A rotary tool that is hung from the rotary hook and traveling block to suspend the drill stem and to permit it to rotate freely.

It also provides a connection fore the rotary hose and a passageway of the flow of drilling fluid into the drill stem.

Also called a suction tank, sump pit, or mud suction pit.

See suction tank.

A type of manifold used in squeeze jobs.

Total amount of solids in a drilling fluid as determined by distillation.

Includes both the dissolved and the suspended or undissolved solids.

To pull out.

The initial loss of mud solids by filtration, making formations easier to drill.

See filtration loss.

The determination of the percentage of particles that pass through several screens of graduated fineness

The deterioration of metal caused by contact with carbon dioxide in water.

The careful application of pump pressure to force a treatment fluid or slurry into a planned treatment zone.

In most cases, a squeeze treatment will be performed at downhole injection pressure below that of the formation fracture pressure.

In high-pressure squeeze operations, performed above the formation fracture pressure, the response of the formation and the injection of treatment fluid may be difficult to predict.

1.

A cylindrical or tubular projection, relatively small in diameter, that extends below a downhole tool and helps to guide the tool to a designated spot (such as into the center of a portion of stuck pipe).

2.

A device for guiding pipe and lowering it to the water bottom as it is being laid down by a lay barge.

It is hinged to permit adjustments in the angle of pipe launch.

The depth in the hole at which the drill stem, tubing, or casing is stuck.

A helper on a truck.

A device attached to pipeline to permit continuous sampling of the oil, gas, or product flowing in the line.

A heavy weight or bar placed on or near a lightweight wireline tool.

The bar provides weight so that the tool will lower properly into the well.

A device to salvage casing on a p&a job.