Month: July 2009

A well that has been temporarily shut in but not plugged, thus with the intention of re-working it some day. The act of isolating the completed interval or intervals within a wellbore from the surface by means of a cement retainer, cast iron bridge plug, cement plug, tubing and packer with tubing plug, or any combination thereof

An operation used to determine temperatures at various depths in the wellbore. It is also used to determine the height of cement behind the casing and to locate the source of water influx into the wellbore

Rock-deforming processes and resulting structures that occur over large sections of the lithosphere