Temperature Effects on Casing and Tubulars in Steam Injection Wells
Michael Lombard will present “Temperature Effects on Casing and Tubulars in Steam Injection Wells” on November 18 – 20, 2014 at SPE Thermal Well Integrity and Design Workshop, Banff Springs Hotel: Abstract available at: http://www.spe.org/events/14abn4/pages/about/index.php
A primary concern of the Petroleum Engineer is protection of wellbore casing and cement. In a steam injection wells heat flux occurs across the entire length of injection tubing into the wellbore annulus, casing, cement and formation. Steam injection wells completed with bare(non-insulated) tubing strings offer minimum resistance to this heat flux and both casing and cement will have elevated temperatures. This temperature effect causes thermal elongation and thermal stress on the casing directly proportional to the increase in casing temperature. Our presentation will examine:
- casing elongation
- tensile loading
- thermal stress
- the potential for buckling
- the use of Vacuum Insulated Tubing (VIT) as one possible solution to mitigate these potential problems.
Contact Michael for additional information about this presentation or vacuum insulated tubing.