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    • 1. 发明授权
    • Gas and oil production
    • 天然气和石油生产
    • US06805194B2
    • 2004-10-19
    • US10273449
    • 2002-10-18
    • Ian David Farquhar DavidsonAndrew George Yule
    • Ian David Farquhar DavidsonAndrew George Yule
    • E21B4324
    • E21B43/2401
    • A process for in situ gasification of mineral oil in a subterranean formation comprises running a tool having a controllable thermal device therein from a surface production facility down to the subterranean formation, bringing said tool into operational proximity with the mineral oil in said subterranean formation, and activating the tool to operate the thermal device within a predetermined temperature range to generate gases or oily vapours from said mineral oil, which permits either an enhanced oil recovery (EOR) method with reduced water contamination, or a gas production process (GPP) which is useful in reducing environmental risks normally associated with transport of crude oil.
    • 用于矿物油在地下地层中原位气化的方法包括将表面生产设备中具有可控制热装置的工具运行到地下地层,使所述工具与所述地层中的矿物油操作接近,以及 激活该工具以在预定温度范围内操作热装置以从所述矿物油产生气体或油性蒸气,其允许具有减少的水污染的增强的油回收(EOR)方法或气体生产过程(GPP) 有助于减少通常与原油运输有关的环境风险。
    • 8. 发明授权
    • Field upgrading of heavy oil and bitumen
    • 重油和沥青的现场升级
    • US06357526B1
    • 2002-03-19
    • US09527299
    • 2000-03-16
    • Tayseer Abdel-HalimMurugesan Subramanian
    • Tayseer Abdel-HalimMurugesan Subramanian
    • E21B4324
    • C10G21/003
    • A process and system which integrates on-site heavy oil or bitumen upgrading and energy recovery for steam production with steam-assisted gravity drainage (SAGD) production of the heavy oil or bitumen. The heavy oil or bitumen produced by SAGD is flashed to remove the gas oil fraction, and the residue is solvent deasphalted to obtain deasphalted oil, which is mixed with the gas oil fraction to form a pumpable synthetic crude. The synthetic crude has an improvement of 4-5 degrees of API and lower in sulfur, nitrogen and metal compounds. The synthetic crude is not only more valuable than the heavy oil or bitumen, but also has substantial economic advantage of reducing the diluent requirement since it has lower viscosity than the heavy oil or bitumen. The asphaltenes, following an optional pelletizing and/or slurrying step, are used as a fuel for combustion in boilers near the steam injection wells for injection into the heavy oil or bitumen reservoir. This eliminates the need for natural gas or other fuel to produce steam at reservoir location and thus improves the economics of the heavy oil or bitumen production substantially. Alternatively, the asphaltenes are used as a feedstock for gasification to produce injection steam, synthesis gas. The CO2 could be used as additive with injection steam to enhance the performance of SAGD and the hydrogen could be exported to nearby processing facility. The invention upgrades the heavy oil or bitumen to a synthetic crude of improved value that can be pipelined with reduced amount of diluent, while at the same time using the asphaltene fraction of the residue for combustion to fulfill the energy requirements for generating injection steam for SAGD.
    • 将重油或沥青的蒸汽辅助重力排水(SAGD)生产的蒸汽生产与现场重油或沥青改造和能量回收相结合的过程和系统。 将SAGD生产的重油或沥青闪蒸除去粗柴油馏分,残留物溶剂脱沥青,得到脱沥青油,将其与粗柴油馏分混合,形成可泵送的合成原油。 合成原油的API值为4-5度,硫,氮和金属化合物的含量较低。 合成原油不仅比重油或沥青更有价值,而且具有降低稀释剂需求的显着经济优势,因为它具有比重油或沥青更低的粘度。 在可选的造粒和/或浆化步骤之后,沥青质用作在蒸汽注入井附近的锅炉中燃烧的燃料,用于注入重油或沥青储存器。 这就消除了天然气或其他燃料在油藏位置产生蒸汽的需要,从而大大提高了重油或沥青的生产经济性。 或者,沥青质用作气化的原料以产生注入蒸汽,合成气。 CO2可以作为添加剂与注入蒸汽一起使用,以提高SAGD的性能,氢气可以出口到附近的加工厂。 本发明将重油或沥青升级成具有改进价值的合成原油,其可以用减少量的稀释剂进行流水线化,同时使用用于燃烧的残余物的沥青质馏分来满足用于产生SAGD的注入蒸汽的能量需求 。