| 1. | Drill stem tests are taken from some wells almost immediately after drilling and completion operations . 有些井刚钻完并进行完井作业后,就立即采取钻杆测试。 |
| 2. | Technology procedure for non - conventional drill stem testing 非常规地层测试技术规程 |
| 3. | Recommended practice for drill stem design and operating limits 钻柱设计和操作限度的推荐作法 |
| 4. | Automated centering system for drill stem friction welding machine 石油钻杆摩擦焊自动对中系统 |
| 5. | Dynamic simulation of the contact between drill stem and well wall 钻柱与井壁接触的动态仿真分析 |
| 6. | Pick up drill stem test tool 提起钻杆测试工具 |
| 7. | Simulation analysis of contact position of drill stem and application of antiwear tool 钻柱接触位置与防磨工具的应用仿真分析 |
| 8. | Supporting vector machine technology for drilling stem failure in oil drilling engineering 石油钻井中钻具失效的支持向量机技术 |
| 9. | Petroleum and natural gas industries - rotary drilling equipment - rotary drill stem elements 石油和天然气工业.旋转钻探设备.旋转钻杆构件 |
| 10. | Petroleum and natural gas industries - rotary drilling equipment - part 1 : rotary drill stem elements 石油和天然气工业.旋转钻探设备.第1部分:旋转钻杆构件 |