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Akin, John Edward. Martin, Joel 2011-07-25T02:05:03Z 2011-07-25T02:05:03Z 2010 Martin, Joel. "A computational analysis on an initial application of a Hemiwedge based sub-surface safety valve for use in ultra-deepwater oil wells and extreme high pressure, high temperature environments." (2010) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/61995">https://hdl.handle.net/1911/61995</a>. https://hdl.handle.net/1911/61995 THESIS M.E. 2010 MARTIN This study proposes and validates computationally the effectiveness of a novel, hemiwedge model for a sub-surface safety valve (SSSV). With the growing needs in the oil industry and new finds of ultra-deepwater reservoirs in the Gulf of Mexico (GOM), this SSSV will provide a small but necessary advancement to harvest these new oil reserves from extreme high-pressure/high-temperature (XHPHT) environments. Computational fluid dynamics (CFD) in the Ansys RTM CFX flow solver is used to study the flow properties of crude oil through the valve, while both AnsysRTM and SolidWorks RTM Simulation are used to perform stress and fatigue analyses and other solid mechanics studies. Analysis has shown this model to be effective in successfully and safely operating at high pressures (30,000 psi ) and high temperatures (450°F) over the desired life of the SSSV, providing a viable option for helping to recover new oil reserves found in the GOM and other XHPHT environments. application/pdf eng Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder. Mechanical engineering Petroleum engineering A computational analysis on an initial application of a Hemiwedge based sub-surface safety valve for use in ultra-deepwater oil wells and extreme high pressure, high temperature environments Thesis Text Mechanical Engineering Engineering Rice University Masters Master of Science open.access