Patent ID: 8066072

Claim:
A method of stimulating a well for production of hydrocarbons from a formation when a stimulation fluid is introduced through a cemented and perforated tubular for dissolving material, the method comprising the steps of: establishing a wellbore; introducing a tubular into the wellbore for the production of hydrocarbons; cementing the tubular for retaining the tubular in the wellbore; selecting locations to perforate the tubular in the wellbore by modeling inflow performance of the stimulation fluid in the formation, based on parameters of a composition of the formation selected from the group of parameters consisting of: reservoir porosity, permeability, pressure, damage skin and intrusion depth, perforation diameter, penetration depth, or perforation crushed zone damage and intrusion depth; perforating the tubular at the selected locations after the tubular has been cemented in place; and stimulating the well by introducing the stimulation fluid into the formation through the perforated tubular at the selected locations, wherein calculating of a stimulation treatment is based on variations of one or more parameters of reservoir properties, and wherein the selected locations are determined by transient fluid modeling and thereby further designing a stimulation fluid injection scheme, the determination method comprising: calculating inflow performance for each perforation individually while the inflow performance changes as a function of volume of acid inflow in a “Matrix fluid” reservoir model: monitoring change in reservoir parameters or reservoir properties at each individual perforation, the reservoir parameters or reservoir properties including a parameter selected from the group of parameters consisting of: reservoir porosity, permeability, pressure, damage skin and intrusion depth, perforation diameter and penetration depth, or perforation crushed zone damage and intrusion depth; allowing variations of fluid parameters and computing a stimulation fluid distribution based on a pumping schedule that includes more than one fluid type with and without friction reducers; and correlating actual job data for post-job analysis in order to calculate the volume of fluids separated into each type or stage of fluids pumped that was injected into each perforation individually.