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    • 4. 发明申请
    • PROCESS FOR DOWNHOLE HEATING
    • 井下加热的过程
    • WO2006039362A2
    • 2006-04-13
    • PCT/US2005/034910
    • 2005-09-29
    • BAKER HUGHES INCORPORATED
    • BLAND, Ronald, G.YOUNG, David, B.PLESS, Marvin, L.TRENERY, John, B.
    • E21B43/24E21B36/00
    • E21B36/008E21B43/24
    • Neutral electrolytes, relatively neutral electrolytes, metal oxides, metal hydroxides and/or organic exothermic hydration chemicals may be hydrated with water at a controlled location in a subterranean formation to generate sufficient exothermic heat to at least soften and possibly melt and flow bitumen at or near the location. This controlled and localized heating would be useful in drilling through relatively thick bitumen or "tar" beds. In one non­limiting embodiment the exothermic hydration reaction does not generate appreciable amounts of gas. Alternatively, the exothermic reaction may be used to liberate hydrocarbons from gas hydrates in an embodiment where the evolution of gas is acceptable.
    • 中性电解质,相对中性的电解质,金属氧化物,金属氢氧化物和/或有机放热水化化学品可以在地下地层的受控位置用水进行水合以产生足够的放热以至少软化并且 可能在位置或其附近熔化和流动沥青。 这种受控和局部加热对于钻穿较厚的沥青或“焦油”是有用的。 床。 在一个非限制性实施方案中,放热水合反应不产生可观量的气体。 或者,在气体逸出可接受的实施方案中,放热反应可用于从气体水合物中释放烃。