The Petroleum Production System - Casing

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The Schlumberger Oilfield Glossary defines a casing string as an assembled length of steel pipe configured to suit a specific wellbore 1.


The casings contributions/effects in the petroleum production system are [2, 3]

Problem Areas and Solutions

Mohammed, A.I. et al in “Casing structural integrity and failure modes in a range of well types: a review”4, provide the following as the failure modes experienced by casing strings, and also the current solutions/practices employed:

Up next, we will examine the tubing.

Standing on Giant’s shoulders (References):

  1. Schlumberger Oilfield Glossary - Casing string
  2. PetroWiki Casing and tubing
  3. Rabia, Hussain (1986). Oil Well Drilling Engineering. springer. pp. 185–243. ISBN 0860106616.
  4. [MOHAMMED, A.I., OYENEYIN, B., ATCHISON, B. and NJUGUNA, J. 2019. Casing structural integrity and failure modes in a range of well types: a review. Journal of natural gas science and engineering [online], 68, article ID
  5. Available from:]4
  6. PetroWiki Casing and tubing buckling