APPARATUS FOR MAKING AN UNDERWATER PIPELINE CONNECTION

A lateral pipeline being laid is connected to a main pipeline lying on the bottom of the ocean by a tie-in assembly that is connected to the lateral line above the surface of the water. The main line is equipped with a stub section of pipeline to which the lateral is to be connected. The angle betwe...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	OLIVER J,US, WEDEL A,US
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A lateral pipeline being laid is connected to a main pipeline lying on the bottom of the ocean by a tie-in assembly that is connected to the lateral line above the surface of the water. The main line is equipped with a stub section of pipeline to which the lateral is to be connected. The angle between the lateral and the main line is measured and from this the tie-in assembly is designed. This assembly also includes two ball and socket type joints that permit limited misalignment between the sections of the tie-in assembly and the stub section of the pipeline connected to the main line and also allows relative rotation between at least two portions of the tie-in assembly. A connector assembly is used to connect the tie-in assembly to the stub pipeline section. An actuator is releasably connected to the tie-in assembly above the surface of the water and lowered with the tie-in assembly into the water to actuate the connector assembly to connect the tie-in assembly and the stub pipeline section. This actuator can then be recovered and used again.