Methods for acquiring seismic data while tripping
    92.
    发明申请
    Methods for acquiring seismic data while tripping 失效
    跳闸时采集地震数据的方法

    公开(公告)号:US20030185099A1

    公开(公告)日:2003-10-02

    申请号:US10108402

    申请日:2002-03-28

    Inventor: James C. Jackson

    CPC classification number: G01V1/52 G01V1/42

    Abstract: A method is described for acquiring seismic data while removing, or tripping, a drill string from a wellbore. The method comprises, conveying an autonomous seismic receiver down a fluid passage in the drill string to a predetermined location proximate a lower end of the drill string; generating signals by a seismic source near a surface location; detecting the seismic signals with at least one sensor in the seismic receiver at least one predetermined location of interest in the wellbore as the drill string is removed from the wellbore; and storing the detected seismic signals in the seismic receiver.

    Abstract translation: 描述了一种用于在从钻井中移除或跳脱钻柱时获取地震数据的方法。 该方法包括:将自主地震接收器沿钻柱中的流体通道向下输送到靠近钻柱的下端的预定位置; 在表面位置附近由地震源生成信号; 当钻柱从井筒移除时,在地震接收器中的至少一个传感器检测地震信号在钻井中的至少一个预定位置; 并将检测到的地震信号存储在地震接收机中。

    Measurement-while-drilling acoustic system employing multiple, segmented transmitters and receivers
    93.
    发明授权
    Measurement-while-drilling acoustic system employing multiple, segmented transmitters and receivers 有权
    采用多个分段发射机和接收机的钻井同步测量系统

    公开(公告)号:US06614360B1

    公开(公告)日:2003-09-02

    申请号:US09590906

    申请日:2000-06-09

    CPC classification number: E21B44/00 E21B44/005 G01V1/52

    Abstract: An acoustic MWD system comprises at least one transmitter array and at least one receiver array spaced axially along an essentially tubular downhole subassembly. Each transmitter and receiver array includes a plurality of elements circumferentially disposed on the outside of the assembly. The downhole subassembly also comprises a processor, data storage, telemetry elements, power supplies and control circuits as well as other types of sensors. In one embodiment of the invention, the transmitters are operated as a quadrupole in orthogonal orientations and signals from two receiver elements processed to attenuate common modes (including body waves through the tool, monopole waves and Stoneley waves). In another embodiment, the transmitters are used as crossed dipoles and signals received by cross-dipole receivers may be used to determine shear wave birefringence in the formation. In yet another embodiment, the transmitters are used as crossed dipoles and a single dipole receiver produces information relating to the birefringence: rotation of the drillstring makes it possible to operate the transmitters in two orthogonal orientations.

    Abstract translation: 声学MWD系统包括至少一个发射器阵列和沿着基本上管状的井下子组件沿轴向间隔开的至少一个接收器阵列。 每个发射器和接收器阵列包括周向设置在组件外部的多个元件。 井下子组件还包括处理器,数据存储器,遥测元件,电源和控制电路以及其它类型的传感器。 在本发明的一个实施例中,发射机作为正交取向的四极杆和来自被处理为衰减共模(包括通过工具的体波,单极波和斯通利波)的两个接收器元件的信号)操作。 在另一个实施例中,发射机用作交叉偶极子,并且可以使用由交叉偶极子接收器接收的信号来确定地层中的剪切波双折射。 在另一个实施例中,发射器用作交叉偶极子,并且单个偶极子接收器产生与双折射相关的信息:钻柱的旋转使得可以以两个正交取向操作发射器。

    Reservoir evaluation apparatus and method
    95.
    发明申请
    Reservoir evaluation apparatus and method 审中-公开
    水库评价装置及方法

    公开(公告)号:US20030081501A1

    公开(公告)日:2003-05-01

    申请号:US10237592

    申请日:2002-09-09

    CPC classification number: G01V1/52 G01V2210/161

    Abstract: The present invention provides a vertical seismic imaging apparatus and method for evaluation a reservoir. The invention includes a plurality of sensors disposed in a well borehole either permanently cemented in place or retrievably disposed using a series of clamps to attach the sensors to the borehole wall. Each sensor uses one or more forced balanced controlled accelerometers to detect acoustic energy in the formation.

    Abstract translation: 本发明提供了一种用于评估储层的垂直地震成像装置和方法。 本发明包括设置在井眼中的多个传感器,其永久地胶合在适当位置或使用一系列夹具可回收地设置,以将传感器附接到钻孔壁。 每个传感器使用一个或多个强制平衡受控加速度计来检测地层中的声能。

    Hydrophone for use in a downhole tool
    96.
    发明授权
    Hydrophone for use in a downhole tool 有权
    用于井下工具的水听器

    公开(公告)号:US06438070B1

    公开(公告)日:2002-08-20

    申请号:US09411078

    申请日:1999-10-04

    CPC classification number: G01V1/186 B06B1/0611 G01V1/52

    Abstract: A pressure pulse sensor and associated methods provide enhanced functionality and convenience in detecting pressure pulses. In a described embodiment, a hydrophone includes a stack of disc-shaped lead titanate piezoelectric crystals enclosed within an epoxy membrane and a mounting portion which is aligned with a center of mass of the crystal stack.

    Abstract translation: 压力脉冲传感器和相关方法在检测压力脉冲方面提供了增强的功能和便利性。 在所描述的实施例中,水听器包括封装在环氧树脂膜内的圆盘形钛酸铅压电晶体和与晶体叠层的质心对准的安装部分。

    Device and method for seismic drill hole measuring
    97.
    发明申请
    Device and method for seismic drill hole measuring 失效
    地震钻孔测量装置及方法

    公开(公告)号:US20020060952A1

    公开(公告)日:2002-05-23

    申请号:US09795478

    申请日:2001-03-01

    Applicant: GEOSERVICES

    CPC classification number: G01V1/52 G01V2200/12

    Abstract: Seismic waves are recorded twice by a reference sensor (8) above ground and by a sensor (18) located in the drill hole (1). Measurements are synchronized by a clock system, the clock associated with sensor (18) being designed specifically for providing such synchronization in spite of operating conditions prevailing at the bottom of a drill hole (vibrations, shocks, temperature).

    Abstract translation: 地震波被地面上的参考传感器(8)和位于钻孔(1)中的传感器(18)记录两次。 测量由时钟系统同步,与传感器(18)相关联的时钟被设计为专门用于提供这样的同步,尽管在钻孔的底部(振动,冲击,温度)存在操作条件。

    Acoustic receiver
    98.
    发明申请
    Acoustic receiver 有权
    声学接收器

    公开(公告)号:US20020011378A1

    公开(公告)日:2002-01-31

    申请号:US09885149

    申请日:2001-06-20

    CPC classification number: G01V1/52 G01V1/16

    Abstract: An acoustic receiver for sensing acoustic waves and generating orthogonal triaxial acoustic response data representative of said acoustic waves is disclosed. The receiver has at least four acoustic sensors oriented in at least four different directions. Each of the acoustic sensors is adapted to produce an electrical signal in response to an acoustic wave impinging thereon. The inventive acoustic receiver also includes means for combining the electrical signals to yield orthogonal triaxial acoustic response data. In one embodiment the means for combining the electrical signals comprises wiring the acoustic sensors in two series pairs to produce a combined output along two of the three orthogonal axes and orienting at least one acoustic sensor substantially parallel to the longitudinal axis of the acoustic receiver.

    Abstract translation: 公开了一种用于感测声波并产生代表所述声波的正交三轴声响应数据的声接收器。 接收器具有至少四个在至少四个不同方向上定向的声学传感器。 每个声传感器适于响应于其上的声波而产生电信号。 本发明的声学接收机还包括用于组合电信号以产生正交三轴声响应数据的装置。 在一个实施例中,用于组合电信号的装置包括以两个串联对布置声学传感器,以产生沿着三个正交轴中的两个的组合输出并且使至少一个声学传感器基本上平行于声学接收器的纵向轴线定向。

    Method of obtaining improved geophysical information about earth formations
    99.
    发明授权
    Method of obtaining improved geophysical information about earth formations 有权
    获取改进的地球物理信息的方法

    公开(公告)号:US06253848B1

    公开(公告)日:2001-07-03

    申请号:US09607309

    申请日:2000-06-29

    Abstract: The present invention provides a method for forming wellbores. In one method, one or more wellbores are drilled along preplanned paths based in part upon seismic surveys performed from the surface. An acoustic transmitter conveyed in such wellbores transmits acoustic signals at a one or more frequencies within a range of frequencies at a plurality of spaced locations. A plurality of substantially serially spaced receivers in the wellbores and/or at s receive signals reflected by the subsurface formations. The sensors may be permanently installed in the boreholes and could be fiber optic devices. The receiver signals are processed by conventional geophysical processing methods to obtain information about the subsurface formations. This information is utilized to update any prior seismographs to obtain higher resolution seismographs. The improved seismographs are then used to determine the profiles of the production wellbores to be drilled. Borehole seismic imaging may then be used to further improve the seismographs and to plan future wellbores. Cross-well tomography may be utilized to further update the seismographs to manage the reservoirs. The permanently installed sensors may also be used to monitor the progress of fracturing in nearby wells and thereby provide the necessary information for controlling fracturing operations.

    Abstract translation: 本发明提供一种形成井筒的方法。 在一种方法中,部分地基于从表面进行的地震测量,沿着预先设计的路径钻一个或多个井筒。 在这种井筒中传送的声发射器以多个间隔位置的频率范围内的一个或多个频率发射声信号。 井眼中的多个基本上串联的接收器和/或在地下地层反射的接收信号。 传感器可以永久地安装在钻孔中,并且可以是光纤装置。 接收机信号通过常规的地球物理处理方法进行处理,以获得有关地下地层的信息。 该信息用于更新任何先前的地震仪以获得更高分辨率的地震仪。 然后使用改进的地震仪来确定要钻探的生产井筒的轮廓。 然后可以使用井眼地震成像来进一步改进地震仪和计划未来的井筒。 可以利用横井断层扫描来进一步更新地震仪以管理储层。 永久安装的传感器也可用于监测附近井中压裂的进展,从而提供控制压裂作业的必要信息。

    Clamped receiver array using tubing conveyed packer elements
    100.
    发明授权
    Clamped receiver array using tubing conveyed packer elements 失效
    夹紧式接收器阵列,使用管道输送封隔器元件

    公开(公告)号:US06206133B1

    公开(公告)日:2001-03-27

    申请号:US09394465

    申请日:1999-09-11

    CPC classification number: E21B47/011 E21B17/1035 E21B23/04 G01V1/52 G01V11/005

    Abstract: A clamped receiver array using tubing conveyed packer elements is disclosed and described. The receiver array is adapted to be received within a borehole and is therefore particularly useful for borehole seismology. The receiver array has a plurality of receivers connected together by a signal cable. The receivers include sensors which can be 3-component geophones. The apparatus is further provided with a fluid conduit running essentially parallel to the signal cable, the fluid conduit having expansible sections located adjacent to the receivers. The expansible sections expand in response to an increase of fluid pressure within the fluid conduit, contacting the associated receiver and thereby pushing the receiver into a coupled or clamped contact with the casing in the wellbore. The expansible sections have a resilient outer sleeve which fits over a fluid conduit element adjacent to the receiver. The apparatus is further provided with a fused valve deployed at the downhole end of the fluid conduit allowing fluid to be circulated through the conduit and a rapid response of the expansible sections in response to an increase of fluid pressure within the fluid conduit.

    Abstract translation: 公开并描述了使用管道输送的封隔器元件的夹紧的接收器阵列。 接收器阵列适于被接收在钻孔内,因此对于井眼地震学特别有用。 接收器阵列具有通过信号电缆连接在一起的多个接收器。 接收机包括可以是三分量地震检波器的传感器。 该设备还设置有基本上平行于信号电缆运行的流体导管,该流体导管具有位于接收器附近的可扩展部分。 可扩展部分响应于流体导管内的流体压力的增加而膨胀,接触相关联的接收器,从而将接收器推入与井筒中的壳体的联接或夹紧接触。 可膨胀部分具有弹性外套筒,其适配在与接收器相邻的流体导管元件上。 该设备还设置有一个展开在流体导管的井下端处的熔断阀,允许流体循环通过管道,并响应于流体管道内的流体压力的增加而对可膨胀部分进行快速响应。

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