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    Microbial enhanced oil recovery and compositions therefor
    2.
    发明授权
    Microbial enhanced oil recovery and compositions therefor 失效
    微生物强化油采收及其组成

    公开(公告)号：US4905761A

    公开(公告)日：1990-03-06

    申请号：US226352

    申请日：1988-07-29

    申请人： Rebecca S. Bryant

    发明人： Rebecca S. Bryant

    IPC分类号： C09K8/58 ,  C09K8/582 ,  C09K8/90

    CPC分类号： E21B43/16 ,  C09K8/58 ,  C09K8/582 ,  C09K8/905

    摘要： A method is provided for microbial enhanced oil recovery, wherein a combination of microorganisms is empirically formulated based on survivability under reservoir conditions and oil recovery efficiency, such that injection of the microbial combination may be made, in the presence of essentially only nutrient solution, directly into an injection well of an oil bearing reservoir having oil present at waterflood residual oil saturation concentration. The microbial combination is capable of displacing residual oil from reservoir rock, which oil may be recovered by waterflooding without causing plugging of the reservoir rock. Further, the microorganisms are capable of being transported through the pores of the reservoir rock between said injection well and associated production wells, during waterflooding, which results in a larger area of the reservoir being covered by the oil-mobilizing microorganisms.

    摘要翻译： 提供了用于微生物强化油采收的方法，其中微生物的组合基于储层条件下的生存性和油回收效率经验地配制，使得可以在基本上仅营养液存在下直接注入微生物组合 进入具有充水剩余油饱和浓度的油的含油储层的注入井。 微生物组合能够从储层岩石中排出残留油，该油可以通过注水回收而不会引起储层岩石的堵塞。 此外，在注水期间，微生物能够通过所述注入井和相关联的生产井之间的储层岩石的孔传输，这导致储层的较大面积被油移动微生物覆盖。

    Apparatus and method having an optical fiber disposed circumferentially around the pipe for measuring unsteady pressure within a pipe
    4.
    发明授权
    Apparatus and method having an optical fiber disposed circumferentially around the pipe for measuring unsteady pressure within a pipe 有权
    具有围绕管道周向设置用于测量管内的不稳定压力的光纤的装置和方法

    公开(公告)号：US06959604B2

    公开(公告)日：2005-11-01

    申请号：US10224821

    申请日：2002-08-21

    申请人： Rebecca S. Bryant ,  Daniel L. Gysling ,  Charles R. Winston ,  Allen R. Davis ,  John M. Faustino

    发明人： Rebecca S. Bryant ,  Daniel L. Gysling ,  Charles R. Winston ,  Allen R. Davis ,  John M. Faustino

    IPC分类号： G01L1/00 ,  E21B47/06 ,  G01L1/24 ,  G01L11/02 ,  G01L9/00

    CPC分类号： E21B47/06 ,  G01L1/246 ,  G01L11/025

    摘要： A fiber optic pressure sensor for measuring unsteady pressures within a pipe include at least one optical fiber disposed circumferentially around a portion of a circumference of the pipe, which provides an optical signal indicative of the length of the optical fiber. An optical instrument measures the change in length of the optical fiber to determine the unsteady pressure within the pipe. The pressure sensor may include a plurality of optical fiber sections disposed circumferentially around a portion of the circumference of the pipe that are optically connected together by optical fiber sections disposed axially along the pipe. The optical fiber sections may include fiber Bragg gratings having substantially the same or different reflection wavelengths to permit for example the sensors to be axially distributed along the fiber using wavelength division multiplexing and/or time division multiplexing.

    摘要翻译： 用于测量管道内的不稳定压力的光纤压力传感器包括至少一个围绕管道的圆周部分周向设置的光纤，其提供指示光纤长度的光学信号。 光学仪器测量光纤的长度变化，以确定管内的不稳定压力。 压力传感器可以包括围绕管的圆周的一部分周向设置的多个光纤段，其通过沿着管轴向设置的光纤段光学连接在一起。 光纤部分可以包括具有基本上相同或不同的反射波长的光纤布拉格光栅，以允许例如传感器使用波分复用和/或时分复用沿光纤轴向分布。

    Flow rate measurement using unsteady pressures
    6.
    发明授权
    Flow rate measurement using unsteady pressures 有权
    使用不稳定压力进行流量测量

    公开(公告)号：US06691584B2

    公开(公告)日：2004-02-17

    申请号：US10115727

    申请日：2002-04-03

    申请人： Daniel L. Gysling ,  Rebecca S. Bryant ,  Charles R. Winston

    发明人： Daniel L. Gysling ,  Rebecca S. Bryant ,  Charles R. Winston

    IPC分类号： G01F142

    CPC分类号： G01F1/34 ,  G01F1/704 ,  G01F1/7086 ,  G01F1/712 ,  G01F1/74

    摘要： According to one embodiment of the present invention, the apparatus comprises a first filter for measuring a pressure field at a first axial location along the pipe and providing a first pressure signal indicative of the vortical pressure field. The apparatus further comprises a second filter for measuring the vortical pressure field at a second axial location along the pipe and providing a second pressure signal indicative of the vortical pressure field. The apparatus further comprises a signal processor, responsive to the first and the second pressure signals, which provides a velocity signal indicative of a velocity of the vortical pressure field moving in the pipe.

    摘要翻译： 根据本发明的一个实施例，该装置包括第一过滤器，用于测量沿着管道的第一轴向位置处的压力场，并提供指示涡旋压力场的第一压力信号。 该装置还包括第二过滤器，用于在沿着管道的第二轴向位置处测量涡旋压力场，并提供指示涡旋压力场的第二压力信号。 该装置还包括响应于第一和第二压力信号的信号处理器，其提供指示在管道中移动的涡旋压力场的速度的速度信号。