دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: A type of vertical seismic profile in which the source is a shear-wave source rather than a compressional-wave source. Shear waves travel through the Earth at about half the speed of compressional waves and respond differently to fluid-filled rock, and so

a visually apparent oil layer on water. Depending on the hydrocarbon type, sheens can develop with as little as 50 to 100 ppm.

n: the longitudinal curve of a vessels deck in a vertical plane. As a result of sheer, a vessels deck height above the baseline is higher (or lower) at the ends than amidships.

a thick sand body without significant vertical or areal barriers.

n: a thin, often tapered piece of material used to fill in space between things (such as for support, leveling, or adjustment of fit). ship drift n: a method that uses a ship itself as an instrument to measure cruuents. Navigation equipment on board measures the currents effect on the vessel.

n: A layer material be used as spacer or for protection.

n: A kind of safety relief expansion joint ,which be used to decrease the vibration.



a mechanical dampener above a perforating gun that attenuates some of the acceleration force created by firing the gun.

n: The internal-aerating sealing container at the import of the suction valve,which can make the velocity of fluid stability.

n: a vibration dampener.

n: a device placed at the end of or beneath an object for various purposes (e.g., casing shoe, guide shoe).

n: 1. The bottom of the casing string, including the cement around it, or the equipment run at the bottom of the casing string. 2.A short assembly, typically manufactured from a heavy steel collar and profiled cement interior, that is screwed to the bottom o

n: The cement slurrys volume in the shoe-joint when cementing.