Casing overshot:

Terms Related to Casing overshot

• Casing-patch tool

  A special tool with a rubber packer or lead seal that is used to repair casing. When casing is damaged downhole, a cut is made ...

• Overshot

  A fishing tool that is attached to tubing or drill pipe and lowered over the outside wall of pipe or sucker rods lost or stuck ...

• Casing roller

  A tool composed of a mandrel on which are mounted several heavy-duty rollers with eccentric roll surfaces. It is used to restore buckled, collapsed, or ...

• Casing pack

  A means of cementing casing in a well so that the casing may, if necessary, be retrieved with minimum difficulty. A special mud, usually an ...

• Spiral grapple

  A helically shaped gripping mechanism that is fitted into an overshot to retrieve fish from the borehole. See grapple.

• Basket grapple

  An expandable, cylindrically shaped gripping mechanism that is fitted into an overshot to retrieve fish from the borehole. See grapple.

• Intermediate casing string

  The string of casing set in a well after the surface casing but before production casing is set. Keeps hole from caving and seals off ...