The gauge at the driller’s position that records data from the pit-level indicator.

Any law relating to the pressure, temperature, or volume of a gas.

Trade name for a type of pit-level indicator. see pit-level indicator.

The amount of the pore volume of a reservoir rock that is filled by water, oil, or gas and measured in routine core analysis.

1. a complete trip from the bottom of the wellbore to the top
2. pertaining to the mud and cuttings that are calculated or measured to come from the bottom of the hole since the start of circulation. circulation may be initiated after a static period, such as a trip, or from a given depth while [...]

A measure of the resistance of a fluid to flow. resistance is brought about by the internal friction resulting from the combined effects of cohesion and adhesion. the viscosity of petroleum products is commonly expressed in terms of the time required for a specific volume of the liquid to flow through a capillary tube of [...]

1. a measure of volume for petroleum products in the united states. one barrel is the equivalent of 42 u.s. gallons or 0.15899 cubic meters (9,702 cubic inches). one cubic meter equals 6.2897 barrels. 2. the cylindrical part of a sucker rod pump in which the piston-like plunger moves up and down. operating as a [...]

1. water produced with oil. it usually settles out within five minutes when the well fluids become stationary in a settling space within a vessel. 2. the measured volume of water that is present in a container and that is not in suspension in the contained liquid at observed temperature.

A small mud tank with a capacity of 10 to 15 barrels, usually with 1-barrel or h-barrel divisions, used to ascertain the amount of mud necessary to keep the wellbore full with the exact amount of mud that is displaced by drill pipe. when the bit comes out of the hole, a volume of mud [...]

1. the apparent loss of weight of an object immersed in a fluid. if the object is floating, the immersed portion displaces a volume of fluid the weight of which is equal to the weight of the object.
2. the upward force acting on an object placed in a fluid. the buoyancy force is equal to [...]

A volume of fluid, without proppant, injected in front of a frac job to establish frac width.

The elapsed time for mud to circulate from the suction pit, down the wellbore and back to surface. circulation time allows the mud engineer to catch “in” and “out” samples that accurately represent the same element of mud in a circulating system. circulation time is calculated from the estimated hole volume and pump rate and can be [...]

A process of dispose a hydrocarbons during clean-up, emergency shut downs or dispose a small volume waste streams of mixed gasses that cannot easily or safely be separated.

A burner on a remote line used for disposal of hydrocarbons during clean-up, emergency shut downs and for disposal of small volume waste streams of mixed gasses that cannot easily or safely be separated.

Produced gor = total gas (solution + free) production divided by the oil production volume. excludes gas lift gas.