Temporary disintegratable plug for an open-ended oil pipeline

Details Temporary disintegratable plug for an open-ended oil pipeline Temporary disintegratable plug for an open-ended oil pipeline

F - Mech Eng,Light,Heat,Weapons

16

L

189/10, 189/12

F16L 55/11 (2006.01)

Patent

CA 2019946

The plug is formed of fibrous material held together by a wax binder in the form of a cylindrical body. The body is adapted to fit closely into the bore of an open-ended pipeline. The body has a reduced diameter inner end portion. A thick band of asphalt-base sealant is applied to the inner surface of the pipe at the location to be taken up by the reduced diameter portion. The vertical inner end surface of the plug is also coated with the sealant. When the plug is inserted into the line, its close fit holds it in place and the sealant seals across the bore. The plug functions to isolate residual hydrocarbon vapours in the line while a new section of pipe is tied in. The plug disintegrates when contacted with the subsequent oil flow.

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