دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: in pipeline construction. The process of delivering and distributing line pipe where and when it is needed on the right-of- way. Stringjng also includes the delivery of joints of special wall thickness and pipe grade to specific locations. such as road crossings. where heavy wall thickness may be specified by the contract or by regulations. Pipe is strung so that the movement of livestock and vehicles is not impeded.

n: 1. a well nearing depletion that produces a very small amount of oil or gas, usually ten barrels per day or less. 2. a shipper head. 3. a column wherein absorbed constituents are shipped from absorption oil. The term is applicable to columns using a shipping medium, such as steam or gas.

the seal at the top of the BOP around coiled tubing or pipe during snubbing.

n: in a glycol dehydration unit, hot gas that is bubbled through rich glycol to ship water from the glycol and carry it away as vapour.

n: In a sucker-rod pump, one complete round of the polished rod (surface stroke). On each stroke, a fixed volume of liquid is lifted. This volume is related to the cross-sectional area of the pump and the length of the stroke.

the number of rod strokes per minute of the beam ift unit. Set by depth, viscosity of fluid, gas content, weight of fluid supported, etc.

the number of strokes that a mud pump makes in one minute. SPM times time times pumper chamber volume equals volume displaced. Can be compared to volume recovered.

n: The inner frictional resistance caused by grains buildup and construction.

n: drill pipe, drill collars, casing, or tubing that has inadvertently become immovable in the hole. Sticking may occur when drilling is in progress, when casing is being run in the hole. or when the drill pipe is being hoisted.

n: The portion of the drillstring that cannot be rotated or moved vertically.

n: a device that prevents 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 pump, the polished rod operates through a stuffing box, preventing escape of oil and diverting it into a side outlet to which is connected the flow line leading to the oil and gas separator or to the field storage tank. For a bottomhole pressure test, the wireIine goes through a stuffing box and lubricator, allowing the gauge to be raised and lowered against well pressure. The lubricator provides a pressure-tight grease seal in the stuffing box.

n: The sealing box used to seal off moving component.

a device using an elastomer seal (and sometime oil or grease injection) that provides a pressure barrier around a moving tubular or wireline.

seal test valve.