초록 ▼

Apparatus and methods for remotely installing vortex-induced vibration (VIV) reduction and drag reduction devices on elongated structures in flowing fluid environments. The apparatus is a tool for transporting and installing the devices. The devices installed can include clamshell-shaped strakes, sh

Apparatus and methods for remotely installing vortex-induced vibration (VIV) reduction and drag reduction devices on elongated structures in flowing fluid environments. The apparatus is a tool for transporting and installing the devices. The devices installed can include clamshell-shaped strakes, shrouds, fairings, sleeves and flotation modules.

대표청구항 ▼

We claim: 1. A method of remotely installing a clamshell device around an element having a diameter, the method comprising: (a) positioning a clamshell tool adjacent to the element, wherein the clamshell tool carries the clamshell device selected from the group consisting of vortex-induced vibratio

We claim: 1. A method of remotely installing a clamshell device around an element having a diameter, the method comprising: (a) positioning a clamshell tool adjacent to the element, wherein the clamshell tool carries the clamshell device selected from the group consisting of vortex-induced vibration reduction devices and drag reduction devices; (b) moving the clamshell tool in an open configuration to position the clamshell device around the element; (c) closing the clamshell tool from the open configuration to a closed configuration to close the clamshell device around the element, wherein the device covers from about 50% to about 100% of the diameter of the element; (d) securing the device in position around the diameter of the element; and (e) removing the tool and leaving the device secured around the element. 2. The method of claim 1, wherein the tool of step (a) carries at least two clamshell devices, the method further comprising: (e) repeating steps (a), (b), (c), and (d). 3. The method of claim 1, wherein the clamshell device installed is an ultra-smooth sleeve. 4. The method of claim 1, wherein the clamshell device installed is a flotation module. 5. The method of claim 1, wherein the clamshell device installed is a fairing. 6. The method of claim 1, wherein the clamshell device installed is a strake. 7. The method of claim 1, wherein the tool is operated underwater with a remotely operated vehicle.