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    • 7. 发明授权
    • Producer well lugging for in situ combustion processes
    • 生产井适用于原位燃烧过程
    • US07793720B2
    • 2010-09-14
    • US12328344
    • 2008-12-04
    • Wayne Reid Dreher, Jr.Wendell Peter Menard
    • Wayne Reid Dreher, Jr.Wendell Peter Menard
    • E21B43/243
    • E21B43/243
    • Methods and apparatus relate to controlling location of inflow into a production well during in situ combustion. The production well includes intervals closable to the inflow at identified times. Once a combustion front from the in situ combustion passes one of the intervals, a blockage conveyed from surface into the production well forms a barrier to the inflow at the interval that has been passed by the combustion front. An example of the blockage includes a cement plug delivered through coiled tubing into the production well, which may include production tubing that defines the intervals based on at least two consecutive alternating lengths of solid wall sections and slotted or perforated sections of the production tubing.
    • 方法和装置涉及在现场燃烧期间控制流入生产井的位置。 生产井包括在确定的时间可以流入的间隔。 一旦来自原位燃烧的燃烧前沿通过其中一个间隔,则从表面传送到生产井中的堵塞在以燃烧前沿通过的间隔处形成对流入物的阻挡。 堵塞的示例包括通过连续油管输送到生产井中的水泥塞,其可以包括限定基于至少两个连续交替长度的实心壁段和生产管的开槽或穿孔部分的间隔的生产管。
    • 9. 发明授权
    • Enhanced bitumen recovery using high permeability pathways
    • 使用高渗透性途径增强沥青回收率
    • US08967282B2
    • 2015-03-03
    • US13046149
    • 2011-03-11
    • Wayne Reid Dreher, Jr.Tawfik NasrWendell MenardThomas J. Wheeler
    • Wayne Reid Dreher, Jr.Tawfik NasrWendell MenardThomas J. Wheeler
    • E21B43/27E21B43/30
    • E21B43/305
    • Heavy oil recovery from oil sand reservoirs is enhanced through the creation of subsurface high permeability pathways distributed throughout the oil sand reservoirs. The high permeability pathways may be boreholes that extend through the oil sand reservoir. A portion of the high permeability pathway may be packed with high permeability particulate to provide structural support and allow for high permeability throughout the boreholes. After establishing the high permeability pathways throughout the oil sand reservoir, solvent may be introduced into the oil sand reservoir. The solvent has the beneficial effect of lowering the viscosity of the heavy oil, which aids in the extraction of the heavy oil. Thermal recovery processes and other enhancements may be combined with these methods to aid in reducing the viscosity of the heavy oil. Advantages of these methods include, accelerated hydrocarbon recovery, higher production efficiencies, lower costs, and lower extraction times.
    • 通过分布在整个油砂储层的地下高渗透路径的形成,提高了油砂储层的重油回收率。 高渗透性通道可以是延伸穿过油砂储层的钻孔。 高渗透性通道的一部分可以用高渗透性颗粒填充以提供结构支撑并允许贯穿整个钻孔的高渗透性。 在整个油砂储层建立高渗透通道后,可将溶剂引入油砂储层。 溶剂具有降低重油粘度的有益效果,有助于重油的萃取。 热回收方法和其他增强可以与这些方法组合以帮助降低重油的粘度。 这些方法的优点包括加速烃回收,更高的生产效率,更低的成本和更低的萃取时间。