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| затрубные запасы (If a well drills through several pay zones and is completed in the deepest productive reservoir, casing is set all the way down to the producing zone. Viewed from (a perspective) inside the borehole, reserves in the shallower pay zones up the hole are behind the casing. felog) | |||
| behind pipe: 7 phrases in 4 subjects |
| Audit | 1 |
| Oil / petroleum | 2 |
| Oil and gas | 2 |
| Oil and gas technology | 2 |