MODELING AND SIMULATION OF RESERVOIR FORMATION DAMAGE DUE TO CHEMICAL PRECIPITATION AND PARTICULATE PROCESSES

📄 Project Abstract

Formation damage is an undesirable operational and economic problem that can occur in many phases of field development including drilling, completion, workover, production, stimulation, waterflooding and enhanced oil recovery. In fact, it is among the major causes of a well productivity reduction in petroleum reservoirs. Proper understanding of the factors causing these damages is therefore of utmost important. A model for petroleum reservoir formation damage by chemical precipitation and fines migration is presented. Single type of particle (calcium carbonate) was assumed to exist in the porous system. Hydrodynamic force was modeled as the possible cause of fines mobilsation. Pore body deposition was considered as the basic phenomenon for permeability impairment while pore throat blocking was neglected in the modeling process. Macroscopic mass balance approach was used for the particle, fluid and chemical species. A complete formation damage model was obtained by modeling different ro...