| 1. | Specification for drilling and well servicing structures
钻井和修井井架底座规范 |
| 2. | The operating and maintenance of petroleum workover rig
石油修井机使用与维护 |
| 3. | Drilling and workover technology in saudi arabia
沙特钻修井技术 |
| 4. | Overshot for drilling and servicing
钻修井用打捞筒 |
| 5. | Spear for drilling and servicing
钻修井用打捞矛 |
| 6. | Cutters for drilling and servicing
钻修井用割刀 |
| 7. | 5 workover fluids is o . k
修井液已配好。 |
| 8. | Barge workover rig
驳船修井设备 |
| 9. | Recommended practices for occupational safety oil and gas well drilling and servicing operations
油气井钻井及修井作业职业安全的推荐作法 |
| 10. | Our company to provide users with drilling and workover various models of the crown block
我公司为用户提供修井和钻井用各种型号的天车，规格齐全、配套完善。 |
