دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the legal right of passage over public land and privately owned property;also the way or area over which the right exists. The width of a right-of-way varies according to contract specifications and individual easements, but it is generally between 50 and 100 feet (15 and 30 metres).

n: in pipeline construction, the process of returning a rightof- way to its original condition or better after the pipeline has been completed. Rightof- way restoration depends on legal stipulation in the contract with the pipeline owner and agreements made with individual landowners.

n: A kind of physical property of resisting bending and deformation of the bottomhole make up of string.

n: A kind of ways that grading the make up of string that smaller than 30m to 10 grade.

n: a program developed under the National Fishing Enhancement Act that led to the state sponsorship of the conversion of rigs to artificial reefs in the Gulf of Mexico.

abbr: run-in-hole.

running pipe in the hole.

n: see piston ring.

a not re-usable, metal-to-metal seal. Used between spools of a wellhead and in other equipment such as flanges.

n: in a rotary table assembly, a circular, ring-shaped device with projections (teeth) that engage a beveled gear (a pinion) on the end of a drive shaft. The drive shaft is usually driven by a chain-and sprocket arrangement from the drawworks. When engaged, the drive shaft turns the pinion, which meshes with the ring gear, to turn the rotary table.

n pl: the grooves that hold the piston rings in pistons.