Patent ID: 7578038
Filing Date: 2009-08-25
Classification: B63B,E21B,Y10T

Abstract:
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.