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    • 2. 发明申请
    • ALKALI METAL SILICIDES FOR HIGH TEMPERATURE WETTABILITY IMPROVEMENT IN CARBONATE RESERVOIRS
    • 碱性金属硅化物改善碳酸盐岩储层的高温润湿性
    • WO2015058170A3
    • 2015-10-29
    • PCT/US2014061273
    • 2014-10-17
    • SIGNA CHEMISTRY INC
    • KRUMRINE PAUL HLEFENFELD MICHAELROMNEY GREGORY ARTHURIMRAN MUHAMMADKNORR KELVIN DEANJONASSON RALPH GEORGE
    • E21B43/241
    • E21B43/25C09K8/58C09K8/592C09K8/594E21B43/16E21B43/24E21B43/255
    • A process for altering a wettability characteristic of a carbonate formation to stimulate oil production includes selecting an oil bearing carbonate formation, injecting a silicide dispersion into the carbonate formation, and reacting the injected silicide dispersion with water. The reaction alters the wettability characteristic of the carbonate formation toward water wettability. The silicide dispersion can include an alkali metal silicide, such as sodium silicide. The reaction generates hydrogen, silicate, and heat that pressurizes the carbonate formation with the generated hydrogen, heats the carbonate formation with the generated heat, and reduces the viscosity of the hydrocarbons in the carbonate formation with the generated silicate. The reaction re-mineralizes the surfaces in the carbonate formation and alters the wettability characteristics of the carbonate formation as a calcium-silicon phase is formed. The hydrocarbons are recovered from the carbonate formation with a production well.
    • 一种改变碳酸盐岩层的润湿性特征以刺激石油生产的方法包括选择含油碳酸盐岩层,将硅化物分散体注入碳酸盐岩层中,以及使注入的硅化物分散体与水反应。 该反应改变了碳酸盐岩层对水润湿性的润湿性特征。 硅化物分散体可以包括碱金属硅化物,例如硅化钠。 该反应产生氢气,硅酸盐和热量,其利用产生的氢气加压碳酸盐岩层,利用产生的热量加热碳酸盐岩岩层,并降低碳酸盐岩层中生成的硅酸盐的粘度。 该反应使碳酸盐岩地层中的表面重新矿化,并在钙 - 硅相形成时改变碳酸盐岩层的润湿性特征。 用生产井从碳酸盐岩地层中回收碳氢化合物。
    • 10. 发明申请
    • METHOD AND APPARATUS TO ENHANCE OIL RECOVERY IN WELLS
    • 方法和装置,以提高油井恢复
    • WO2010123886A2
    • 2010-10-28
    • PCT/US2010/031734
    • 2010-04-20
    • SMITH, David Randolph
    • SMITH, David Randolph
    • E21B43/241E21B43/16E21B43/24
    • E21B43/24E21B43/16E21B43/166
    • The present invention provides methods and apparatuses for the enhanced recovery of hydrocarbon fluids from subterranean reservoirs using cryogenic fluids. Using the Earth's geothermal energy to warm cryogenic flood fluids injected into subterranean reservoirs, the pressure within the subterranean reservoir is increased. Consequently, the reservoir conductivity is enhanced due to thermal cracking, and improved sweep efficiency of the reservoir by the flood fluids is provided. This rise in pressure due to the injection of the cryogenic fluid increases the reservoir conductivity enhancement and improves sweep efficiency of the flood fluids, which leads to the production of more fluids from to the subterranean reservoirs.
    • 本发明提供了使用低温流体从地下储层增强烃流体回收的方法和装置。 使用地球的地热能来加热注入地下水库的低温洪水,地下储层内的压力增加。 因此,由于热裂解提高了储层导电性,并且提供了由洪水流体提高储层的扫掠效率。 由于注入低温流体而导致的压力上升增加了储层导电率的提高并且提高了洪水流体的扫掠效率,这导致更多的流体从地下储层的产生。