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Composite coiled tubing for extended reach in horizontal oil wells

conference contribution
posted on 24.05.2018, 00:00 by Andrei CostacheAndrei Costache, C Berggreen
Conventional steel coiled tubing cannot reach along the entire length of very long horizontal oil wells. A lighter and more buoyant coiled tube is made possible using composite materials. The high stiffness to weight ratio of fiber reinforced polymers, coupled with a lower coefficient of friction, has the potential of greatly extending the reach in horizontal oil wells. This study shows how to design composite coiled tubing and gives a comprehensive discussion about the most influential parameters. Several solutions, using glass-fiber and carbon are considered. Finite element models are used to calculate the buckling loads and the corresponding interlaminar stresses. The very positive results obtained during this study show that composite coiled tubing systems are vastly superior to their steel counterparts and that in the future, these will become the new industry standard.

Funding

Other

History

Parent Title

Proceedings of the ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2017) June 25-30, 2017, Trondheim, Norway

Volume

4

Start Page

1

End Page

10

Number of Pages

10

Start Date

25/06/2017

Finish Date

30/06/2017

ISBN-13

9780791857687

Location

Trondheim, Norway

Publisher

American Society of Mechanical Engineers

Place of Publication

New York, NY.

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Technical University of Denmark

Era Eligible

Yes

Name of Conference

ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2017)

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