... & Gas strain range rotation fatigue life Diameter Growth rotate fatigue model rotational orientation coilperformance model Newman Completion Installation and Operations model prediction axial strain cross-section fatigue test radovan rolovic Coiled tubing operations reference 5 society...

... necessary to account for diameter growth when predicting CT life. When predicting CT longevity, low-cycle fatigue is determined using software to simulate planned operations. This helps minimize the risk of a specific CT string experiencing fatigue failure during the planned process. The software...

... verifies the correlation between the tubing life observed in controlled, full-scale, short-stroke fatigue tests and the fatigue life observed in field applications with significantly longer stroke lengths. Measurements and analyses of tubing-diameter growth during high-pressure cycling are included...

... the subject of extensive study, and several analytical and empirical models have been successfully developed. Diameter growth has received less attention, but recent industry trends are causing it to become more of a concern. These trends include: – Use of tubing for a greater fraction of its fatigue life...