Patent ID: 7561998

Claim:
A method of treating a subterranean formation comprising a porous medium, the method comprising: a. modeling a subterranean formation stimulation treatment involving a chemical reaction between a treatment fluid introduced into the formation and the porous medium, the modeling generating a model of the stimulation treatment and comprising describing a growth rate and structure of a dissolution pattern formed due to injection of the treatment fluid in the porous medium, based on calculating length scales for dominant transport mechanism(s) and reaction mechanism(s) in a direction of flow l x and a direction transverse to flow l T , wherein the growth rate and the structure of the dissolution pattern is described as function of l x and l T as follows: Λ=( l T / l x )=√(k eff D eT )/ u tip whereby k eff is an effective rate constant, D eT is an effective transverse dispersion coefficient, and u tip is velocity of fluid at a tip of a wormhole, and whereby optimum flow rate for formation of wormholes is computed by setting Λ in a range 0.1 <Λ<5; flow rate for uniform dissolution is computed by setting Λ>0.001; or, flow rate for face dissolution is computed by setting Λ>5; b. introducing the treatment fluid into the formation; and c. treating the subterranean formation based upon the modeled stimulation treatment.