Selection Criterion and Economical Evaluation of Refracturing in Tight Gas-Condensate Reservoirs

Summary Refracturing is an excellent option for reviving productivity and improve recovery, especially in potential reservoir sections. Different techniques are available for refracturing. However, to ensure successful outcomes, a clear and reasonable selection criterion for the best candidates for refracturing must be established. Most of the existing studies literature have been studied is focused on hydraulic fracturing, and refracturing techniques on shale reservoirs since these formations are usually classified as low or ultra-low permeability formations. However, analyzing the profitability of refracturing and hydraulic fracturing in tight sandstone gas-condensate reservoirs is a valuable task. CMG simulator is used to analyze and compare different fracturing and refracturing scenarios based on ultimate hydrocarbon recovery. The workflow of the study is mainly divided into three parts: creating a reservoir model, developing hydraulic fracture model, and performing sensitivity analysis on reservoir and fracture properties. The economic feasibility of the optimum fracturing scenario is studied in detail compared to drilling a new well. Profound impact of refracturing on hydrocarbon production in several cases has been discussed and the scenarios in which refracturing showed reasonably high petroleum production were analyzed. The outcomes of this study provide the industry with the selection criterion for the optimum candidates for refracturing.