Bypass fitting

A fitting, comprising:

• a body having at least two portions configured to be coupled together to form the body having a passage through the body, the passage being configured to allow at least a portion of a conduit to be located at least substantially lengthwise within the body;
• a first port located on the body, the first port being in fluid communication with the passage;
• a second port located on the body, the second port being in fluid communication with the passage;
• a first seal located on the passage wall between a first end of the body and the ports;
• a second seal located on the passage wall between a second end of the body and the ports;
• wherein the first and second seals, when activated, are configured to provide a seal to inhibit fluid flow into or out of the portion of the passage between the seals;
• and
• a channel formed in the body, the channel being configured to allow fluid flow at least partially circumferentially in the body between the first port and the second port so that when the conduit is tapped into through the first port, fluid from inside the conduit is allowed to flow around the outside of the conduit to the second port.

A method of installing a bypass fitting onto a portion of a subsea pipeline, comprising:

• coupling together at least two body portions to form a body having a passage through the body, the passage at least partially surrounding at least a portion of the subsea pipeline at least substantially lengthwise within the body;
• securing the body to the subsea pipeline;
• activating a first seal located on the passage wall between a first end of the body and a first port and a second port located on the body, the ports being in fluid communication with the passage;
• activating a second seal located on the passage wall between a second end of the body and the ports;
• tapping into the subsea pipeline through the first port;
• plugging flow in the subsea pipeline with a plugging head inserted through the first port;
• and
• allowing fluid from inside the conduit to flow at least partially circumferentially around the outside of the conduit from the first port to the second port through a channel formed in the body between the first port and the second port.