Ann: Update on BBB 33 Evaluation and Bolling 4 Drilling, page-62

„Initial testing and evaluation at BBB #33 resulted in gas to surface flow of >3% heliumunder light vacuum“

And Yes, vacuum or low-pressure techniques can be particularly beneficial for bringing low-pressure wells into production or enhancing production rates from underperforming wells. When wells have insufficient natural reservoir pressure to flow gas to the surface at desirable rates, these techniques can help by reducing the backpressure in the wellbore and reservoir, thereby promoting gas flow.

In the case of low-pressure wells, employing artificial lift methods or downhole pumping systems can effectively lower the bottom-hole pressure, allowing gas, including helium, to flow more freely from the formation to the wellbore and ultimately to the surface for collection. By creating a lower pressure environment in the well, vacuum or low-pressure techniques can help overcome the limitations posed by low reservoir pressure and improve production rates.

Overall, these techniques can play a crucial role in optimizing production from low-pressure wells and maximizing the recovery of gas resources, including helium, from reservoirs that might otherwise be challenging to exploit.