Akin, John Edward.2011-07-252011-07-252010Gan, Xiaoge. "Quasi-static study on the fluid and structure interactions of the subsurface safety valves (SSSV) for extreme high pressure and high temperature (XHPHT) applications." (2010) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/62108">https://hdl.handle.net/1911/62108</a>.https://hdl.handle.net/1911/62108This thesis summarizes the preliminary design work of a new subsurface safety valve (SSSV) for extreme high pressure (30,000 psi) and high temperature (450&deg;F) (XHPHT) applications. Current SSSV designs are not reliable in current production environments and certainly will not be qualified to fail-safe under XHPHT conditions. In this design stage, a quasi-static study on the fluid structure interactions of a flapper SSSV is conducted. A parametric 3D CAD model of a flapper SSSV is built in Solidworks. Then computational fluid dynamics (CFD) analysis is conducted in AnsysRTM CFX. CFD results and the water hammer pressure surge calculated are successfully imported into AnsysRTM Workbench followed by a finite element analysis (FEA) of the stresses. Flappers with different sealing types are compared and summarized. This study is a necessary step for the next design stage, which supplies information that might result in a technical step change in the SSSV design.application/pdfengCopyright 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 engineeringPetroleum engineeringThesisTHESIS M.E. 2010 GAN