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A Wellbore Hydrothermal Simulation Technology Applicable to Supercritical Conditions
Satoshi UJYO, Masami HYODO, Takashi OKABE, Shigemi NAGANAWA, John BURNELL
[Geothermal Energy Research & Development Co., Ltd., Japan]
Drilling simulations under supercritical conditions have been very limited worldwide. In this study, we developed GEOTEMPSC, a thermal-hydraulic simulator capable of modeling drilling behavior under supercritical conditions, by integrating a supercritical calculation module (Cooper and Dooley, 2007) with GEOTEMP2 (Mondy and Duda, 1984). Two reservoir scenarios with distinct pressure–temperature distributions were assumed, and a 5,000 m well, including casing operations, was modeled to evaluate temperature profiles near the wellbore and the cooling effects during drilling. This presentation highlights the simulation methodology and discusses key findings.
Topic: Drilling