Patent ID: 7793724

Claim:
A subsea manifold system for producing hydrocarbons from a subsea well, the system comprising: a) two or more subsea trees, each subsea tree connected to a subsea well; b) a manifold connected to each of the subsea trees; c) a first common riser having a first flowline connecting the manifold to a vertical riser portion of the first common riser, the first common riser further comprising a first hybrid riser buoy and a flexible jumper interconnecting the first hybrid riser buoy and a disconnectable buoy capable of connecting to a floating vessel; wherein production, maintenance and workover of each subsea well is through the first common riser; and d) a second common riser having a second flowline connected to the manifold, a second hybrid riser buoy and a flexible jumper interconnecting the second hybrid riser buoy of the second common riser and the disconnectable buoy; wherein the flexible jumpers horizontally balance the disconnectable buoy between the first and second hybrid riser buoys within a balancing plane defined by the height of the first and second hybrid riser buoys.