초록 ▼

The invention relates to a system for intercoupling of two pipeline which are located in a subsea position. A second pipeline (12) is preinstalled on a bottom based template or frame (10), and a first pipeline (2) is initially freely positioned, located in a smaller or larger distance from said seco

The invention relates to a system for intercoupling of two pipeline which are located in a subsea position. A second pipeline (12) is preinstalled on a bottom based template or frame (10), and a first pipeline (2) is initially freely positioned, located in a smaller or larger distance from said second pipeline. Equipment is available for transport of said first pipeline to the bottom frame with said second pipeline, and equipment for positioning, holding and coupling of the pipelines, such that a pressure resistant, strong coupling is provided between the same. One aspect of the invention relates to a ring-shaped, open seat (18) mounted on the bottom frame (10) at a certain space in front of a terminator (14) on the end of the second pipeline (12) mounted on the bottom frame (10). For transport of the first pipeline (2), normally localized at a distance from said second pipeline, a combined gripping and transport tool (8) is utilized which in operational position is suspended at the bottom of a ROV (6), which gripping tool comprises at least one pair of opposed clawlike elements (40, 42) which can be pivoted from an outer position to an inner position, wherein the claw elements form a substantially circular space for circumscribing and holding said second pipeline.

대표청구항 ▼

[ What is claimed is:] [1.] A submersible tool, adapted for mounting on a ROV, to be used for coupling together subsea pipelines including a first pipeline (2) which initially is located on a sea bottom or in submerged position in the sea, and a second pipeline (12) including a terminator (14) which

[ What is claimed is:] [1.] A submersible tool, adapted for mounting on a ROV, to be used for coupling together subsea pipelines including a first pipeline (2) which initially is located on a sea bottom or in submerged position in the sea, and a second pipeline (12) including a terminator (14) which is preinstalled on a bottom based template or frame (10), which tool (8) is equipped with a gripping device for catching and holding the first pipeline for transport to the second pipeline mounted on the bottom frame, racterized in that the tool (8) is provided with opposed, pivotable clawlike means (40,42) which forcibly may be pivoted between an outer position wherein the claw means can grasp around an intermediately positioned pipeline (2,4) and an inner position wherein the pipeline is seized firmly and directionally stable inside the pivotable claw means, er driven means (56,56) mounted in the tool (8) adjacent the claw means in order to impart in the claw means positioned pipeline (2,4) an axial movement relative to the tool (8), which tool (8) at the front end is provided with a substantially ringshaped, forcibly pivotable, anchoring head (34) in position concentrially with the axis through the pipeline, which anchoring head (34) is adapted for anchoring in a complementary seat (18) mounted in position in front of said terminator (14) on the second pipeline mounted on the bottom frame (10).