UNDERWATER MANIFOLD SYSTEM Russian patent published in 2020 - IPC E21B43/17 E21B33/35 

FIELD: underwater production of hydrocarbons.

SUBSTANCE: proposed group of inventions relates to receiving and distributing equipment. Modular underwater distribution unit of hydrocarbon production includes primary manifold and one or more number of jointly arranged expansion structures. Each of expansion structures is located within 100 meters from primary manifold. Primary manifold comprises first connections for connection with, at least, a riser and an umbilical from a surface installation and second connections for connection with at least one expansion structure. At least one expansion structure includes a secondary manifold, comprising first connections, connected to second connections of primary manifold, second connections for connection with at least one additional expansion structure and third connections for connection with at least well head and/or template plate. Hydrocarbon production system includes surface production platform connected by means of water-separating column and umbilical cable with distributing unit. System is configured to transmit electrical control signals, electric power and injected fluids into each of the wells, first through the primary manifold, and then through the secondary manifold. Disclosed is method of connection of wellhead with surface production platform by modular underwater distributing unit.

EFFECT: possibility of increasing the throughput capacity of the distribution unit as new wells are connected and maintaining reliability by optimizing the number of connecting elements.

14 cl, 9 dwg