The Ordovician reservoir in Tahe oilfield is a typical fractured-vuggy carbonate reservoir.Both production performance and correlation studies show that conduit flow and seepage flow coexist in the reservoir.Caverns and associated fracture zones serve as flow and storage space for these reservoirs.The flow regime is characterized by typical conduit flow in the caverns and by seepage flow in minute fissure-pores.Based on flow regime and production characteristics

this paper

supported by fractured-vuggy reservoir model

studies the dynamic characteristics

production performances

water breakthrough

production decline and waterflooding under conduit flow and seepage flow conditions.It also discusses optimal production rate

productivity

and well pattern

and presents technical solutions of coning prevention

water plugging

and waterflooding for developing fractured-vuggy reservoirs.They can serve as guidance in the development and comprehensive management of the Ordovician reservoirs in Tahe oilfield.