| 1. | We must find economical methods for extracting oil from shale .
我们必须找到从页岩中采油的经济方法。 |
| 2. | Safety rules for extracting oil through pouring natural gas
循环注气采油安全规程 |
| 3. | Specification for wellhead and christmas tree equipment
井口和采油树设备的规范 |
| 4. | Design and downhole operation of continuous gas lift
连续气举采油井设计及施工作业 |
| 5. | Oil fields : freeze protcction for oil extraction tree
油田井口采油树的伴热防凝。 |
| 6. | Specification for wellhead and christmas tree equipment
井口装置和采油树规范 |
| 7. | Specification for drilling and production hoisting equipment
钻井和采油提升设备规范 |
| 8. | Oil recovery technique of rotary screw pump in directional - wells
定向井螺杆泵采油技术 |
| 9. | Applicable to use in ship or petroleum platform
可使用于船舶或采油平台。 |
| 10. | Research advances of chemicals for oil production
采油用化学剂的研究进展 |
