Wellbore Temperature-Pressure Coupling Model Under Deep-Water Gas Well Intervention Operation

The accurate forecast of wellbore temperature and pressure during intervention operations is critical to the long-term exploitation deep-water oil gas resources. A prediction model was constructed in seawater formation sections based on Hasan Kerber’s gas-liquid two-phase flow heat transfer integrated with features operations. Simultaneously, exchange produced by change fluid rate caused tool placement evaluated. developed operation sections, friction gradient modified introducing operation.The established coupled solved iteratively, disturbance law field induced investigated. results show that gradually decreases when removed; at mudline high production higher, wellhead low; size weakly sensitive wellbore; are running speed. aforesaid findings have some guiding relevance for design plan, as well prevention hydrate cleaning blowout.