|
|
|
The effect of inorganic salt precipitation on oil recovery during CO2 flooding: A case study of Chang 8 block in Changqing oilfield, NW China
|
|
YUAN Zhou,LIAO Xinwei,ZHANG Kuaile,ZHAO Xiaoliang,CHEN Zhiming
|
|
| |
Table 1 Mass concentration of main scale-forming ions in the formation water samples.
|
|
| Formation water sample | Mass concentrations of main
scale-forming ions/(mg·L-1) | Total
salinity/
(mg·L-1) | | Ca2+ | Mg2+ | Ba2+ | Sr2+ | | 1 | 2012 | 198 | 0.006 | 19.4 | 16 090 | | 2 | 5145 | 209 | 0.057 | 25.4 | 32 375 | | 3 | 10590 | 222 | 0.028 | 18.8 | 57 000 |
|
|
|