Patent ID: 6336238
Filing Date: 2002-01-08
Classification: B08B,F16L

Abstract:
A pig launcher adapted for subsea installation to a subsea pipeline manifold by subsea engagement with a mating connector on the subsea pipeline manifold for launching pigs into a subsea pipeline and for receiving pipeline fluid from the subsea pipeline manifold, said pig launcher comprising:a dual-bore collet connector adapted for the subsea engagement, the dual-bore collet connector having a first bore for passing the pigs from the pig launcher and at least a second bore for receiving the pipeline fluid; and a magazine for storing the pigs and indexing at least one pig to at least one launch position, the magazine being coupled to the dual-bore collet connector for ejecting a pig at the launch position into and through the first bore of the dual-bore collet connector in a stream of the pipeline fluid received through the second bore of the dual-bore collet connector.