دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a road crossing in which the pipeline ditch cuts through the road instead of being bored under it An open-cut crossing is generally used in sparsely populated areas where the right- ofway crosses little-used dirt or gravel roads. Open-cut crossings are more convenient than bored crossings and also hold down costs.

n: laying of a pipeline under a roadbed or through a road.

n: in pipeline construction, a boring technique sometimes used for road crossings in which a large amount of liquid is pumped into the hole outside of the pipe to reduce friction.

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: in pipeline construction, a road crossing bored without casing. The carrier pipe itself is pushed under the roadbed by the boring machine. To reduce potential damage to the coating, slick boring is frequently used. See slick boring.