Glossary of field terms

Common abbreviations you may see in daily field reports and correspondence.

BOP: Blowout preventer: a set of valves on the wellhead that can seal the well to control pressure during drilling and well work
CIBP: Cast iron bridge plug: a plug set inside the casing to seal off a lower section of the well
COHWR: Come out of hole with rods: pull the sucker rods out of the well
COHWT: Come out of hole with tubing: pull the tubing out of the well
HPF: Holes per foot: the number of perforations shot per foot of casing
MIRU: Move in, rig up: move the rig and equipment onto the location and set up
RIHWR: Run in hole with rods: lower the sucker rods into the well
RIHWT: Run in hole with tubing: lower the tubing into the well
SDPM: Shut down operations for the night
SLD: Sand line drill
SN: Seating nipple: a fitting in the tubing where the downhole pump seats
SW: Salt water: water produced from the well along with oil and gas
SWD: Salt water disposal: disposing of produced water, usually by injecting it into a permitted disposal well
TA: Tubing anchor: a tool that holds the tubing in place inside the casing
Yellow Dog: Small centrifugal pump
RD: Rig down: take down the rig and equipment when the work is finished
RU: Rig up: set up the rig and equipment on location