The Icewine#2 well was shut-in on 10 July to allow for imbibition and pressure build up to occur within the HRZ shale. Flow testing re-commenced on 31 August at 10:26 (AK time), and was suspended on 18 September (AK time).
The barrier has a large operational envelope: it is capable of withstanding pressure differentials up to 10 000 psi (68.95 MPa) and temperatures between 40 and 325°F (4 and 163°C), which reduces the loss-of-containment risk in extreme environments.