Productivity dynamic analysis of fractured horizontal well in ultra-low permeability reservoir

Daqing Oilfield is rich in low permeability reservoirs. In order to fully understand the development dynamics of ultra-low reservoirs, this paper takes as an example and studies productivity fractured horizontal Wells by numerical simulation method. The results show that decreases exponentially with decrease formation permeability. well increases fracture length spacing. With increase coefficient reservoir thickness, decreases. case small spacing, smaller higher Wells. Compared conventional vertical Wells, have better production performance.