In the process of oil and gas drilling, drilling leads to a lot of heat, and the friction between the drilling tool and the wall of the hole can generate a lot of heat. Moreover, with the increase of the drilling depth, the temperature at the bottom of the well gradually increases, and the heat is transferred to the mud out of the well, and the mud temperature gradually increases. It will corrode the drilling tool and conveying equipment and shorten the service life of the drilling tools, and it will also affect the mud composition and mud action, which will cause mud failure and fail the function of protecting the well wall and drilling tools.
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