Compound inflation thread protector is mounted on the casing end, protection the casing thread when casings are removed during well drilling and work over, which cuts down the consumption and operating cost.

Compound inflation thread, also known as inflatable pipe plug, is installed tube department, casing in well drilling and workover job to protect casing thread, reduce consumption, reduce the operation cost, product part adopts nano materials, reliable performance, inflated rapidly, tight gas seal, install and disassemble because it is high practical value. Product is composed of pneumatic tyre and shell, shell adopts the new technology of polyurethane, steel casting, paste strong, beautiful outer body, wear-resisting, anti-corrosion performance is good.