A wellbore tool may include a port through the body and a first rupture disk disposed on the body and covering the port, the body defining a first interior chamber and a second interior chamber, with a liquid-permeable membrane separating the first interior chamber and the second interior chamber within the body. The body may be configured to retain a first solid reactant in the first interior chamber and a second solid reactant in the second interior chamber, wherein the first rupture disk is configured to rupture at a pressure differential downhole. A method for livening a well may include lowering the wellbore tool into a wellbore.