Calculating method of porosity lower limit of recovery industry for effective reservoir under pore structure restraint
2011
The invention relates to a calculating method of a porosity lower limit of a recovery industry for an effective reservoir under pore structure restraint. According to the calculating method disclosed by the invention, on the basis of classification of the pore structures, porosity lower limits of the recovery industry under the restraint of different pore structures are calculated, and the problem that the porosity lower limit of the recovery industry for the effective reservoir is influenced by the pore structures is solved. According to the calculating method disclosed by the invention, the porosity lower limits of the recovery industry for different effective reservoirs are calculated for reservoirs with different pore structures, and thus the accuracy for calculating the porosity lower limit of the recovery industry for the effective reservoir is increased.
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