Straight hole:

Terms Related to Straight hole

• Nomograph

  A chart that presents an equation containing a number of variables in the form of several straight lines. The straight lines are scaled with values ...

• Dyna-drill

  Trade name for a downhole motor driven by drilling fluid that imparts rotary motion to a drilling bit connected to the tool, thus eliminating the ...

• Centralizer

  1. A bladed or bow spring tool that helps center tools or pipe in the wellbore. 2. A mechanical device to position casing concentrically in ...

• Rathole

  1. A hole in the rig floor, 30 to 35 feet (9 to 11 meters) deep, which is lined with casing that projects above 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 ...

• 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 ...

• Pickle

  A cylindrical or spherical device that is affixed to the end of a wireline just above the hook to keep the line straight and to ...