Research Article
The Adverse Impact of Muddy Laminae on Conventional SAGD Performance and Improvement Strategy with the Multilateral Well Pattern
Table 3
SAGD performance with different combinations of well patterns under different distribution modes of the muddy laminae (
and
).
| | Distribution modes of the muddy laminae | Different combinations of well patterns | Recovery factor (%) | Cumulative steam oil ratio (m3/m3) |
| | Muddy laminae are distributed above the injector (close to the injector) | Conventional well pattern | 65.92 | 4.45 | | Type A | 66.84 | 4.41 | | Type C | 67.76 | 4.33 | | Type E | 68.54 | 4.49 | | Muddy laminae are distributed between the injector and producer | Conventional well pattern | 48.87 | 4.52 | | Type A | 49.66 | 4.50 | | Type C | 56.14 | 4.07 | | Type E | 63.98 | 4.04 | | Combined distribution mode | Conventional well pattern | 31.36 | 5.29 | | Type A | 32.95 | 5.22 | | Type C | 36.39 | 4.89 | | Type E | 47.08 | 4.64 |
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