Changes

While drilling a well, it is sometimes necessary to pull all drilling pipe out of the hole - to change a bit for example, either because the old one is worn down, or because the well is about to enter a zone whose conditions require a different bit type.  This process of puling all the pipe  (and then running it all back in again) is called a trip.  The deeper the hole, the longer a trip takes.

While [[drilling a well]], it is sometimes necessary to pull all drilling pipe out of the hole - to change a bit for example, either because the old one is worn down, or because the well is about to enter a zone whose conditions require a different bit type.  This process of puling all the pipe  (and then running it all back in again) is called a trip.  The deeper the hole, the longer a trip takes.

==See also==

==See also==