Grapple:

The interior of a grapple is wickered to engage the fish.

Terms Related to Grapple

• 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.

• 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 ...

• Taper tap

  A tap with a gradually decreasing diameter from the top. It is used to retrieve a hollow fish such as a drill collar and is ...

• Safety joint

  An accessory to a fishing tool, placed above it. If the tool cannot be disengaged from the fish, the safety joint permits easy disengagement of ...

• Fishing string

  An assembly of tools made up on drill pipe that is lowered into the hole to retrieve lost or stuck equipment. Also call a fish ...

• Mechanical jar

  A percussion tool operated mechanically to give an upward thrust to a fish by the sudden release of a tripping device inside the tool. If ...