Block 197, reached 1,669 m total depth in December 2014. It hit 78 m of continuous potential net natural gas pay. The gas has 33% water saturation and 12% average porosity. The company will separately test the productivity of three intervals.

The deepest sandstone interval, between 1,460 m and 1,469 m, was perforated and completed to test fluid and reservoir pressure at the gas column’s lowest point. The second intervals expected to be tested are Alvopetro’s primary target, containing highest-quality reservoirs with 10.5 m of potential net pay and 13.6% average porosity.

The second intervals range from 1,371 m and 1,376 m and 1,384 m and 1,389 m. The third interval to be tested will assess a sandstone reservoir forming part of the column at 1,322 m to 1,327 m. It averages 10.4% porosity in 2.2 m of net pay and has no stratigraphic equivalent in the offset well.

The well will be shut in to measure reservoir pressure and obtain pressure buildup data to undertake a pressure transient analysis, which will allow Alvopetro to predict productivity of this first zone on a stimulated basis.

The company received surface production equipment for long-term production testing of intervals, pending approval from the National Agency of Petroleum, Natural Gas and Biofuels.

Calgary, Alberta-based Alvopetro Energy Ltd. said the 197(2) well is in the state of Bahia, Brazil.