The Resource Potential and Development Prospect of Helium in Changqing Gas Field

Table 3

Financial indices of helium at different prices.

Helium price (tax excluded)	Evaluation indicators (after tax)
	IRR (%)	NPV (10^4 RMB)	ROI (years, two years for construction included)
100 yuan/Nm^3	—	-126024	—
110 yuan/Nm^3	2.08	-67539	16.39
120 yuan/Nm^3	5.51	-9128	11.63
130 yuan/Nm^3	8.48	49198	10.23
140 yuan/Nm^3	11.16	107523	9.2
150 yuan/Nm^3	13.63	165736	6.94
160 yuan/Nm^3	15.95	223934	6.46