What is the primary function of blowout preventers (BOP)?

The primary function of blowout preventers (BOP) is to prevent uncontrolled hydrocarbon release. BOPs are critical safety devices used in oil and gas drilling operations to manage pressure and prevent blowouts, which are sudden and uncontrolled releases of oil and gas from the well. These occurrences can pose significant risks to personnel, the environment, and drilling equipment. BOPs are designed to seal the wellbore in the event of a sudden influx of fluids, effectively controlling well pressure and preventing local and widespread environmental disasters.

While the other choices relate to aspects of drilling operations, they do not capture the essential safety function that BOPs serve in ensuring controlled drilling practices and protecting both workers and the surrounding area from the hazards associated with blowouts.