天然气井井下管柱是天然气从井底流至地面的必经通道。

In gas Wells, downhole strings are the inevitable passage through which gas flows from bottom hole to surface.

youdao

为了验证试油井下管柱力学理论分析的准确性，研制了井下管柱载荷测试器。

To measure the loads on tubular strings during well testing to verify the accuracy of theoretical calculations, a special measurement meter is initiatively developed.

youdao

第三，高温情况下酸液对井下管柱及工具腐蚀性很强，对缓蚀剂性能要求高。

Third, under high temperature condition, the pipes and tools in the well are seriously corroded, so the high temperature corrosion inhibitors are in great need.

youdao