Trip gas:

The gas may enter because of the reduction in bottomhole pressure when the pump is shut down, because of swabbing, or because of both.

Terms Related to Trip gas

• Trip margin

  The small amount of additional mud weight carried over that needed to balance formation pressure to overcome the pressure-reduction effects caused by swabbing when a ...

• Bottoms up

  1. A complete trip from the bottom of the wellbore to the top 2. Pertaining to the mud and cuttings that are calculated or measured ...

• Bottomhole pressure test

  A test that measures the reservoir pressure of the well, obtained at a specific depth or at the midpoint of the producing zone. A flowing ...

• Trip

  The operation of hoisting the drill stem from and returning it to the wellbore. V: shortened form of "make a trip."

• Gas anchor

  A tubular, perforated device attached to the bottom of sucker-rod pump that helps to prevent gas lock. The device works on the principle that gas, ...

• Shut-in bottomhole pressure test

  A bottomhole pressure test that measures pressure after the well has been shut in for a specified period of time. See bottomhole pressure test.

• Trip tank

  A small mud tank with a capacity of 10 to 15 barrels, usually with 1-barrel or h-barrel divisions, used to ascertain the amount of mud ...