See trip margin

The slight increase in mud weight needed to offset the loss in hydrostatic pressure when the riser is disconnected from the ss bope and the hydrostatic pressure of the mud from rkb to the mud line is replaced by the hydrostatic pressure of weight of the column of sea water from sea level to the [...]

Heavy crude oil or extra heavy crude oil is any type of crude oil which does not flow easily. it is referred to as “heavy” because its density or specific gravity is higher than that of light crude oil.
heavy crude oil has been defined as any liquid petroleum with an api gravity less than [...]

Abbr. health, safety and environment.

A device that prevents leakage along a piston, rod, propeller shaft, or other moving part that passes through a hole in a cylinder or vessel. it consists of a box or chamber made by enlarging the hole and a gland containing compressed packing. on a well being artificially lifted by means of a sucker rod [...]

A floating production, storage and offloading vessel (fpso; also called a “unit” and a “system”) is a type of floating tank system used by the offshore oil and gas industry and designed to take all of the oil or gas produced from nearby platforms or templates, process it, and store it until the oil or [...]

The small amount of additional mud weight carried over that needed to balance formation pressure to overcome the pressure-reduction effects caused by swabbing when a trip out of the hole is made.

Pull on pipe over and beyond its weight in either air or fluid

1. to shut in a well temporarily that is capable of producing oil or gas.
2. to close the blowout preventers on a well to control a kick. the blowout preventers close off the annulus so that pressure from below cannot flow to the surface.
3. to close a valve to stop or isolate fluid flow. the [...]