Abstract: A riser adapter system for coupling a mono-bore riser to a dual bore subsea wellhead assembly with a main bore and an annulus bore, includes an upper adapter with an upper bore offset from a radially centered point of a downward facing face of the upper adapter. The upper bore is in fluid communication with a riser bore of the mono-bore riser. A lower adapter has a first end selectively mated to the downward facing face of the upper adapter and an opposite facing second end. The lower adapter has a lower bore offset from a central axis of the lower adapter. The downward facing face of the upper adapter and the second end of the lower adapter are alternately mated to the subset wellhead assembly so that the riser bore is alternately in fluid communication with the main bore and the annulus bore of the subsea wellhead assembly.

Abstract: A system for injecting fluids into a well having a fluid supply line that is connected to a mandrel at the top of the production tree. The system is designed so that all components of the system are packaged together and run to the production tree in one run. The production tree is designed to provide a pathway for the fluid to travel from the mandrel to the production bore within the tree, and then into the production tubing of a well.

Abstract: A system for injecting fluids into a well having a fluid supply tine that is connected to a mandrel at the top of the production tree. The system is designed so that all components of the system are packaged together and run to the production tree in one run. The production tree is designed to provide a pathway for the fluid to travel from the mandrel to the production bore within the tree, and then into the production tubing of a well.