Experimental Study for the Effects of Different Factors on the Sand-Carrying Capacity of Slickwater

With the continuous exploration and development of unconventional oil gas reservoirs, volume fracturing technology becomes one necessary measures for developing shale tight sandstone reservoirs effectively. Volume usually uses slickwater drag-reducing agent as core system. The composition system is main factor determining its performance. Polyacrylamide has many amide groups in chain, high activity, controllable performance, often solid powder liquid emulsion states. Furthermore, polyacrylamide which water-soluble most widely used applying current operations. Due to low viscosity poor sand-carrying capacity slickwater, proppant easily settles at bottom hydraulic fractures. This phenomenon influences stimulation effect fracturing. Therefore, law sand carrying placement fractures plays an essential role success Through visualization device transport fracture, settlement fracture was studied experimentally. And through experimental equipment, effects different operation pumping rates, viscosity, type, schedule on were studied. results can provide strong support into well material optimization parameter reservoirs.