Patent ID: 9670768
Date: 2017-06-06
CPC Classifications: B63B,E21B

Claim:
1. A coiled tubing deployment system, comprising: an offshore rig having a reel positioned thereon and coiled tubing wound on the reel, the offshore rig being deployable on water; a guide arch positioned on the offshore rig to receive the coiled tubing from the reel; a tubing guide fixed to the offshore rig and operatively coupled to the guide arch to receive the coiled tubing from the guide arch and to direct the coiled tubing into the water; a depth counter positioned at a first fixed point relative to the coiled tubing to measure a length of the coiled tubing deployed from the reel and to generate one or more length measurement signals; a weight sensor positioned at a second fixed point relative to the coiled tubing to measure a weight of the coiled tubing and to generate one or more weight measurement signals; a first set of bend sensors positioned at a first location on the tubing guide to measure real-time strain assumed by the coiled tubing when deployed into the water and thereby generate one or more first bend sensor signals; and a data acquisition system communicably coupled to the depth counter, the weight sensor, and the first set of bend sensors to receive and process the one or more length measurement signals, the one or more weight measurement signals, and the one or more first bend sensor signals, the data acquisition system providing an output signal indicative of real-time bending fatigue of the coiled tubing at select locations along the coiled tubing.