Fishing with Washover Strings

Fishing with Washover Strings

Washover strings can be used when:

  • the formation has bridged off and stuck the string.
  • the string has become cemented in the hole.
  • dressing the top of the fish for latching on with an overshot.
  • milling over stuck packers
  • milling over stabilisers and reamers.


Consideration shall be given to the cost of the washover operation as in many cases this will outweigh the loss of the fish in the hole plus possible sidetrack operations.

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