UNDERVANNS-PRODUKSJONSSYSTEM

摘要

This invention refers to a subsea system for oil or gas production and water injection which operates without divers' assistance and with guide-cables, said system consisting of a template (50) equipped with 10 drilling mouths (53) arranged in two rows of 5, each said drilling mouth (53) consisting of a guide-pipe (54) whose upper end presents an external section for locking purposes and a guide-base (55) provided with four posts (56) removable by ROV; a central space for the setting of a manifold (60) through four posts (63) to guide the installation and means to ensure the final positioning of the manifold (6) within the established tolerances; bases of the export-line terminals (64) located at one of the ends of the template (50), each said base (64) being provided with two guide-posts removable by ROV; in addition to reaction posts (66) which orient the lowering of the pulling and connection tools and transfer the stresses to the structure of the template, receptacles (67) to lock the export-line terminals; analogous bases located in the other end of the template for the control umbilical units; guides (69) for piles arranged at each one of the four vertices of the structure (68) of the template; and a manifold (60) including a base-structure (70) where are attached the pipes, the hydraulic and electric control lines, the terminals (73) for connection to the WCTs (74) and to the MSTs (75), and terminals (76, 77) for connection to the export lines and to the hydraulic and electric umbilical units, as well as to the WCTs (74), MSTs (75) and their control system.