The numerical model proposed in Part 1 was first verified and then applied to a well-documented field case involving openhole cavity completion in a coalbed methane reservoir. Following calibration against the field observation, the numerical model was used to test the effect of strength, permeability, reservoir depth, and pressure gradient on cavitation and production. The sensitivity studies indicate that the potential for cavitation and production increases with reduction in strength properties, reduction in permeability, increase in depth, and increase in pressure gradient. Among them, the most influential parameter is the apparent cohesion. The smaller the cohesion, the larger the size of both cavitation and the adjoining plastic-failed zone. The latter is particularly important for boosting production because within the plastic zone, permeability increases due to shearing (dilation) and reduction in the mean effective stress. A corollary of the above is that in competent rocks, the response may be reversed since the creation of the cavity results in the development of a relatively tight plastic zone and a large zone outside the plastic zone within which permeability becomes depressed because of a net increase in the effective mean stress. In such formations, there would be a net reduction in permeability and hence productivity.