| 1. | Lift bop stack and replace wellhead connector ax ring
吊起防喷器组并更换连接器 |
| 2. | Specification for wellhead and christmas tree equipment
井口和采油树设备的规范 |
| 3. | Servo - aligning sealer for polished rod at wellhead
抽油井口随动对中光杆密封器 |
| 4. | Testing study of the gas seal about gas production wellhead
采气井口气密封检测研究 |
| 5. | Specification for wellhead and christmas tree equipment
井口装置和采油树规范 |
| 6. | Securely connect the hydraulic connector to the wellhead
确保液压连接器连接到井口上。 |
| 7. | Wellhead bias - adjustable device for rod - pumped well
抽油机井井口调偏装置 |
| 8. | Will that fit our wellhead
那个对井口来说合适吗 |
| 9. | Buckling - up - installing wellhead
扣装法抢装井口 |
| 10. | Function test wellhead
对井口头进行功能试验 |
