What kind of paper pressure test pen is used in the pilot test of oil cementing?

The paper pressure test pen for petroleum cementing test is used to mark the pressure change on the paper pressure test. In petroleum engineering, cementing is a key operation, which is used to ensure the strength of drilling shaft and prevent oil and gas leakage. During the cementing process, a pressure test will be conducted to evaluate the sealing performance of the wellbore. Pressure test paper and pressure test pen are tools to record pressure test operation. Pressure test paper is a special kind of paper, which has certain mechanical strength and compression resistance. Pressure test pen is a special writing tool, which is used to record on pressure test paper. During the pressure test, the pressure test paper is placed under the wellhead or pressure sensor to bear the pressure generated during the pressure test. The pressure test pen is used to mark the pressure change on the pressure test paper. By observing the marks on the pressure test paper, engineers can judge the sealing performance of the wellbore and whether there is leakage. Pressure test paper and pen have certain compressive and waterproof properties to ensure the accuracy and readability of pressure test records. They play an important role in cementing operation and help engineers evaluate the safety performance of wellbore. Petroleum cementing is an important petroleum engineering technology, which is used to ensure the strength of drilling shaft and prevent oil and gas leakage. After oil well drilling, cementing is the process of firmly fixing the steel pipe (casing) in the wellbore in the stratum.