| Symbol |
Description |
| WI1 |
4p/1in |
| WI2 |
4p1in |
| WI3 |
4p/1in |
| WI4 |
2in3pro |
| WI5 |
5wat/4p/1in |
| GI1 |
4p/1in |
| GI2 |
4p/1in |
| GI3 |
4p/1in |
| GI4 |
2in3pro |
| GI5 |
4inj1pro |
| WAG1 |
1:1 |
| WAG2 |
1:2 |
| WAG3 |
1:3 |
| WAG4 |
2:3 |
| WAG5 |
3:4 |
| WAG cycle1 |
4 month water, 8 months gas |
| WAG cycle2 |
6 months water, 6 months gas |
| WAG cycle3 |
8 months water, 4 months gas |
| WAG cycle4 |
12 months water, 12 months gas |
| SWAG1 |
1:1 |
| SWAG2 |
1:2 |
| SWAG3 |
1:3 |
| SWAG4 |
2:3 |
| SWAG5 |
3:4 |
| M |
Ratio of initial gas cap volume to initial oil area volume (for injection to oil area without gas cap m=0) |
| I |
Produced part of gas which has been re-injected. |
| R |
Average GOR between j and j+1. |
 |
Gas injection in oil area |
 |
 |
|
 |
Minor movement of gas |
 |
Appropriate quantity for injection |
