The second line of defense for the workers and the well to prevent a blowout is the group of equipment called blowout preventers (BOPs). BOPs and associated valves are installed on top of the casing head before drilling ahead after rigging up. These high-pressure safety valves and associated equipment are designed to shut off the well hole and prevent the escape of the underground fluids and prevent a blowout from occurring
HIT, task a Requester submits to Amazon Mechanical Turk for Workers to perform
Illustration of quarry mining
Please visit the Vecta Community to request this symbol.
If possible, please include the screenshot of the symbol.