Performance Optimization of CO₂ Huff-n-Puff for Multifractured Horizontal Wells in Tight Oil Reservoirs

Table 5

Twelve parameters used in the simulation cases.

Parameter types	Parameter	Design of schemes	Basic parameter value
Reservoir parameters	Permeability (mD)	0.039, 0.1, 0.39, 1, 3.9	0.39
	Thickness (m)	6, 14, 26, 34	26
	Porosity (%)	3, 7.1, 12, 15	7.1
Horizontal well parameters	Length (m)	240, 480, 720, 960, 1200	720
	Fracture half-length (m)	60, 100, 124, 140	100
	Fracture spacing (m)	80, 120, 180, 240	120
	Fracture conductivity (mD·m)	10, 20, 30, 50	30
Injection-production parameters	Total CO2 injection (t)	500, 750, 1000, 1500, 2500, 4000	1500
	CO2 injection rate (t/d)	30, 50, 75, 100, 150	50
	Soaking time (d)	5, 10, 20, 30, 50	20
	Production rate (m^3/d)	5, 10, 20, 30, 50	50
	Cycles	1, 2, 3, 4, 5	1