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    • 2. 发明申请
    • DOWNHOLE OIL RECOVERY SYSTEM AND METHOD OF USE
    • 井下油回收系统及其使用方法
    • US20080149325A1
    • 2008-06-26
    • US11960698
    • 2007-12-19
    • Joe Crawford
    • Joe Crawford
    • E21B43/00
    • E21B43/129
    • An oil recovery system may comprise a generally hollow pump housing having an interior space, a downstroke powerline and an upstroke powerline, a power piston disposed in the interior space of the pump housing, a connecting rod having a first end attached to the power piston, a production piston attached to a second end of the connecting rod, a seal disposed between the production piston and the power piston, an oil inlet in fluid communication with a reservoir, and an oil inlet valve in fluid communication with the oil inlet. The power piston may be movable between a first position and a second position by power fluid delivered through the upstroke powerline or the downstroke powerline.
    • 油回收系统可以包括具有内部空间,下冲程电力线和上冲电力线的大体中空的泵壳体,设置在泵壳体的内部空间中的动力活塞,具有附接到动力活塞的第一端的连杆, 附接到连杆的第二端的生产活塞,设置在生产活塞和动力活塞之间的密封件,与储存器流体连通的进油口和与油入口流体连通的进油阀。 动力活塞可以通过上冲电力线或下行电力线输送的动力流体在第一位置和第二位置之间移动。
    • 6. 发明申请
    • Downhole recovery production tube system
    • 井下回收生产管系统
    • US20060213247A1
    • 2006-09-28
    • US11320511
    • 2005-12-28
    • Joe Crawford
    • Joe Crawford
    • F16L9/18B21C37/06F16L11/00
    • B21C37/08B21C37/151E21B17/203F16L9/19Y10T29/49924
    • An improved oil well production tube system characterized by a series of seam-welded, coilable tubes configured for placement in a subterranean fluid recovery well. Smaller coilable tubes, contained within a larger coilable tube, are configured for providing power communication between the surface and a downhole recovery means. The larger coilable tube is configured for providing communication of a recovered fluid from downhole to the surface. During fabrication, one or more smaller coilable tubes is introduced along the surface of a length of flat strip metal. The smaller coilable tubes are preferably tack-welded to the surface of the flat strip metal at determined intervals along their length. The length of flat strip metal is formed into tubular form and seam welded to form a coilable tube containing the smaller tubes therein.
    • 一种改进的油井生产管系统,其特征在于一系列用于放置在地下流体回收井中的接缝焊接的可卷绕管。 容纳在更大的可卷绕管内的较小的可卷绕管被构造成用于在表面和井下回收装置之间提供动力连通。 较大的可卷绕管构造成用于将回收的流体从井下连通到表面。 在制造过程中,沿一段长条状金属的表面引入一个或多个较小的可卷绕管。 较小的可卷绕管优选地沿着其长度以确定的间隔被定向焊接到扁平带状金属的表面。 扁平带状金属的长度形成管状,并进行缝焊,形成其中含有较小管的可卷绕管。
    • 9. 发明申请
    • Hydraulic downhole oil recovery system
    • 液压井下采油系统
    • US20070272416A1
    • 2007-11-29
    • US11293039
    • 2005-12-02
    • Joe Crawford
    • Joe Crawford
    • E21B43/00
    • E21B43/129F16H7/0836F16H2007/0806F16H2007/0859
    • An improved hydraulic downhole oil recovery system that incorporates an above ground unit and a submersible, reciprocating downhole pump unit. This system, by pumping oil to the surface both during the upstroke and down-stroke, is able to continuously pump oil to the surface as not previously possible. Oil production is doubled with virtually no increase in energy consumption during operation. Water-based fluid, rather than hydraulic fluid, is responsible for actuating the reciprocating downhole pump unit. The water-based fluid is transferred through the system using coil tubing. The system further relies upon coil exterior production tubing to provide exceptional advantage in deviated oil wells.
    • 一种改进的液压井下油回收系统,其包括地面单元和潜水往复式井下泵单元。 该系统通过在上行程和下行程期间将油泵送到表面,能够将油连续地泵送到表面,如先前所述。 石油生产增加了一倍,运行中几乎没有增加能源消耗。 水基流体而不是液压流体负责致动往复式井下泵单元。 水基流体通过系统使用线圈管传送。 该系统进一步依赖线圈外部生产管道,在偏差油井中提供卓越的优势。