Heat injection process and apparatus
    1.
    发明授权
    Heat injection process and apparatus 失效
    注射过程和设备

    公开(公告)号:US5404952A

    公开(公告)日:1995-04-11

    申请号:US170578

    申请日:1993-12-20

    IPC分类号: E21B36/02 E21B36/04 E21B43/24

    CPC分类号: E21B36/02 E21B36/04

    摘要: A method for heat injection into a subterranean formation is provided. The method utilizes flameless combustion and a gas fired heater having an electrical heated surface for ignition of the gas. The absence of a flame eliminates the flame as a radiant heat source and results in a more even temperature distribution throughout the length of the burner. Flameless combustion is accomplished by preheating the fuel and the combustion air to a temperature above the autoignition temperature of the mixture. Preheating hydrocarbon fuel requires the inclusion of a carbon formation suppressant such as carbon dioxide or steam to prevent carbon formation.

    摘要翻译: 提供了一种注入地下地层的方法。 该方法使用无焰燃烧和具有用于点燃气体的电加热表面的燃气加热器。 没有火焰消除了作为辐射热源的火焰,并且在燃烧器的整个长度上导致更均匀的温度分布。 无焰燃烧是通过将燃料和燃烧空气预热到高于混合物自燃温度的温度来实现的。 预热烃燃料需要包含碳形成抑制剂如二氧化碳或蒸汽以防止碳形成。