Study on the Variation of Crude Oil and Flue Gas Components in Flue-Gas-Assisted Steam Flooding

Table 2

Four-component content data of produced crude oil.

Displacement pattern	Sampling stage	Saturate content (wt%)	Aromatic content (wt%)	Resin content (wt%)	Asphaltene content (wt%)
/	Initial sample	41.36	21.38	36.8	0.46
Steam flooding	Before water channeling	46.24	21.51	31.82	0.43
	After water channeling	43.53	21.18	34.56	0.73
Flue-gas-assisted steam flooding	Before gas channeling	47.71	21.8	30.08	0.41
	Before water channeling	45.46	21.49	32.56	0.49
	After water channeling	43.91	21.40	34.04	0.65