Chemical-Enhanced Oil Recovery Using N,N-Dimethylcyclohexylamine on a Colombian Crude Oil
Table 2
Results obtained from crude oil extraction process using DMCHA as solvent.
Entry
Initial quantities
Ratio DMCHA : W
Obtained results
Mineral (g)
Ob (g)
Amine (mL)
Wb (mL)
Rec.b mineral (%)
Extract (%)
%CV
Rec.b amine (%)
1
12
0.75
45
120
1 : 2.7
90.4
112.4
3.7
28.9
89.8
106.7
27.8
2
12
1.5
45
120
1 : 2.7
89.3
143.5
22.9
57.8
89.0
103.5
35.6
3
12
1.0
22.5
45
1 : 2
90.7
73.6
17.6
53.3
86.7
74.0
53.3
91.7
98.9
48.9
4
12
1.5
22.5
45
1 : 2
88.3
95.7
4.0
53.3
88.8
88.3
51.1
89.5
92.5
53.3
5
12
2.5
22.5
45
1 : 2
92.2
69.2
9.7
53.3
91.8
83.8
55.6
88.0
74.8
53.3
6
12
2.5
22.5
22.5
1 : 1
91.3
90.2
3.4
62.2
90.8
84.4
60.0
91.7
88.7
57.8
7a
12
2.5
22.5
22.5a
1 : 1
87.3
87.7
1.8
62.2
85.4
90.7
57.8
92.0
88.2
62.2
aFor this entry, brine (NaCl, 1500 mg/L) was used instead of water for evaluating the total dissolved solid effects on the extraction process. bO: crude oil; Rec.: recovered; W: water.
