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2. Failure of the well control system results in an
uncontrolled flow of formation fluids and is called a blowout.
3. Blowouts can cause loss of life, drilling equipment, the
well, much of the oil and gas reserves in the underground
reservoirs, and damage to the environment near the well.
4. The rapid pressure release of large volume of fluid
through the surface piping frequently is accompanied by
extreme vibration stresses.
5. The weight of valves and fittings should be supported
on structural members so that bending stresses are not created
in the piping.

Questions

1. What is the main function of the blowout preventor?
2. What are ram preventors used for?
3. What are blind rams?
4. When can shear rams be used?
5. What are the main functions of the accumulator?
6. Why is the BOP stack always placed on the derrick floor?

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