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Modeling And Analysis Of Thermal Effects On A Fractured Wellbore During Lost Circulation And Wellbore Strengthening Processes, Ze Wang
LSU Master's Theses
To successfully prevent fracture propagation and combat lost circulation, a thorough understanding of the stress state in the near-wellbore region with fractures is imperative. One important factor that is not yet fully understood is how temperature variation during lost circulation affects pre-existing or newly initiated fractures. To address this problem, a 3D finite element analysis was conducted in this study to simulate the transport processes and state of stresses in the near-wellbore region during mud invasion into fractures. To take the thermal effects into account, a thermo-poro-elasticity model was coupled with flow and heat transfer processes. This study included a …
Effect Of Pipe Rotation On Casing Pressure Within Mpd Applications, Zahrah Ahmed Al Marhoon
Effect Of Pipe Rotation On Casing Pressure Within Mpd Applications, Zahrah Ahmed Al Marhoon
LSU Master's Theses
Well control is one of the most crucial sectors in drilling engineering. Human lives and safety depend on the correct execution of the engineering design. Managed Pressure Drilling (MPD) is a new technology that has recently emerged in the oil and gas industry. It has special well control abilities supported by the RCD to continue drilling or carry operations that involve pipe rotation, while circulating out a gas kick. This thesis examines the effect of pipe rotation on casing pressure profiles within MPD kick circulation application. The analysis was carried on real scale kick experiments. These experiments were carried in …