OPTIMIZATION OF MODELING AND DESIGNING OF HYDRAULIC FRACTURING BY SELECTING PROPPANT TYPE, PROPPANT SIZE, FRACTURING FLUID AND PUMPING RATE IN LOW PERMEABILITY RESERVOIR

摘要

Hydraulic fracturing is essentially a fracturegeneratingrntechnique performed through injectingrnfluid into formation and keeping the created fracturesrnopen using high conductivity material calledrnproppant. The establishment of this highrnpermeability channel increases the productivity ofrnthe well.rnIn lower permeability sand like Well X (9.6 mD),rntransport of fracturing material is more important tornobtain a useful hydraulic fracture. This paperrninvestigates the effect of different fracturing fluids,rnproppant, proppant size and injection rate onrnhydraulic fracturing:rn1. Fracturing fluids: YF130.1HTD andrnYF125.1HTD,rn2. Proppants: Brady sand, C-Lite Ceramic, andrnAcfrac CR,rn3. Proppant size: 12/20, 16/30 and 20/40rn4. Injection rate: 10 bpm, 20 bpm and 25 bpm.rnThe simulation has shown that even thoughrnYF130.1HTD, C-Lite 12/18 and 25 bpm producesrnthe smallest fracture size it yields the highestrndimensionless fracture conductivity (FCD).rnFurthermore, high pumping rate and proppantrnconcentration improve the fracture parameters,rnwhereas larger pumping stages tend to produce thernreverse. The best design produced a FCD of 11.2 andrnfracture length of 198.9 ft.