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APPARATUS, METHOD AND WELLBORE INSTALLATION TO MITIGATE HEAT DAMAGE TO WELL COMPONENTS DURING HIGH TEMPERATURE FLUID INJECTION
APPARATUS, METHOD AND WELLBORE INSTALLATION TO MITIGATE HEAT DAMAGE TO WELL COMPONENTS DURING HIGH TEMPERATURE FLUID INJECTION
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机译:减轻高温流体注入过程中对组件的热损伤的装置,方法和气井安装
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摘要
Apparatus, method and wellbore installation to mitigate heat damage to well components during high temperature fluid injection operations such as steam injection from surface through a wellbore. The apparatus includes an injection tubing that conveys the high temperature fluid to an injection zone and an isolation packer through which a lower end of the injection tubing passes. A pipe extends alongside the injection tubing with an outlet end close above the packer. When the apparatus is installed in a wellbore, the pipe creates a cooling fluid circuit that flows from just above the packer up in the wellbore alongside the outer surface of the injection tubing to surface and then back into the pipe.
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