Patent ID: 8714263

Claim:
A method for making a lightweight subsea intervention package for use in servicing a subsea well, said subsea intervention package being operable for containing said subsea well while using at least one of tubing, coiled tubing, or wireline during said servicing of said subsea wells, said subsea intervention package comprising: providing a lower package attachable to said subsea well; providing that said lower package comprises at least one hydraulically actuated gate valve operable for both cutting said tubing, coiled tubing, or wireline and then closing to form a seal for sealing said subsea well; providing a cutting blade on a gate of said at least one hydraulically actuated gate valve with an aperture therethrough that defines a flow passageway when said valve is in an open position and wherein said aperture increases in diameter from one side of said gate to an opposite side thereof; providing an emergency disconnect package that is securable to a riser; and providing that said emergency disconnect package is replaceable with a subsea lubricator to permit subsea wireline operations without use of a riser, while said lower package remains attached to said subsea well.