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    • 10. 发明公开
    • Thermally activated well perforating safety system
    • 热激活井射孔安全系统
    • EP1930541A2
    • 2008-06-11
    • EP07254713.6
    • 2007-12-05
    • HALLIBURTON ENERGY SERVICES, INC.
    • Grattan, Antony F.Burleson, John D.George, Flint R.Hales, John H.Harrison, Ryan A.
    • E21B43/1185F42C15/34F42C15/36F42C15/44
    • E21B43/1185F42C15/005F42C15/34F42C15/36F42C15/44
    • An explosives safety system (30,32) includes an explosive component (46), a blocking member (54) displaceable to selectively permit and prevent detonation of the explosive component, and a thermal actuator (56) responsive to temperature change and configured to displace the member in response to the temperature change. Another explosives safety system includes a thermal actuator with a material having a volume variable in response to the temperature change, and detonation of the explosive component being selectively permitted and prevented by the actuator when the material volume changes. A method of preventing undesired detonation of an explosive component includes the steps of: providing a material having a volume variable in response to a change in a temperature; positioning the material and the explosive component in a well, thereby increasing the material temperature; increasing the material volume in response to the increasing temperature; and permitting detonation of the explosive component in response to the increasing volume.
    • 一种爆炸物安全系统(30,32)包括一个炸药部件(46),一个可移动的选择性地允许和防止炸药部件爆炸的阻塞部件(54),以及一个响应温度变化并被配置成可以移动的热致动器(56) 该成员响应温度变化。 另一种爆炸物安全系统包括一个带有材料的热致动器,该材料的体积响应于温度变化而变化,并且当材料体积变化时,致动器选择性地允许和防止爆炸部件的爆炸。 一种防止炸药部件不期望爆炸的方法包括以下步骤:提供具有可根据温度变化而变化的体积的材料; 将材料和炸药部件定位在井中,从而增加材料温度; 响应于温度升高而增加材料体积; 并且响应于增加的体积而允许炸药组分爆炸。