Casing Pressure

Definition - What does Casing Pressure mean?

Casing Pressure is the pressure required in drill pipes or tubing annulus in order to maintain smooth well control operations. An optimal amount of Casing Pressure is needed whenever a well is being drilling or when well workover operations are being carried out. In the oil and gas industry, the Casing Pressure of the well is always measured so as to avoid well blowouts.

Petropedia explains Casing Pressure

Casing Pressure is widely associated with gas wells and it describes the building up of gas pressure in the outer walls and tubing annulus of a well. Casing Pressure is also continuously observed in oil wells because natural gas is also produced along with crude oil from many oil wells. There are several reasons for an operator to monitor the Casing Pressure, out of which the primary reason is to avoid a blowout situation, whereby the pressure in the casing reaches to a great extent that it causes danger to the human life, and the wellhead platform and machinery. Other reasons include:

  • To avoid cracks in the well casing.
  • To help in elongating the life of drilling equipment, blowout preventers, etc.

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