Causes of Packer seal failure

Causes of Packer seal failure

The article identifies the most common factors which can play a role in premature failures of packer seals:

1. Installation procedures

  • Storage damage: ageing (heat, sunlight or radiation); distortion (poor support, heavy loads).
  • Friction damage: non-uniform rolling or twisting, or abrasion by un-lubricated sliding.
  • Cutting by sharp edges: Inadequate taper on corners, sharp edges on ports, seal grooves etc.
  • Lack of lubrication.
  • Presence of dirt.
  • Use of incorrect installation tools.

2. Operational factors

  • Inadequate duty . . .

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