Method for connection of underwater pipelines and a tool for such connection

Apparatus for the remote connection of underwater conduits, comprising:

• a tool including
• means for connecting the tool to a first, movable conduit having a longitudinal axis,
• means for moving the tool relative to a second, stationary conduit, said means for moving the tool comprising
• at least one pull-in winch having a pull-in wire,
• at least one alignment and stroking hydraulic actuator having a piston rod,
• at least one moment arm, and
• means for locking the first and second conduits together in an end-to-end relationship,
• a collar device including
• gripping means for releasable attachment to the first conduit,
• first anchoring means for securing an end of the wire to the collar device,
• second anchoring means for securing the hydraulic actuator to the collar device, and
• at least one stop intended to interface with the moment arm,
• wherein the first anchoring means and the longitudinal axis of the first conduit are located in a first horizontal plane,
• the stop is located in a second horizontal plane,
• the second anchoring means are located in a third horizontal plane, the second horizontal plane being located below the first horizontal plane and the third horizontal plane being located above the first horizontal plane.