Small irregularities inside an oil or gas pipeline can cause turbulence in the product flow, which increases friction loss leading to potentially high loss of liquids. The best practice in pipeline maintenance includes regular cleaning pig runs which clears the pipeline before debris has time to accumulate.
Transmission of petroleum of another person through a pipeline constructed by a first person to the extent that the pipeline is not required by its owner for the transmission of his own petroleum
A tube or system of tubes used for transporting crude oil or natural gas from the field, or from a processing terminal to a consumer or gathering system to the refinery (see picture of North Slope pipeline from Canada to North America)
Subsea pipeline system comprising two coaxial pipes, used to transport hot fluids (oil & gas). The inner pipe transports the fluid whereas the outer pipe carries the insulating material necessary to reduce heat loss to the sea. The outer pipe also protects the pipeline from the water pressure
When offshore transmission pipe is laid in an s-curve from the back of a lay barge, pipe tensioners are employed to maintain the s-curve and avoid the pipe buckling on the sea floor
A ram that closes around or cuts off drilling pipe in the blow-out preventer (BOP) to prevent escape of pressured fluids from the well-bore in an emergency situation
On a drilling rig where drilling pipe is stored adjacent to the derrick
