دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

the small movement in a newly fractured formation that results from the formation unloading build in streses.

n: an action, resulting from applied forces, which causes or tends to causes or tends to cause two contiguous parts of body to slide relative to each other in a direction parallel to their plane of contact.

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.

metallic foil or multiwire screen mesh that is used to prevent electromagnetic fields from penetrating or exiting a transmission cable.

n: single or multiple conductors surrounded by a flexible metal shield for the purpose of preventing spurious signals from being carried.

n: an inert gas that is used as a shielding medium in pipe welding. Its primary purpose is to prevent oxidation of the weld at the point of contact with the pipe metal by excluding oxygen in the air from the area around the molten metal.

n: a congressional act that requires ships transporting garbage and refuse to assure that the garbage and refuse are properly contained on board so that it will not be lost in the water as a result of inclement wind or water conditions.

n: the use of steel shot (ball bearings) in the drilling mud to hit the bottom of the hole as the shot leaves the bit jet with the mud, Experiments have shown that the rate of penetration is improved in some circumstances, but difficulties with handling the shot in the mud system have precluded wide use.

n: a conductor joining two points in an electrical circuit to form a parallel or alternative path through which a portion of the current may pass.