Proactive Investors
Published Apr 16, 2024 09:52
Updated Apr 16, 2024 10:30
Botala Energy exceeds expectations with initial gas desorption test results from Serowe CBM Project in Botswana
Botala Energy Ltd (ASX:BTE) has received promising initial results from ongoing gas desorption testing at the wholly-owned Serowe coal bed methane (CBM) Project in Botswana.
As of day 61, the Serowe 3-4 well is testing at 2.0 standard cubic centimetres per gram (ssc/g).
Desorption testing is a three-stage process designed to determine the amount of gas held within a gram of coal, and the coal's ability to release gas under flowing conditions in production.
"Very pleased"
“We are very pleased with the initial gas desorption testing,” Botala Energy CEO Kris Martinick
“Based on the initial results there is strong potential that we may exceed our target rate of 2.4 scc/g which was used previously in the certification process.
“These results are in line with gas desorption rates that you would expect in Queensland and give us strong confidence in our CBM project as we rapidly advance towards development.”
Three-stage desorption testing
BTE’s desorption testing involved taking core samples of the coal seams from the Serowe 3-4 well, placing them in a water bath and then maintaining the temperature of the water at a rate consistent with underground conditions.
From there the coals undergo three stages of testing:
The total gas content (QT) is calculated as the sum of Q1, Q2, and Q3.
Representative Q2 desorption data from the Serowe coal seam:
BTE says the desorption testing will continue for another two months until rates plateau, with recertification already underway for the project.
Previous modelling targeted a desorption rate of 2.4scc/gram and 5 exploration wells (vs 11 currently drilled) – Botala says exceeding the 2.4scc/gram threshold has the potential to increase gas volumes further within the project tenure.
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