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1. 发明申请

US20060144591A1 Method and apparatus for repair of wells utilizing meltable repair materials and exothermic reactants as heating agents 审中-公开
标题翻译：利用可熔修复材料和放热反应物作为加热剂修复井的方法和装置
公开(公告)号：US20060144591A1
公开(公告)日：2006-07-06
申请号：US11027205
申请日：2004-12-30
申请人： Manuel Gonzalez , Robert Carpenter , Jack Fralick , James Bloys
发明人： Manuel Gonzalez , Robert Carpenter , Jack Fralick , James Bloys
IPC分类号： E21B33/13 , E21B36/00
CPC分类号： E21B33/13 , E21B29/10
摘要： A method and apparatus are described for creating a fluid seal in a subterranean well structure having a fluid seal defect. The method comprises introducing a meltable repair material proximate a structure in a subterranean well which has a fluid seal defect or enhanced seal capacity is required or it is desired to temporarily or permanently hydraulically isolate a portion the well or strengthen the structural integrity of well tubulars or tubular hangers. Exothermic reactant materials are located proximate the meltable repair material. The exothermic reactant material is ignited or an exothermic reaction otherwise initiated which supplies heat to and melts the meltable repair material into a molten mass. The molten mass flows and solidifies across the structure and the fluid seal defect to effect a fluid seal in the subterranean well structure or the structural integrity is enhanced. Examples of preferred exothermic reactant materials include thermite, thermate, fusible chemical reactants such as ammonium chloride and sodium nitrate, and oxidizers and accompanying hydrocarbon based fuels. Examples of preferred meltable repair materials include solder or brazing materials and eutectic metals which expand upon cooling and solidifying from a molten state.
摘要翻译：描述了一种用于在具有流体密封缺陷的地下井结构中产生流体密封的方法和装置。该方法包括在地下井中的结构附近引入可熔化的修复材料，其具有流体密封缺陷或需要增强的密封能力，或者期望临时或永久性地水力分离井的一部分或加强井管的结构完整性，或者管状衣架。放热反应物料位于可熔修补材料附近。放热的反应物料被点燃或另外启动的放热反应，其向可熔化的修补材料供应热量并将其熔化成熔融物质。熔融质量流过并固化在结构和流体密封缺陷上，以实现地下井结构中的流体密封，或增强了结构完整性。优选的放热反应物材料的实例包括：铝，热，易熔化学反应物如氯化铵和硝酸钠，以及氧化剂和伴随的烃类燃料。优选的可熔融修复材料的实例包括焊料或钎焊材料和在熔融状态下冷却和固化时膨胀的共晶金属。

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