Abstract:
The clamping device (18) comprises at least four clamping components (30A to 30C) and connecting elements (32) comprising, for each clamping component (30A to 30C) at least one elastic tightening member (76) connecting a supporting member (40) of the clamping component (30A to 30C) with a supporting member (40) of a first adjacent clamping component (30A to 30C) and at least one elastic tightening member (78) connecting the supporting member (40) with a supporting member (40) of a second adjacent clamping component (30A to 30C). Each elastic tightening member (76, 78) comprises an elongated part and two end stops, each end stop cooperating respectively with a supporting surface (40), each elastic tightening member (76, 78) being longer than the transverse extent of a central lumen defined by the clamping components (30A to 30C), and protruding beyond the supporting members (40) connected by the elastic tightening member (76, 78).
Abstract:
The clamping device (18) comprises at least four clamping components (30A to 30C) and connecting elements (32) comprising, for each clamping component (30A to 30C) at least one elastic tightening member (76) connecting a supporting member (40) of the clamping component (30A to 30C) with a supporting member (40) of a first adjacent clamping component (30A to 30C) and at least one elastic tightening member (78) connecting the supporting member (40) with a supporting member (40) of a second adjacent clamping component (30A to 30C). Each elastic tightening member (76, 78) comprises an elongated part and two end stops, each end stop cooperating respectively with a supporting surface (40), each elastic tightening member (76, 78) being longer than the transverse extent of a central lumen defined by the clamping components (30A to 30C), and protruding beyond the supporting members (40) connected by the elastic tightening member (76, 78).
Abstract:
The present invention relates to a method for laying a submarine line (1) on the seabed (20) from the surface (30), to connect the lower end (la) thereof to a connection element (11a) on the seabed, characterized by carrying out the steps of: 1) positioning said submarine line suspended from the surface (30) in a substantially vertical position (7) with the lower portion (1-1) thereof, including a bending device extending between two points (la, 1b), referred to as attachment or guiding points, including at least one cable (5) and tensioning means (6-1 to 6-5) for said cable, which are capable of decreasing the cable length extending between the said two attachment or guiding points (la, 1b), from a maximum length L0 to a given lower limit value L1, and 2) moving the lower end (1c) of said submarine line, in such a manner as to separate (D) the lower end (1c) of said submarine line from the initial position thereof of step 1), and 3) if necessary, moving said submarine line (1) by bringing it close to the seabed (20), concomitantly with the additional lowering of said line, from the surface (30), and then 4) completing the positioning and the connection of said lower end (1c) of the line on the seabed.
Abstract:
The disclosure provides a system and method for installing subsea equipment, such as a pipeline and equipment associated therewith in a target area, generally having restricted overhead access. An anchor can be installed in the seabed and can include one or more sheaves. A pipeline can be provided, which can include related equipment and/or one or more coupling devices situated remotely from the anchor relative to the target area. A winch wire can be provided and is adapted to be directly or indirectly coupled across at least a portion of the target area to the pipeline. A transfer sling having a pull wire and an initiation wire can be coupled between the winch wire and pipeline to assist the winch wire pulling the pipeline into the target area and transferring a pipeline force from the sheave to the anchor independent of the sheave.
Abstract:
A resting device (1) of at least one portion of a linear structure (2) is for crossing an uneven underwater topography. The resting device (1) is suitable for supporting at least one portion of the linear structure (2) that defines a longitudinal direction (X-X) coincident with or parallel to the longitudinal development direction of the linear structure (2). The resting device (1) includes at least one buoyant element (3) and at least one tether (4), suitable for constraining the resting device (1) to a bed (5). The at least one buoyant element (3) is suitable for providing a sufficient buoyancy to keep the at least one tether (4) under tension. A deck (6) has a shape and material that allows distributed resting of at least one portion of the linear structure (2) on the resting device (1).
Abstract:
A flowline for hydrocarbon is laid on the seabed using the reeled lay method Successive pipe sections have opposing ends which are joined by an anchor collar butt welded to the opposing ends The pipe sections have a exterior jacket Anchor collars are affixed by butt welding between the ends of adjacent pipe sections Each anchor collar has a fixture protrusing radially outward having an outer diameter less than or equal to the outer diameter of the jacket The flowline has the same inner diameter at the pipe sections and the collar, and the pipe has the same outer diameter as the collar, while the protrusion protrudes outward from the exterior of the collar The flowline is anchored by unreeling it, applying a clamp to the collar, and anchoring the clamp to the seabed The jacket may expose the Fixture or protrusion or may be removed to enable the clamping