Design of Horizontal Well Parameter in Low Permeability Gas Reservoirs

Because there were many natural fractures in low permeability gas reservoirs,it was beneficial for horizontal well development.The permeability of reservoir was low,reservoir reconstruction was needed for higher productivity in gas wells.Therefore,it was critical important to design the position,trajectory and parameters of horizontal wells.the principles of determining the position and trajectory of horizontal wells were proposed,and the method of determining the parameters of horizontal wells with orthogonal experimental design was also proposed.According to the research,the trajectory horizontal wells should be perpendicular to the direction of natural fracture,and the method of orthogonal experimental design could quickly and accurately determine the optimal parameters of horizontal wells.Finally,the optimal parameters of horizontal wells are determined.It is important for the development of horizontal wells in low permeability gas reservoirs.