matrix treatments are performed below the reservoir fracture pressure and generally are designed to restore the natural permeability of the reservoir following damage to the near wellbore area hydraulic fracturing in the context of well workover and intervention operations is a stimulation treatment routinely performed on oil and gas wells in low permeability reservoirs specially engineered fluids are pumped at high pressure and rate into the reservoir interval to be treated causing a vertical fracture to open the wings of the fracture extend away from the wellbore in opposing directions according to the natural stresses within the formation proppant such as grains of sand of a particular size is mixed with the treatment fluid keep the fracture open when the treatment is complete hydraulic fracturing creates high conductivity communication with a large area of formation and bypasses any damage that may exist in the near wellbore area in the context of well testing hydraulic fracturing means the process of pumping into a closed wellbore with powerful hydraulic pumps to create enough downhole pressure to crack or fracture the formation this allows injection of proppant into the formation thereby creating a plane of high permeability sand through which fluids can flow the proppant remains in place once the hydraulic pressure is removed and therefore props open the fracture and enhances.