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    • 5. 发明申请
    • DOWNHOLE IN-SITU HEAT GENERATION TO REMOVE FILTERCAKE
    • 井下地热生成去除过滤器
    • WO2017099896A1
    • 2017-06-15
    • PCT/US2016/058627
    • 2016-10-25
    • SAUDI ARABIAN OIL COMPANYARAMCO SERVICES COMPANY
    • GAMAGE, PubuduHILFIGER, Matthew
    • C09K8/03C09K8/50C09K8/516C09K8/518C09K8/536
    • E21B21/00C09K8/03C09K8/035C09K8/50C09K8/516C09K8/52C09K8/536C09K2208/26E21B37/06
    • In a method to degrade filtercake in a hydrocarbon reservoir using downhole in-situ heat generation, a filtercake breaker, configured to degrade filtercake at a temperature, is mixed with a drilling fluid. The drilling fluid mixed with the filtercake breaker is flowed through a hydrocarbon reservoir in which a wellbore is being drilled. A filtercake forms in a portion of the hydrocarbon reservoir responsive to flowing the drilling fluid. A temperature of the portion of the hydrocarbon reservoir is less than the temperature at which the filtercake breaker is configured to degrade filtercake. Multiple filtercake chemicals are flowed to the portion of the hydrocarbon reservoir. The multiple filtercake chemicals, when mixed, are configured to react in an exothermic reaction to release heat to increase the temperature of the portion of the hydrocarbon reservoir to at least the temperature at which the filtercake breaker is configured to degrade filtercake.
    • 在使用井下现场发热来降解烃储层中的滤饼的方法中,配置成在一定温度下使滤饼降解的滤饼破碎剂与钻井液混合。 与滤饼破碎剂混合的钻井液流过正钻有井筒的烃储层。 响应钻井流体的流动,在烃储层的一部分中形成滤饼。 碳氢化合物储存器部分的温度低于滤饼破碎机构造成降解滤饼的温度。 多种滤饼化学品流入烃储层的一部分。 多种滤饼化学物质在混合时被配置成在放热反应中反应以释放热量,以将烃储存器的部分的温度提高至至少滤饼破碎剂被配置为降解滤饼的温度。