| 摘要 |
<p>A subsea pump system has at least a first pump 210 and a second pump 220 configured to pump fluid from a source to a target. The system has a controller 230 configured to automatically select at least one of the first and second pumps. The controller may be configured to select the first pump at a lower fluid pressure range and the second pump at a higher fluid pressure range. The pumps may be hydraulic pumps driven by a drive fluid supplied by a remotely operated vehicle (ROV). In a second aspect, a method of operating a blowout preventer (BOP) on an oil or gas well is described, wherein a drive fluid is pumped by a dual pump system where the pump for pumping the drive fluid is automatically selected.</p> |
