| 1. | Guide of laying for asbestos - cement pipe for well casing
石棉水泥井管施工指南 |
| 2. | Standard for concrete and reinforced concrete well pipes
混凝土与钢筋混凝土井管标准 |
| 3. | Pull out the drifting string and check the gauge for scratch
起出通井管柱，检查通井规擦痕。 |
| 4. | Asbestos - cement pipe for well casing
石棉水泥井管 |
| 5. | Construct the light well point pipe after completion the east two - line side piling , to prevent the pipe movement or damage by soil pressure during piling
轻型井点管应在东侧的两排边桩施工完毕后方可施工,防止压桩过程中,土的挤压力使井管位移或损坏井管 |
| 6. | Jwy is a new generation of intensive completion pipe string cleaning agent . it possesses the good property in cleaning , oil contaminant suspension and oil - water separation with little damage to the environment
Jwy完井管柱清洗剂是新一代强力清洗剂，具有良好的清洗、油污悬浮、油水相分离能力，对环境污染小。 |
| 7. | By establishing force equilibrium equations , a mechanical model for calculating the friction on the string is set up , and the analytical formulas for calculating the hook load and wellhead torque when the string is tripped in
通过建立管柱受力平衡方程，推导出水平井管柱入井时摩阻计算的力学模型，分析计算了在稳定和旋转方式下管柱入井时的大钩载荷和井口扭矩等重要技术参数的解析公式。 |
| 8. | Is noe kind of non - reclaimable fishing tool which is normally used for the fishing purpose from the outside of the pipe string , iscan be used to fish flat - type fsh head of the pipe string . it is characterized for directly fishing purpose without shaping the fish top
弯鱼头打捞筒是从管柱外部进行打捞的一种，不可退式工具可打捞弯扁形鱼头的落井管柱，其特点是在不用修整鱼顶的情况下直接进行打捞。 |
| 9. | [ english ] is noe kind of non - reclaimable fishing tool which is normally used for the fishing purpose from the outside of the pipe string , iscan be used to fish flat - type fsh head of the pipe string . it is characterized for directly fishing purpose without shaping the fish top
弯鱼头打捞筒是从管柱外部进行打捞的一种，不可退式工具可打捞弯扁形鱼头的落井管柱，其特点是在不用修整鱼顶的情况下直接进行打捞。 |
