| 摘要 |
A vertical receiver antenna (1) device is described, including first and second receiving electrode units (11a, 11b) interconnected by a receiver antenna cable (12) and connected to means (7, 8, 9, 23) for the electromagnetic surveying of electrically resistive targets (4) potentially containing hydrocarbons, the receiver antenna (1) being arranged in a tubular, non-magnetic antenna housing (2) arranged vertically in subsea uncompacted material (42), and one of the first and second receiving electrode units (11a, 11b) being connected in an electrically conductive manner to the underlying structure (42, 43), and the other one of the first and second receiving electrode units (11a, 11b) being arranged in a portion of the antenna housing (2) distantly from the first one of said first and second receiving electrode units (11a, 11b). There is also described a method of installing a vertical receiver antenna (1) in subsea uncompacted material (42). |
