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What issues should be paid attention to during the use of annular blowout preventers?
What issues should be paid attention to during the use of annular blowout preventers?
After the installation of the annular blowout preventer on site, the zero sealing test is generally not conducted, but the annular sealing test should be conducted as required;
2. According to relevant regulations, try to close the blowout preventer as much as possible and check the sealing effect. If any rubber core failure or other problems are found, it should be replaced immediately;
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2021.09
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