| 摘要 |
<p>An offshore hydrocarbon recovery system comprises a plurality of wells each terminated by a subsea structure, a subsea flowline network interconnecting the subsea structures, and a riser connected to the flowline network for delivering hydrocarbons from the flowline network to a surface production unit. Gas is injected at the subsea structures into the associated wells, and the gas injection is controlled such that the production pressure for each of the wells connected to the flowline system is substantially the same. All the wells can thus be produced at a similar pressure and the wells can be connected via a subsea co- mingling manifold using fixed production chokes.</p> |
