| 摘要 |
Method for transporting/installing a subsea processing centre 10 comprising a towable frame 12, production fluid processing equipment supported by the frame and pipework in fluid communication with the production fluid processing equipment, may further comprise a flooding or filling valve for flooding a ballast tank for ballasting or injecting gas for de-ballasting and thereby control buoyancy. The method comprises: structure in water at a pre-towing location, ballasting to make the structure neutrally buoyant at or near to the water surface; for towing to installation location, controllably flooding at least one ballast tank attached to the frame or incorporated into the frame, so the structure becomes negatively buoyant at a pre-determined towing depth; towing the structure at the towing depth by controlled depth towing method and further flooding each ballast tank to lower the structure onto the seabed and coupling at least one fluid transportation pipe 92 to the structure pipework. |
