2022
DOI: 10.1021/acsomega.2c04185
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Solution and Analysis of Wellbore Temperature and Pressure Field Coupling Model under Lost Circulation

Abstract: The fluid in the annulus is in a variable mass flow state under the lost circulation condition, significantly affecting wellbore pressure distribution and the heat transfer efficiency between wellbore and formation. Therefore, based on the hydrodynamics and energy conservation law, a coupling model of transient wellbore temperature and pressure field under lost circulation conditions is established, which fully considers the casing program, bottom hole assembly, and heat source generated in drilling, as well a… Show more

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Cited by 7 publications
(2 citation statements)
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“…For a long time, researchers in various countries have mainly focused on numerical simulation methods and modeling analysis methods to study the temperature field and temperature-stress field of cemented sheaths in wellbore. Generally, based on the relevant theories of heat transfer, elastic-plastic mechanics, and the actual working conditions of cement sheath sealing in cemented wells, the mathematical model to analyze the temperature field of the wellbore is established by taking the case of wellbore-casing-cement sheath-surrounding rock as the research object.…”
Section: Introductionmentioning
confidence: 99%
“…For a long time, researchers in various countries have mainly focused on numerical simulation methods and modeling analysis methods to study the temperature field and temperature-stress field of cemented sheaths in wellbore. Generally, based on the relevant theories of heat transfer, elastic-plastic mechanics, and the actual working conditions of cement sheath sealing in cemented wells, the mathematical model to analyze the temperature field of the wellbore is established by taking the case of wellbore-casing-cement sheath-surrounding rock as the research object.…”
Section: Introductionmentioning
confidence: 99%
“…Marshall and Bentsen 30 provided four partial differential energy equations applicable to the drilling column, within the drilling column, in the annulus, and in the formations to solve the non-steady state heat transfer in the wellbore. Zhu et al [31][32][33] considered the influence of high temperature on wellbore drilling fluid circulation under different circumstances, and established a transient wellbore flow model suitable for dry hot rock, drilling fluid leakage or gas drilling. However, in the above methods, the physical properties of mud, such as density and viscosity, are treated as constants.…”
Section: Introductionmentioning
confidence: 99%