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公开(公告)号：WO0023822A3
公开(公告)日：2000-07-27
申请号：PCT/US9923854
申请日：1999-10-14
Applicant: WESTERN ATLAS INT INC , AMBS LORAN D
Inventor： AMBS LORAN D
CPC classification number: G01V1/02 , B06B1/0655 , G01V1/3808
Abstract: A seismic method and system for generating seismic source energy in marine geophysical operations. A slotted housing (12) is moveable by the actuation of piezoelectric elements to generate high power, low frequency seismic source signals. When the piezoelectric elements (30) are activated by electric power, displacement of such elements (30) is enlarged by the slotted housing (12) to generate a pressure pulse in the water. The invention permits single source pressure pulse generation having sufficient power and low frequency. The housing (12) can be towed by a seismic vessel or can be integrated into a self-contained marine vehicle.
Abstract translation: 一种用于在海洋地球物理作业中产生地震源能量的地震方法和系统。 开槽壳体（12）可通过致动压电元件而移动，以产生高功率，低频地震源信号。 当压电元件（30）被电力激活时，这些元件（30）的位移被开槽壳体（12）扩大，从而在水中产生压力脉冲。 本发明允许具有足够功率和低频率的单源压力脉冲产生。 壳体（12）可以被地震船拖动，或者可以集成到独立的船用车辆中。
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公开(公告)号：WO9744158A3
公开(公告)日：1998-07-02
申请号：PCT/US9708183
申请日：1997-05-20
Applicant: WESTERN ATLAS INT INC
Inventor： PFLAGER WILLIAM W , METZLER JOEL K
CPC classification number: F16C32/06 , B23Q1/58 , B23Q5/28 , F16C29/025 , F16C2322/39
Abstract: An improved drive and support for a machine tool by which a part thereof can be supported and driven along a linear path for machining. The drive and support includes a linear slideway (160) having a magnetic track (172) along which a housing will move when a moving magnetic field is generated in an electromagnetic assembly (170/174) mounted in the housing (150). The direction the housing moves depends upon the direction of movement of the generated magnetic field, and first hydrostatic bearing pads (200) acting between the housing (150) and the slideway (160), or between the electromagnetic assembly (170/174) and the track (170) or any combination thereof, to counteract the attractive force between the electromagnet (170/174) and the track (172).
Abstract translation: 改进的机床的驱动和支撑，其一部分可以沿着用于机械加工的线性路径被支撑和驱动。 驱动器和支撑件包括具有磁轨的线性滑道，当在安装在壳体中的电磁组件中产生移动磁场时，壳体将沿其移动。 壳体移动的方向取决于所产生的磁场的运动方向，以及作用在壳体和滑道之间，或者在电磁组件和轨道之间或其任何组合之间的第一静压轴承垫，以抵消 电磁铁和轨道。
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13.发明授权
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公开(公告)号：US5567906B1
公开(公告)日：1998-06-09
申请号：US49725995
申请日：1995-06-30
Applicant: WESTERN ATLAS INT INC
Inventor： REESE JAMES W , SLAGLE TERRY L
CPC classification number: F42B1/032
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公开(公告)号：EP1055135A4
公开(公告)日：2008-04-23
申请号：EP99904259
申请日：1999-01-26
Applicant: WESTERN ATLAS INT INC
Inventor： AMBS LORAN D
Abstract: An apparatus for generating signals and energy for transmission to a large mass (17). The apparatus incorporates a pulsed generator (10) such as a compensated pulsed alternator for storing and for discharging large amounts of energy in a controlled manner for transmission through a vibrator or similar electromechanical device. In the field of seismic exploration, the apparatus discharges seismic source energy into a land mass or water to generate seismic waves which are reflected from the interface between subsurface geologic formations. The pulsed generator (10) permits the seismic source energy to be discharged in a controlled manner to shape the energy signal, and permits large quantities of energy to be discharged to increase the penetration depth and strength of the reflected signals.
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Patent Agency Ranking
公开(公告)号：EP0766836A4
公开(公告)日：1999-07-14
申请号：EP96912878
申请日：1996-04-18
Applicant: WESTERN ATLAS INT INC
Inventor： BEASLEY CRAIG J
CPC classification number: G01V1/006 , G01V1/38 , G01V1/3817
Abstract: A method for minimizing non-uniform insonification of subsurface formations in the presence of steep dips (F) when advancing a swath of elongated parallel seismic streamer cables (13) along a line of survey. A first acoustic source (SL) is stationed at the leading end of the swath and a second source (ST) is stationed at the trailing end of the swath. The sources (SL, ST) are activated in alternative cycles at preselected timed intervals (26, 29) to provide down-dip and up-dip seismic data sets. The data sets are processed and merged to eliminate objectionable shadow zones.
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17.发明授权
公开(公告)号：EP0670013B1
公开(公告)日：1997-12-29
申请号：EP95909568
申请日：1994-07-25
Applicant: WESTERN ATLAS INT INC
Inventor： MAYHUGH JOEL M , VARSAMIS GEORGIOS L
CPC classification number: F16H61/47 , B66D1/44 , E21B23/14 , F16H37/0826 , F16H61/40 , F16H61/4035 , F16H61/46
Abstract: A hydrostatic rotary power transmission system that provides a stable rotation rate at very slow rotation speeds is provided. The system operates in two speed control modes, one being a normal mode for use in the rotation rate range of 50 rpm to the maximum rated speed and a second or fine speed control mode for use in the rotation range of
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公开(公告)号：EP0618994A4
公开(公告)日：1997-12-29
申请号：EP94902195
申请日：1993-10-29
Applicant: WESTERN ATLAS INT INC
Inventor： MAISSA JACQUES
CPC classification number: E21B49/06
Abstract: A sidewall coring tool (20) provided which includes an elongated tool body, low speed high torque rotary coring bit apparatus (44) mounted within the elongated tool body and decentralizing arm apparatus (46, 46') mounted in the tool body on the side opposite the side of the body from which the rotary coring bit (44) is advanced, the decentralizing arm apparatus (46, 46') spaced above and below the location of the rotary coring apparatus (44) for deploying decentralizing arms from the tool body into contact with the bore hole walls. In addition, the sidewall rotary coring tool (20) further includes an electrical control circuit (34) disposed on the earth's surface and monitoring apparatus and circuitry disposed in the tool body and cooperating with the rotary coring bit apparatus (44) for permitting continuous surface visual indication of the travel of the coring bit (44) with respect to the tool body during the coring operation.
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公开(公告)号：EP0624256A4
公开(公告)日：1997-06-04
申请号：EP94901381
申请日：1993-11-04
Applicant: WESTERN ATLAS INT INC
Inventor： LESTER ROBERT A , JUNGHANS PAUL G , HILLIKER DONALD J , SCHMIDT MATHEW G , CASARCA JOSE RENE , WILKINSON GREGORY J
CPC classification number: G01V1/523 , Y10S367/912
Abstract: A logging-tool assembly (16) for generating both flexural wavefields and compressional wavefields in the sidewall formations (30) encountered by a borehole (10). The assembly consists of a sonde (16) constructed of a plurality of segments (34, 36) that are axially rotatable with respect to each other. Each one of two of the segments includes a compartment in which is mounted a dipole bender bar transmitting transducer (40). Two additional segments (100, 102) each contain one or more binaurally sensitive receiver transducers (108, 110). Monopole transmitting (44) and receiving (110) transducers are also included in the respective appropriate segments. An acoustic isolator (29) of novel construction acoustically separates the transmitting transducers from the receiving transducers.
Abstract translation: 一种用于在钻孔（10）遇到的侧壁地层（30）中产生弯曲波场和压缩波场的测井工具组件（16）。 该组件包括由多个可相对于彼此轴向旋转的段（34,36）构成的探测器（16）。 两个分段中的每一个包括其中安装有偶极弯曲器发送变换器（40）的隔室。 两个附加段（100,102）各自包含一个或多个双耳敏感的接收器换能器（108,110）。 单极发射（44）和接收（110）换能器也包括在各个适当的部分中。 新颖结构的声学隔离器（29）将发射换能器从接收换能器声学分离。
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20.发明公开METHOD FOR DERIVING WATER BOTTOM REFLECTIVITY IN DUAL SENSOR SEISMIC SURVEYS. 失效方法确定WASSERBODENREFLETIVITÄT在双韦尔地震测量。
公开(公告)号：EP0680616A4
公开(公告)日：1996-08-28
申请号：EP94926027
申请日：1994-08-24
Applicant: WESTERN ATLAS INT INC
Inventor： PAFFENHOLZ JOSEF
CPC classification number: G01H15/00 , G01V1/3808
Abstract: A method for determining water bottom reflectivity in dual sensor seismic surveys is disclosed. The method eliminates the need for a separate survey to collect calibration data. The method involves summing the pressure and velocity signals (102), and multiplying the result by the inverse Backus operator (108), and then solving for the ocean bottom reflectivity (R) utilizing an optimization algorithm. Also disclosed is a method for combining the dual sensor data which results is the complete elimination of the first order peg-leg multiples and the modulation of the sub-surface reflector strenght with the ocean bottom reflectivity. The method involves summing the pressure and velocity signals, and multiplying the result by the inverse Backus operator containing the correct value for the ocean bottom reflectivity (R) found with the method described above.
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