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The crank-type internal right-angle threaded up-and-off wrench won the national patent

 Last Update: 2021-07-12
 Source: Internet
 Author: User

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A few days ago, a "handle-type internal right-angle threaded top-off wrench" from the Shallow Sea Institute of Shengli Oilfield Petroleum Engineering Technology Research Institute was granted a national invention patent.

With the demand for fine development of oil reservoirs and the development of intelligent oil and water wells, the requirements for the function integration of downhole tools for oil and water wells have gradually increased.

In response to the above problems, researchers invented a crank-type internal right-angle threaded up-and-off wrench.

It is understood that this patent is not limited to the connection or disassembly of bolts, but is applicable to nuts, pressure nails, pressure caps, etc.

(Ren Houyi and Li Dezhong)

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