Investigation of fatigue failure in composite versus steel coiled tube for application in mine site drilling
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Composite coiled tubing could be an economic alternative to the use of steel for exploration drilling due to its potentially greater reliability and higher fatigue life. This PhD study investigated the fatigue life of steel versus composite tubes using both numerical modelling and laboratory scale tests. Results were validated by statistical analysis and confirmed that composite tubing has a higher fatigue life, and potentially opens up a new market place for composite drill pipe.
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Mishani, S.; Evans, Brian; Rasouli, V.; Roufail, R.; Soe, S. (2015)In a field operation that uses coiled tubing in its applications, fibre-reinforced polymer matrix composite tubing is seldom used. Fibre-composite coiled tubes offer advantages, compared to steel material, through a ...
Roufail, R.; Rasouli, Vamegh; Mokaramian, A.; Kamyab, Mohammadreza; Lagat, C.; Cavanough, G. (2013)Mineral exploration is in a race to employ drilling technology that can perform the exploration and drilling investigation in a fast and inexpensive manner. After an extensive study of the available drilling technologies ...
Roufaill, Reem; Rasouli, Vamegh (2012)Fatigue life of Coil Tubing is known for its low cycle due to multiple bend events. Since fatigue failure is usually catastrophic, the tube is commonly withdrawn from service earlier based on its operation life database. ...