Reamer:

See ream.

Terms Related to Reamer

• Ream

  To enlarge the wellbore by drilling it again with a special bit. Often a rathole is reamed or opened to the same size as the ...

• Dogleg

  A particularly crooked place in a wellbore where the trajectory of the wellbore in three-dimensional space changes rapidly. While a dogleg is sometimes created intentionally by ...

• Hole opener

  A device used to enlarge the size of an existing borehole, having teeth arranged on its outside circumference to cut the formation as it rotates.

• Borehole

  1. A hole made by drilling or boring; a wellbore. 2. The wellbore itself, including the openhole or uncased portion of the well. Borehole may ...

• Slim-hole drilling

  Drilling in which the size of the hole is smaller than the conventional hole diameter for a given depth. This decrease in hole size enables ...

• Wall hook

  A device used in fishing for drill pipe. If the upper end of the lost pipe is leaning against the side of the wellbore, the ...

• Chemical cutoff

  A method of severing steel pipe in a well by applying high-pressure jets of a very corrosive substance against the wall of the pipe. The ...