Optimal Inflow Performance Relationship Equation for Horizontal and Deviated Wells in Low-Permeability Reservoirs

Table 1

Types and equations of inflow performance of oil wells.

Type	Inflow performance equation	Comments on a form
Vogel type (type 1)
Klins-Majcher type (type 2)
Fetkovich type (type 3)		Change range of is
Bendakhlia-Aziz type (type 4)
Wiggins-Russell-Jennings type (type 5)
		Harrison type (type 6)
	The IPR proposed (type 7)