A plug in the flow line at the well head which has a small hole drilled through it through which oil flows, and which keeps a well from flowing at too high a rate.

The unit weight of fluid, e.g., pounds per gallon.

The state in fluid dynamics of a fluid in motion is determined by the type of fluid (e.g., newtonian, plastic, pseudoplastic, dilatant); the properties of the fluid such as viscosity and density; the geometry of the system; and the velocity.

Thus, under a given set of conditions and fluid properties, the fluid flow can be described as plug flow, laminar (called also newtonian, streamline, parallel, or viscous) flow, or turbulent flow.

The surface pipe through which oil travels from a well to processing equipment or to storage.

To let a well flow at too high a rate.

Also called a rotary help.

See rotary helper.

A single unit which acts as an oil and gas separator, an oil heater, and an oil and water treater.

Process of separating, or breaking down, an emulsion into oil and water in a vessel or tank on a continuous basis (i.e., no interruption of flow of emulsion into the tank or vessel).

Compare batch treating.

A well flowing oil at irregular intervals.

A well which produces oil or gas without any means of artificial lift.

The surface pipes through which oil travels from the well to storage.

When the opposite occurs of what is intended in a drilling fluid.

In an invert water-in-oil emulsion, the emulsion is said to be flipped when the continuous and dispersed phases reverse.

The coagulation of solids in a drilling fluid, produced by special additives or by contaminants.

Abbreviation: flocculates.

1.

To finish a job.

2.

To use flanges to make final connections on a piping system.