| 1. | The initial gushing of oil out of a drill pipe is caused by the pressure of the gas trapped and compressed immediately above the oil deposits .
最初石油喷出钻管，是由于受到紧压在石油层上的被密封的气体的压力。 |
| 2. | Application of model test in analyzing drill pipe
模型试验在钻杆柱研究中的应用 |
| 3. | Please measure drilling collar first , then drilling pipe
先量钻铤，再量钻杆。 |
| 4. | Performance properties of casing , tubing and drill pipe
套管油管和钻杆使用性能 |
| 5. | Research technology measures use on drill pipe to protect wear
钻杆防磨技术的现状和发展 |
| 6. | Slack off drill pipe and release running tool
放松钻杆并卸开下入工具 |
| 7. | Petroleum and natural gas industries - aluminium alloy drill pipe
石油和天然气工业.铝合金钻杆 |
| 8. | Petroleum and natural gas industries - aluminium alloy drill pipes
石油和天然气工业.铝合金钻杆 |
| 9. | Rules for the inspection of welding drill pipes for import and export
进出口石油对焊钻杆检验规程 |
