Abstract: Multiple layers of a seal can be formed to pressure-seal an open-hole wellbore in a subterranean formation. The seal can include at least one element and a sealing mixture between the element and a container housing for pressure sealing the open-hole wellbore between the element and the container housing and for providing multiple layers of seal in the open-hole wellbore. The seal can be retained by the sealing mixture subsequent to the sealing mixture being released.

Abstract: Multiple layers of a seal can be formed to pressure-seal an open-hole wellbore in a subterranean formation. The seal can include at least one element and a sealing mixture between the element and a container housing for pressure sealing the open-hole wellbore between the element and the container housing and for providing multiple layers of seal in the open-hole wellbore. The seal can be retained by the sealing mixture subsequent to the sealing mixture being released.

Abstract: An openhole interval of a well may be sealed by deploying a liquified phase transformation material to the openhole interval and allowing it to harden. In at least one example, this may be performed in a single step of building and maintaining pressure. The pressure may rupture a membrane, to introduce a fluid into a chamber with a reactive material (e.g. powder) in a delivery chassis, whereupon the fluid may exothermically combine with the reactive material to liquify the solid phase transformation material. The same applied pressure may also deliver the liquified phase transformation material to a deployment chassis, which then distributes the liquified phase transformation material under pressure to the openhole interval of the well. Various delivery chassis, deployment chassis, and related compositions and methods are disclosed as well.