Optimasi Panjang Hydraulic Fracture pada Reservoir Nonkonvensional dengan Metode Uniform Conductivity Rectangular Fracture

Abstract

Energy needs in the future will continue to grow along with the growth of the population. The solution to this need is the development of unconventional oil and gas reserves, the tight sand gas reservoir. Gas from the tight sand gas reservoir can be produced by the hydraulic fracturing method. Hydraulic fracturing is a method of well stimulation in which rocks are fractured using a compressed fluid and then propane is injected to hold the fracture open. The cost required for this fracturing activity is relatively expensive, so it is necessary to choose the right hydraulic fracturing design. This study aims to determine the effect of fracture properties, namely the length and width of the fracture on hydrocarbon recovery. The data used are the volume of shale, porosity, permeability, and water saturation from well log data. This data becomes input data in a simple reservoir model to be built. In the reservoir model, the fracture will be modeled according to the hydraulic fracture design with a certain length, width, and permeability using the Uniform Conductivity Rectangular Fracture method. The simulation continues with the use of different fracture length designs. From the simulation results, it can be concluded that the relationship between the fracture length and the recovery factor is an exponential equation.