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    • 4. 发明授权
    • Drum-type dual channel water-jet assisted cutting head
    • 鼓式双通道喷水辅助切割头
    • US06755480B2
    • 2004-06-29
    • US10090104
    • 2002-02-27
    • Donald B. SultJeffrey J. Schwoebel
    • Donald B. SultJeffrey J. Schwoebel
    • E21C2560
    • E21C25/10E21C25/60E21C35/23
    • A drum-type miner having a plurality of water jet nozzles which cut independently of the mechanical bits is disclosed. The drum-type miner may configured in either a hard-head or a ripper-chain design. The unique combination of mechanical and hydraulic cutting results in higher rates of penetration and improved productivity. The nozzles in one embodiment are supplied on a transversely mounted strut and are supplied with high-pressure fluid through two independent water channels in the strut. The nozzles may be configured in different directions, such that the high-pressure fluid may be directed in several directions simultaneously, or configured to direct the high-pressure fluid in one direction only. Moreover, because the mining face is pre-scored by the water jets, the amount of wear on both the mechanical bits and the motors may be significantly reduced.
    • 公开了具有独立于机械钻头切割的多个喷水喷嘴的滚筒式矿机。 鼓式矿工可以用硬头或裂口链设计。 机械和液压切割的独特组合导致更高的渗透率和提高的生产率。 一个实施例中的喷嘴供应在横向安装的支柱上,并且通过支柱中的两个独立的水通道供应高压流体。 这些喷嘴可以被配置在不同的方向上,使得高压流体可以在多个方向上同时被引导,或者被配置成仅在一个方向上引导高压流体。 此外,由于采矿面被喷水机预先划定,所以机械钻头和马达上的磨损量可能会大大降低。
    • 8. 发明申请
    • METHOD OF AND SYSTEM FOR HYDROCARBON RECOVERY
    • 油气回收方法与系统
    • US20100170672A1
    • 2010-07-08
    • US12501911
    • 2009-07-13
    • Jeffrey J. SchwoebelDaniel BrunnerBruce Sakashita
    • Jeffrey J. SchwoebelDaniel BrunnerBruce Sakashita
    • E21B43/30
    • E21B43/305
    • A method of recovering hydrocarbons from a subterranean reservoir. The method includes drilling a substantially-vertical primary production well, drilling a plurality of offset production wells generally around the substantially-vertical primary production well in a radial orientation, and drilling a plurality of offset injection wells generally around the substantially-vertical primary production well in a radial orientation. The method further includes injecting, via the plurality of offset injection wells, a liquid to mobilize the hydrocarbons from the subterranean reservoir and inducing the mobilized hydrocarbons to migrate towards the plurality of offset production wells for secondary recovery and injecting, via the plurality of offset injection wells, a gas to mobilize the hydrocarbons from the subterranean reservoir and inducing the mobilized hydrocarbons to migrate towards the plurality of offset production wells for tertiary recovery.
    • 从地下储层回收烃的方法。 该方法包括钻取基本上垂直的初级生产井,在径向方向上大致围绕基本垂直的初级生产井围绕多个偏移生产井钻井,以及钻井多个基本垂直的初级生产井周围的偏移注入井 在径向方向。 该方法还包括经由多个偏移注入井注入液体以从地层储集器中移动烃,并且通过多个偏移注入引起移动的烃朝向多个补偿生产井迁移以进行二次回收和注入 井,一种气体,用于从地下储层中移动烃,并诱导动员的烃向多个偏移生产井迁移以进行三次回收。
    • 9. 发明授权
    • Gob methane drainage system
    • Gob甲烷排放系统
    • US4978172A
    • 1990-12-18
    • US426848
    • 1989-10-26
    • Jeffrey J. SchwoebelTerry L. Logan
    • Jeffrey J. SchwoebelTerry L. Logan
    • E21B43/30E21F7/00
    • E21B43/305E21F7/00
    • A system for recovering methane gas from a coal seam and rock strata and other coal seams above a coal seam being mined or as has been previously mined. The system involves directionally drilling one or more degas holes from a surface location that curve to extend above and essentially parallel, near parallel or slanted to a coal seam to be mined or as has been previously mined. The degas hole is spaced an appropriate vertical distance above the coal seam, usually twenty (20) to two hundred (200) feet, depending on the mining technique being employed and rock strata characteristics. The degas hole is to draw methane gas under vacuum or pressure differential from the gob that is created when the overburden is collapsed. Multiple degas holes can be formed from the same surface location to run parallel to, across and even at an angle to a coal seam.
    • 一个从煤层和岩层以及煤层以上开采的煤层中回收甲烷气体的系统。 该系统包括从曲线的一个或多个脱气孔定向钻孔一个或多个脱气孔,该表面位置的曲线在其上方并且基本平行,靠近平行或倾斜到待开采的煤层或者如先前已经开采的。 取决于采用的采矿技术和岩层特征,脱气孔在煤层之上隔开适当的垂直距离,通常为二十(20)至二百(200)英尺。 脱气孔是在上覆层破裂时产生的料滴在真空或压力差下抽取甲烷气体。 多个脱气孔可以从相同的表面位置形成,平行于煤层,甚至与煤层成一定角度。