Effect of overbalance pressure on formation damage

S. Z. Jilani, H. Menouar, A. A. Al-Majed, M. A. Khan

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


Experiments were conducted to investigate the influence of overbalance pressure on formation damage during drilling operations. An innovative ultrasonic method was employed to measure mud invasion depth. It was observed that mud invasion depth decreases with increasing overbalance pressure until it reaches a critical pressure. Beyond that, invasion depth increases with overbalance pressure. The above phenomenon reflects a strong physical relationship between overbalance pressure and mud fines and filtrate invasion depth.

Original languageEnglish
Pages (from-to)97-109
Number of pages13
JournalJournal of Petroleum Science and Engineering
Issue number1-2
StatePublished - Oct 2002


  • Formation damage
  • Horizontal wells
  • Mud invasion depth
  • Nondestructive evaluation
  • Overbalance pressure


Dive into the research topics of 'Effect of overbalance pressure on formation damage'. Together they form a unique fingerprint.

Cite this