Patent ID: 8672038

Claim:
A subsea tree assembly mountable adjacent to a subsea production flowline, comprising: a subsea tree with a production line therein, said subsea tree comprising an upper end; a retrievable bridge comprising a production line connector and a production flowline connector operable for connection and fluid communication with said upper end of said subsea tree and with an upwardly directed end of said production flow line, respectfully, said retrievable bridge defining a fluid flow passageway therein, whereby said production line of said subsea tree is in fluid communication with said production flowline only through said retrievable bridge and only after said retrievable bridge is connected to said subsea tree and said production flowline; an annulus connection between said retrievable bridge and an annulus line of said subsea tree, said annulus connection being the only annulus line fluid connection between said retrievable bridge and said annulus line of said subsea tree, and an annulus access valve for access to said annulus line located in said subsea tree, an annulus master valve for said annulus line located in said subsea tree, and an annulus line to production line crossover valve located in said subsea tree to provide a valve between said annulus line and said subsea tree production line within said subsea tree.