the equilibrium conditions of the application temperature pressure and partial pressure of carbon dioxide the design will involve equations of state for prediction of the ph and the subsequent gelation time for higher temperature applications the use of both temperature and ph can accelerate gelation one example is adding polylactic acid pla solids to the composition this chemical is largely inert until a certain temperature is reached at which time the pla decomposes to provide lactic acid that accelerates the gelation a similar effect could be achieved by using encapsulated acid or acidic salts that have a capsule wall that does not release until a higher temperature is achieved in a fifth embodiment the gel composition further comprises a gelling enhancer the gelling enhancer can be a colloidal solid examples include fly ash silica fumed silica titanium dioxide natural solids such as clays synthetic clays talc calcium carbonate latexes nanocarbons and minerals such as boehmite bohmite carbon black graphite etc other gelling enhancers for fracture plugging can include solids as fine silica flour ground nut shells diatomaceous earth ground seashells calcium carbonate fibers and other minerals fibers can be used as synthetic fibers e g kevlar fibers or metal fibers e g cast iron fibers in a sixth embodiment the gel composition further comprises a swellable polymer to trap oil and or water if used for removing water swellable polymers include.