Patent 8218826 was granted and assigned to Schlumberger on July, 2012 by the United States Patent and Trademark Office.
A measurement system is provided that includes an integrated optics unit which measures at least one variable of the movement of a conveyance system relative to an oil well during an oil well operation, wherein the at least one variable is a direction of motion, a speed of movement, or a length of movement of the conveyance system.