دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: in pipeline construction, a pipestraddling device, fitted with nozzles, spoil from beneath the pipe is removed and pumped to one side of the trench. The line then sages naturally into position in the trench.

n: in pipeline construction offshore, a pipe-straddling device fitted with nozzles on either side that is lowered by a bury barge. As water is pumped at high pressure through the nozzles, spoil from beneath the pipe is removed and pumped to one side of the trench. The line then sags naturally into position in the trench.

n: excavated dirt.

n: the technique of placing topsoil in a spoil bank separate from the rest of the materials excavated during pipeline construction so that it can be replaced in its origi- nal stratum during back-filling operations.

n: dredged spoil, solid waste, incinerator residue, filter backwash, sewage, garbage, sewage sludge, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt, and industrial, municipal, and agricultural waste discharged into water.