Oftentimes, the salt water produced during oil production is pumped back into a formation that is deep enough not to pollute shallow water sands. Many wells which are no longer commercial are converte [..]

A technique for increasing the flow of oil and/or gas out of a well. Hydrochloric acid is pumped into the oil-bearing rock. The acid dissolves limestone in the producing zone which increases porosity [..]

A large, specially designed valve that is mounted on top of the well during the drilling and completion stages of operation. The operator can close this valve to stop the flow of oil or gas in case of [..]

 Reservoir pressure at the bottom of the well.

Steel pipe which screws together and is lowered into the hole after drilling is complete. It is used to seal off fluids and keeps the hole from caving in.

Point in time after a well has been drilled to its objective depth where the Operator must decide whether to commit additional dollars to “setting pipe” and attempt a completion or to abandon the well [..]

 A process whereby cement is pumped into the hole between the walls of the hole and the outside of the casing. Upon hardening, the cement holds the pipe in place and prevents fluid movement in the hol [..]

A well that is capable of producing enough oil and gas to be economically viable to operate.

A general term referring to all activities necessary to put a well into production after it has been drilled to casing point.

The reduction in value of mineral deposits as it is produced.