Subsea methane hydrate production

An offshore methane hydrate production assembly (1), having a tubing (41) extending into a subsea well (5) that extends down to a methane hydrate formation (7) below the seabed (3). A submersible pump(45) is arranged in the tubing (41). A methane conduit (35,35) extends down from a surface installation (49). A well control package (15) landed on a wellhead (13) is positioned at the upper end of the subsea well (5). Moreover, an emergency disconnection package (25) is arranged between the methane conduit (35,135) and the well control package (15). The tubing (41) is suspended from the well control package (15). Other aspects of the invention are also disclosed. 种离岸甲烷水合物生产组件(1)，其具有延伸到海底井(5)中的管(41)，所述海底井(5)向下延伸到海床(3)下方的甲烷水合物地层(7)。潜水泵(45)被布置在所述管(41)中。甲烷导管(35、35)从表面设施(49)向下延伸。安置在井口(13)上的井控制套件(15)位于海底井(5)的上端处。此外，紧急断开套件(25)被布置在所述甲烷导管(35、135)和所述井控制套件(15)之间。所述管(41)悬挂在所述井控制套件(15)上。还公开了本发明的其他方面。