18 July 2017

Surface casing

The first string of casing (after the conductor pipe) that is set in a well. It varies in length from a few hundred to several thousand […]
18 July 2017

Surge pressure

Increased hydrostatic wellbore pressure caused by downward pipe movement.
18 July 2017

Swab pressure

Lowered hydrostatic wellbore pressure caused by upward pipe movement.
18 July 2017

Swabbing

1) operation of a lifting device on a wireline to bring well fluids to the surface when the well does not flow naturally. This is a […]