دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: fracture gradient following uncovered formation which is under the shoe.

n: pipe above which is over free point on freeze in drill column.

n: a process that small fish which jamed in well or drilling rig through steps of washover,oil bubble or jarring is able to raise or continue to down.

n: a process that drill column which jamed in well or other columns through free stick steps of jarring,oil bubble or washover is able to raise or continue to down.

n: the measured values over which a meter or other measuring instrument is intended to measure, specified by their upper and lower limits.

n: in improved recovery, the amount of coke available for in situ combustion. measured in pounds per cubic foot of burned area. Coke is formed by thermal cracking and distillation in the combustion zone. The amount of available coke depends on the composition of the reservoir cn* oil.

n: a device installed on a diesel engine to reduce the amount of smoke coming out of the engines exhaust. If the engines governor delivers more fuel than air to the engine, the engine smokes too much. A fuel modulator makes the governor increase the fuel supply only at the same rate as the air increase. Such rate control holds down the black smoke from the engine exhaust during acceleration or sudden loading. See governor.

n: the take out cores length is equal to core run,that is a hundred percent yield.

n: hole which is caused by oversize bit.



a wellbore drilled with a full gauge bit (maintained initial diameter).

n: a device used to protect electrical equipment from overload. It has a wire that melts at high temperature to open the circuit.