Proppant Impact on Fractured Well Productivity in Gas Condensate Reservoir

Goal of current work is to estimate different proppant types and placements impact on well productivity in gas condensate reservoir which is developed by vertical wells with hydraulic fracturing. Theoretical review of processes in gas condensate reservoirs was conducted. Condensate distribution inside and around hydraulically fractured well was investigated. Equation for additional pressure drop due to presence of condensate bank was derived. Relative pemeabilities were obtained using modified Brooks and Corey model. Alternative description of non-Darcy flow in gas condensate reservoirs was considered. In order to provide sensitivity analysis for well and fracture parameters using different proppant types, mech sizes and various techniques of proppant placement original program was built based on MS Excel VBA. Approach for gas reservoir performance estimation was extended to gas condensate case. Main results of conducted sensitivity analysis for various proppants and placements are: 1. Condensate dropping leads to similarity in different proppant types and mech sizes use. Proppants become more similar in the production context with gas enrichment. 2. Consideration of alternative proppant pack placement such as creation of high permeable channels in current study may not give significant increasing of production in case of gas well.