公开(公告)号：US5268537A

公开(公告)日：1993-12-07

申请号：US906069

申请日：1992-06-29

申请人： Graham A. Winbow ,  Jacob E. Stone

发明人： Graham A. Winbow ,  Jacob E. Stone

IPC分类号： G01V1/133 ,  G01V1/52 ,  G01V1/40

CPC分类号： G01V1/52 ,  G01V1/133 ,  Y10S367/911 ,  Y10S367/912

摘要： Method and apparatus for generating resonant broad band pressure waves in a fluid-filled wellbore for seismic exploration. In the preferred embodiment, a device is provided in a borehole; the device comprises a cylindrical choke body and a means at each end of the choke body for partially or completely blocking off the borehole and creating a fluid-filled borehole cavity. The fluid inside the cavity is oscillated to establish a standing pressure wave of a desired bandwidth in the fluid. The standing wave is radiated through the wellbore into the earth formation and is received by seismic detectors. The fluid is oscillated over a range of frequencies to generate more information about the earth formation.

摘要翻译： 在用于地震勘探的流体充填井筒中产生共振宽带压力波的方法和装置。 在优选实施例中，设置在钻孔中; 该装置包括圆柱形扼流体和在扼流体的每个端部处的装置，用于部分地或完全地阻挡钻孔并产生流体填充的井眼腔。 空腔内的流体振荡以建立流体中期望带宽的驻压波。 驻波通过井眼辐射进入地层，由地震探测器接收。 流体在频率范围内振荡以产生关于地层形成的更多信息。

公开(公告)号：US4116300A

公开(公告)日：1978-09-26

申请号：US823570

申请日：1977-08-11

申请人： Jacob E. Stone

发明人： Jacob E. Stone

IPC分类号： G01V1/04

CPC分类号： G01V1/04

摘要： A system for controlling the tilt of the vehicle and vibrator when the vibrator is being operated on irregular surfaces. Tilt switches detect excessive vehicle tilt. A bleeder network activated by the tilt switches reduces the pressure in the air bag on the side of the vibrator opposite from the direction of the vehicle tilt. A supply network repressurizes the air bag on the side of the vibrator opposite from the direction of the tilt.

摘要翻译： 一种用于当振动器在不规则表面上操作时用于控制车辆和振动器的倾斜的系统。 倾斜开关检测车辆倾斜。 由倾斜开关激活的泄放网络减小了与车辆倾斜方向相反的振动器一侧的气囊中的压力。 供应网络将振动器侧面的气囊与倾斜方向相反地加压。