| Word | Definition |
| SAGD (steam-assisted gravity drainage) | A recovery technique for extraction of heavy oil or bitumen that involves drilling a pair of horizontal wells one above the othe... |
| Salt Dome | A domical arch (anticline) of sedimentary rock beneath the earth's surface in which the layers bend downward in opposite directions from the cr... |
| Sandstone | A compacted sedimentary rock composed mainly of quartz or feldspar; a common rock in which oil, natural gas and/or water accumul... |
| Satellite Installation | An offshore structure that depends on another installation for materials or services. |
| SBM | Single buoy mooring |
| Scientific Research Allowances (SRA) | Costs of exploration work qualifies for full write-off as incurred. |
| Scoop Loading | An underground loading method by which coal or oilsands is removed from the working face by a tractor unit equipped with a hydraulically operated buck... |
| Seam | A bed of coal lying between a roof and floor. |
| Secondary Recovery | The extraction of additional crude oil, natural gas and related substances from reservoirs through pressure maintenance techniqu... |
| Sedimentary Rocks | Rocks formed by the accumulation of sediment or organic materials and therefore likely to contain hydrocarbons. |
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