Hydraulic fracture monitoring using active seismic sources with receivers in the treatment well
    1.
    发明授权
    Hydraulic fracture monitoring using active seismic sources with receivers in the treatment well 有权
    在处理井中采用活动地震源与接收器进行液压裂缝监测

    公开(公告)号:US09347313B2

    公开(公告)日:2016-05-24

    申请号:US14125544

    申请日:2012-06-11

    摘要: A method for obtaining information about a hydraulic fracturing operation in a fracture zone in a well, comprises a) providing at least one acoustic sensor in the well and at least one acoustic source, b) injecting fracturing fluid into the well so as to cause fractures in a fracture zone in the surrounding formation, c) using the acoustic source to send an acoustic signal and using the acoustic receiver to receive the signal, d) repeating step c) at least once, and e) processing the received signals using a microprocessor so as to obtain information about the fractures. The source may be at the earth's surface or in a second well. Step e) may comprise measuring first-arriving acoustic waves or measuring reflected or diffracted acoustic waves. The information gained in step e) may be used to control the injection of fracturing fluid or detect out-of-zone water injection.

    摘要翻译: 一种用于获得关于井的断裂带中的水力压裂操作的信息的方法,包括:a)在所述井中提供至少一个声传感器和至少一个声源,b)将压裂流体注入所述井中以引起裂缝 在周围地层的断裂带中,c)使用声源发送声学信号并使用声学接收器接收信号,d)重复步骤c)至少一次,以及e)使用微处理器处理所接收的信号 以获得有关骨折的信息。 源可以在地球表面或第二井中。 步骤e)可以包括测量第一到达的声波或测量反射或衍射的声波。 在步骤e)中获得的信息可用于控制压裂流体的注入或检测区域外的注水。

    Areal monitoring using distributed acoustic sensing
    2.
    发明授权
    Areal monitoring using distributed acoustic sensing 有权
    区域监测采用分布式声学检测

    公开(公告)号:US09003888B2

    公开(公告)日:2015-04-14

    申请号:US13148437

    申请日:2009-10-15

    IPC分类号: G01V8/16

    CPC分类号: G01V8/16 E21B47/102

    摘要: A method for obtaining seismic information about a subsurface formation using at least one fiber optic cable having its proximal end coupled to a light source and a photodetector comprises: transmitting into the cable at least one light pulse; receiving at the photodetector a first and second light signals indicative of the physical status of at least one first cable section and at least one second cable section, respectively, wherein the first and second sections are selected so as to provide first and second information items, respectively; optionally, further processing at least one of the first and second information items so as to produce derivative information; and outputting at least one of the first, second, and derivative information items to a display; wherein the second item differs from the first item in at least one aspect selected from the group consisting of: resolution, area, and location.

    摘要翻译: 一种用于使用至少一根光纤电缆获得关于地下地层的地震信息的方法,所述至少一根光缆具有耦合到光源的近端和光电检测器,包括:将至少一个光脉冲传输到所述电缆; 在光电检测器处接收分别指示至少一个第一电缆部分和至少一个第二电缆部分的物理状态的第一和第二光信号,其中选择第一和第二部分以提供第一和第二信息项, 分别; 可选地,进一步处理第一和第二信息项中的至少一个,以产生导数信息; 并将第一,第二和导出信息项中的至少一个输出到显示器; 其中所述第二项目与至少一个方面中的所述第一项目不同,所述方面从由以下组成的组中选择:分辨率,面积和位置。

    HYDRAULIC FRACTURE MONITORING USING ACTIVE SEISMIC SOURCES WITH RECEIVERS IN THE TREATMENT WELL
    3.
    发明申请
    HYDRAULIC FRACTURE MONITORING USING ACTIVE SEISMIC SOURCES WITH RECEIVERS IN THE TREATMENT WELL 有权
    使用活动地震源与治疗井中接收者进行液压破碎监测

    公开(公告)号:US20140290936A1

    公开(公告)日:2014-10-02

    申请号:US14125544

    申请日:2012-06-11

    IPC分类号: E21B47/14 E21B43/26

    摘要: A method for obtaining information about a hydraulic fracturing operation in a fracture zone in a well, comprises a) providing at least one acoustic sensor in the well and at least one acoustic source, b) injecting fracturing fluid into the well so as to cause fractures in a fracture zone in the surrounding formation, c) using the acoustic source to send an acoustic signal and using the acoustic receiver to receive the signal, d) repeating step c) at least once, and e) processing the received signals using a microprocessor so as to obtain information about the fractures. The source may be at the earth's surface or in a second well. Step e) may comprise measuring first-arriving acoustic waves or measuring reflected or diffracted acoustic waves. The information gained in step e) may be used to control the injection of fracturing fluid or detect out-of-zone water injection.

    摘要翻译: 一种用于获得关于井的断裂带中的水力压裂操作的信息的方法,包括:a)在所述井中提供至少一个声传感器和至少一个声源,b)将压裂流体注入所述井中以引起裂缝 在周围地层的断裂带中,c)使用声源发送声学信号并使用声学接收器接收信号,d)重复步骤c)至少一次,以及e)使用微处理器处理所接收的信号 以获得有关骨折的信息。 源可以在地球表面或第二井中。 步骤e)可以包括测量第一到达的声波或测量反射或衍射的声波。 在步骤e)中获得的信息可用于控制压裂流体的注入或检测区域外的注水。

    AREAL MONITORING USING DISTRIBUTED ACOUSTIC SENSING
    4.
    发明申请
    AREAL MONITORING USING DISTRIBUTED ACOUSTIC SENSING 有权
    使用分布式声学感测进行AREAL监测

    公开(公告)号:US20120024051A1

    公开(公告)日:2012-02-02

    申请号:US13148437

    申请日:2009-10-15

    IPC分类号: E21B49/00

    CPC分类号: G01V8/16 E21B47/102

    摘要: A method for obtaining seismic information about a subsurface formation using at least one fiber optic cable having its proximal end coupled to a light source and a photodetector comprises: transmitting into the cable at least one light pulse; receiving at the photodetector a first and second light signals indicative of the physical status of at least one first cable section and at least one second cable section, respectively, wherein the first and second sections are selected so as to provide first and second information items, respectively; optionally, further processing at least one of the first and second information items so as to produce derivative information; and outputting at least one of the first, second, and derivative information items to a display; wherein the second item differs from the first item in at least one aspect selected from the group consisting of: resolution, area, and location.

    摘要翻译: 一种用于使用至少一根光纤电缆获得关于地下地层的地震信息的方法,所述至少一根光缆具有耦合到光源的近端和光电检测器,包括:将至少一个光脉冲传输到所述电缆; 在光电检测器处接收分别指示至少一个第一电缆部分和至少一个第二电缆部分的物理状态的第一和第二光信号,其中选择第一和第二部分以提供第一和第二信息项, 分别; 可选地,进一步处理第一和第二信息项中的至少一个,以产生导数信息; 并将第一,第二和导出信息项中的至少一个输出到显示器; 其中所述第二项目与至少一个方面中的所述第一项目不同,所述方面从由以下组成的组中选择:分辨率,面积和位置。

    SIGNAL STACKING IN FIBER OPTIC DISTRIBUTED ACOUSTIC SENSING
    5.
    发明申请
    SIGNAL STACKING IN FIBER OPTIC DISTRIBUTED ACOUSTIC SENSING 有权
    光纤分布式声学感应信号堆叠

    公开(公告)号:US20130100768A1

    公开(公告)日:2013-04-25

    申请号:US13805679

    申请日:2011-06-22

    IPC分类号: G01V1/48

    CPC分类号: G01V1/48 G01V1/16

    摘要: A method for obtaining information about a subsurface formation from acoustic signals that contain information about the subsurface formation, comprises a) transmitting an optical signal into a fiber optic cable (14) that includes a sensing apparatus (20) comprising a plurality of substantially parallel fiber lengths (24), b) collecting from the sensing apparatus a plurality of received optical signals, each received signal comprising a portion of the transmitted signal that has been reflected from a different segment of a cable length, wherein the different segments are each in different cable lengths and correspond to a single selected location along the sensing cable, and c) processing the collected signals so as to obtain information about an acoustic signal received at the different segments. The cable may be ribbon cable and the lateral distance between the different segments may be less than 10 meters.

    摘要翻译: 一种用于从包含关于地下地层信息的声信号获得关于地下构造的信息的方法,包括:a)将光信号传输到光纤电缆(14)中,所述光纤电缆包括感测装置(20),所述感测装置包括多个基本平行的光纤 长度(24),b)从感测装置收集多个接收到的光信号,每个接收信号包括已经从电缆长度的不同段反射的发射信号的一部分,其中不同的段各自不同 电缆长度并且对应于沿着感测电缆的单个选定位置,以及c)处理所收集的信号,以获得关于在不同段处接收的声信号的信息。 电缆可以是带状电缆,不同部分之间的横向距离可能小于10米。

    Signal stacking in fiber optic distributed acoustic sensing
    6.
    发明授权
    Signal stacking in fiber optic distributed acoustic sensing 有权
    信号堆叠在光纤分布式声学传感中

    公开(公告)号:US09140815B2

    公开(公告)日:2015-09-22

    申请号:US13805679

    申请日:2011-06-22

    IPC分类号: G01V1/48 G01V1/16

    CPC分类号: G01V1/48 G01V1/16

    摘要: A method for obtaining information about a subsurface formation from acoustic signals that contain information about the subsurface formation, comprises a) transmitting an optical signal into a fiber optic cable (14) that includes a sensing apparatus (20) comprising a plurality of substantially parallel fiber lengths (24), b) collecting from the sensing apparatus a plurality of received optical signals, each received signal comprising a portion of the transmitted signal that has been reflected from a different segment of a cable length, wherein the different segments are each in different cable lengths and correspond to a single selected location along the sensing cable, and c) processing the collected signals so as to obtain information about an acoustic signal received at the different segments. The cable may be ribbon cable and the lateral distance between the different segments may be less than 10 meters.

    摘要翻译: 一种用于从包含关于地下地层信息的声信号获得关于地下构造的信息的方法,包括:a)将光信号传输到光纤电缆(14)中,所述光纤电缆包括感测装置(20),所述感测装置包括多个基本平行的光纤 长度(24),b)从感测装置收集多个接收到的光信号,每个接收信号包括已经从电缆长度的不同段反射的发射信号的一部分,其中不同的段各自不同 电缆长度并且对应于沿着感测电缆的单个选定位置,以及c)处理所收集的信号,以获得关于在不同段处接收的声信号的信息。 电缆可以是带状电缆,不同部分之间的横向距离可能小于10米。

    METHOD FOR INCREASING BROADSIDE SENSITIVITY IN SEISMIC SENSING SYSTEM
    7.
    发明申请
    METHOD FOR INCREASING BROADSIDE SENSITIVITY IN SEISMIC SENSING SYSTEM 审中-公开
    地震感测系统中增加广义灵敏度的方法

    公开(公告)号:US20150071034A1

    公开(公告)日:2015-03-12

    申请号:US14235643

    申请日:2012-07-26

    IPC分类号: G01V1/28 G01V1/42

    摘要: A method for collecting information about a subsurface region, comprises a) providing a set of data comprising a plurality of scattered signals, where each scattered signal is a portion of an acoustic seismic signal that has been scattered by and at least one scatterer and received at a receiver, b) using spatial deconvolution to process the scattered signals so as generate a coherent arrival, and c) using the coherent arrival to output human readable information about the subsurface region. The receiver may be a geophone or a fiber optic distributed acoustic sensor and may be in a borehole or at the surface. The acoustic seismic signal may originate at the surface or below the surface and may be an active or passive source.

    摘要翻译: 一种用于收集关于地下区域的信息的方法,包括:a)提供包括多个散射信号的一组数据,其中每个散射信号是声散射信号的一部分,该地震信号已被散射并且至少一个散射体并且被接收在 接收机,b)使用空间去卷积来处理散射信号以产生一致的到达,以及c)使用相干到达来输出关于地下区域的人类可读信息。 接收器可以是地震检波器或光纤分布式声学传感器,并且可以在钻孔中或在表面处。 声学地震信号可能起源于表面或表面以下,并且可以是主动或被动源。