Wide bandwidth borehole dipole source for acoustic logging

    公开(公告)号:US10288758B2

    公开(公告)日:2019-05-14

    申请号:US14406502

    申请日:2012-06-11

    摘要: A dipole source for borehole acoustic logging includes a cylindrical shell, a center beam coupled to the cylindrical shell, a movable projector inside the cylindrical shell to impact the center beam, and a cavity acoustically insulating the interior of the cylindrical shell from the exterior of the cylindrical shell. An acoustic logging tool for making measurements of a substrate surrounding a borehole with a body insertable in the borehole is also provided. The body includes an acoustic detector and a dipole source as above, along the axial length. The acoustic logging tool may include a control unit to process data collected from the acoustic detector and obtain information about the substrate surrounding the borehole.

    Pneumatic control for marine seismic source and method
    2.
    发明授权
    Pneumatic control for marine seismic source and method 有权
    海洋地震源气动控制及方法

    公开(公告)号:US09507038B2

    公开(公告)日:2016-11-29

    申请号:US14576624

    申请日:2014-12-19

    申请人: SERCEL

    CPC分类号: G01V1/147 G01V1/137

    摘要: Method, source and shuttle configured to generate acoustic waves under water. The shuttle includes a firing piston closing a firing chamber and contributing to holding the compressed gas, and a transitional region connected to the firing piston. The firing chamber and the transitional region define a most restrictive area through which the compressed gas is released toward the at least one exhaust port, the most restrictive area is substantially smooth while the movable shuttle moves toward the open position, and a profile of the transitional region is selected to reduce a high-frequency content of the acoustic waves.

    摘要翻译: 方法,源和梭配置成在水下产生声波。 梭子具有关闭燃烧室并有助于保持压缩气体的击发活塞,以及连接到燃烧活塞的过渡区域。 燃烧室和过渡区域限定了最严格的区域,通过该区域压缩气体朝着至少一个排气口释放,最大限制性区域基本上是平滑的,而可移动梭子朝向打开位置移动,并且过渡 选择区域以降低声波的高频内容。

    SEISMIC FREQUENCY SWEEP ENHANCEMENT
    3.
    发明申请
    SEISMIC FREQUENCY SWEEP ENHANCEMENT 有权
    地震频率增强

    公开(公告)号:US20130250733A1

    公开(公告)日:2013-09-26

    申请号:US13621578

    申请日:2012-09-17

    IPC分类号: G01V1/147

    CPC分类号: G01V1/147 G01V1/005 G01V1/04

    摘要: A method of performing a seismic sweep includes forming a composite force profile; constructing a target seismic frequency sweep using the composite force profile; and operating a seismic source using the constructed target frequency seismic sweep.

    摘要翻译: 执行地震扫描的方法包括形成复合力分布; 使用复合力分布构造目标地震频率扫描; 并使用构造的目标频率地震扫描来操作地震源。

    Magnetic Mass-Lift Impulsive Seismic Energy Source Including Attracting and Repulsing Electromagnets
    4.
    发明申请
    Magnetic Mass-Lift Impulsive Seismic Energy Source Including Attracting and Repulsing Electromagnets 审中-公开
    包括吸引和排斥电磁铁的磁力质量冲击震源能量

    公开(公告)号:US20120269032A1

    公开(公告)日:2012-10-25

    申请号:US13533574

    申请日:2012-06-26

    IPC分类号: G01V1/147

    CPC分类号: G01V1/02

    摘要: A seismic energy source includes a base plate and a block fixedly coupled in a frame. The base plate is configured for contact with a part of the Earth's subsurface to be seismically energized. The frame has a first electromagnet associated therewith. A second electromagnet is disposed in a travelling reaction mass, which is movably disposed in the frame between the first electromagnet assembly and the top block. The reaction mass includes at least a third electromagnet associated therewith. The source has circuits for selectively energizing the first, second and at least a third electromagnets, and which are configured to energize the first and second electromagnets to repel each other such that the traveling reaction mass is lifted from the first electromagnet, and configured to energize the at least a third electromagnet after a selected delay time to cause attraction between the traveling reaction mass and the top block

    摘要翻译: 地震能量源包括底板和固定地联接在框架中的块体。 基板被配置为与地球的地下部分地面接触以进行地震通电。 框架具有与其相关联的第一电磁体。 第二电磁铁设置在可移动地设置在第一电磁体组件和顶块之间的框架中的行进反作用块中。 反应物质包括与其相关联的至少第三电磁体。 源具有用于选择性地激励第一,第二和至少第三电磁体的电路,并且其被配置为使第一和第二电磁体通电以彼此排斥,使得行进反作用物质从第一电磁体提升,并且被配置为激励 所述至少第三电磁体在所选择的延迟时间之后引起所述行进反作用物质与所述顶块之间的吸引

    Accelerated weight drop for use as a seismic energy source and a method of operation thereof
    5.
    发明申请
    Accelerated weight drop for use as a seismic energy source and a method of operation thereof 有权
    用作地震能源的加速重量下降及其操作方法

    公开(公告)号:US20050167186A1

    公开(公告)日:2005-08-04

    申请号:US10770964

    申请日:2004-02-03

    申请人: Clinton Vedders

    发明人: Clinton Vedders

    CPC分类号: G01V1/147

    摘要: The present invention provides an accelerated weight drop for use as a seismic energy source, a method for operating an accelerated weight drop for use as a seismic energy source, and a seismic survey system including the accelerated weight drop. The accelerated weight drop, among other elements, may include a striker positionable over a surface, a compressed gas spring configured to drive the striker toward the surface thus creating seismic waves within the surface, and a cushioning means positioned proximate the compressed gas spring for dissipating reflected energy. In this embodiment the striker is slidably coupled to the compressed gas spring.

    摘要翻译: 本发明提供了用作地震能量源的加速重量下降,用于操作用作地震能量源的加速重量降的方法,以及包括加速重量下降的地震勘测系统。 除了其他元件之外,加速的重量下降可以包括可定位在表面上的冲击器,压缩气体弹簧,其构造成将冲击器朝向表面驱动,从而在表面内产生地震波;以及靠近压缩气体弹簧设置的缓冲装置,用于消散 反射能量。 在该实施例中,撞针可滑动地联接到压缩气弹簧。

    Deadweight dropping type wave source
    6.
    发明授权
    Deadweight dropping type wave source 失效
    无重型跌落型波源

    公开(公告)号:US5416281A

    公开(公告)日:1995-05-16

    申请号:US084263

    申请日:1993-07-08

    申请人: Kimio Ogura

    发明人: Kimio Ogura

    CPC分类号: G01V1/147 G01V1/52

    摘要: In a bore holes, a plurality of resilient members and plates are piled up alternately to form a laminate, and a deadweight is dropped onto the laminate. The resilient members are deformed due to the impact force of the dropped deadweight to cause bore hole water among the plates to be forced out in the outward direction, and elastic waves to occur in the bore hole wall.

    摘要翻译: PCT No.PCT / JP92 / 01418 Sec。 371日期:1993年7月8日 102(e)日期1993年7月8日PCT提交1992年11月2日PCT公布。 公开号WO93 / 09448 日期:1993年5月13日。在钻孔中,多个弹性构件和板交替堆叠以形成层压体,并且将自重落在层压板上。 弹性构件由于下落的重量的冲击力而变形,导致板之间的钻孔水在向外的方向上被迫离开,并且弹性波发生在钻孔壁中。

    Mass retrieval for acoustic pulse generator
    7.
    发明授权
    Mass retrieval for acoustic pulse generator 失效
    声波脉冲发生器的质量检索

    公开(公告)号:US5154254A

    公开(公告)日:1992-10-13

    申请号:US510352

    申请日:1990-04-16

    IPC分类号: G01V1/147

    CPC分类号: G01V1/147

    摘要: A method and an apparatus for mass retrieval for an acoustic pulse generator are disclosed herein. In an impulse type seismic generating apparatus an air spring, mechanical spring, controlled pressurization of an air spring or other energy storage medium is employed to use potential energy to raise the impact mass to a resting position above an earth contacting baseplate as quickly as possible after the impact mass strikes the baseplate.

    摘要翻译: 本文公开了用于声脉冲发生器的质量检索的方法和装置。 在脉冲型地震产生装置中,使用空气弹簧,机械弹簧,空气弹簧或其他能量存储介质的受控加压,以使用势能将冲击质量尽可能快地升高到接地基板上方的静止位置 冲击质量撞击基板。

    Anti-bounce device for a mass striking a target element
    8.
    发明授权
    Anti-bounce device for a mass striking a target element 失效
    用于大量撞击目标元件的防反弹装置

    公开(公告)号:US5035297A

    公开(公告)日:1991-07-30

    申请号:US511766

    申请日:1990-04-20

    申请人: Patrick Meynier

    发明人: Patrick Meynier

    IPC分类号: G01V1/147

    CPC分类号: G01V1/147 Y10S367/912

    摘要: An anti-bounce device for a mass striking a target element, with the device including a counter mass and a linking arrangement for holding the counter mass spaced from the mass and a braking arrangement for delaying the counter mass so as to put the counter mass in phase opposition with the mass as the mass bounces after impact thereby dissipating any bouncing force. The linking arrangement may take the form of a volume of fluid in a chamber provided between the mass and counter mass, and the linking arrangement and braking arrangement may also include a layer of a damping material or deformable or flexible elements acting by friction.

    摘要翻译: 一种用于大量撞击目标元件的防反弹装置,其中该装置包括反质量块和用于保持与质量隔开的反质量块的连接装置和用于延迟反质量块的制动装置,以将反质量块放入 与质量相反,随着质量在冲击后反弹,从而消散任何弹跳力。 连接装置可以在设置在质量块和反质量块之间的腔室中采取体积的流体的形式,并且连接装置和制动装置还可以包括阻尼材料层或通过摩擦作用的可变形或柔性元件层。

    Alignment restoration means for use in seismic apparatus
    9.
    发明授权
    Alignment restoration means for use in seismic apparatus 失效
    对位恢复装置用于地震装置

    公开(公告)号:US4967870A

    公开(公告)日:1990-11-06

    申请号:US295658

    申请日:1989-01-09

    申请人: Tom P. Airhart

    发明人: Tom P. Airhart

    IPC分类号: G01V1/147

    CPC分类号: G01V1/147 Y10S181/401

    摘要: Alignment restoring apparatus for use with seismic shock generators that includes a support frame, a lift frame supported by the support frame, a seismic generator peripherally supported by the lift frame, and a base plate supported by the life frame and arranged to be impacted by the seismic generator. The alignment restoring apparatus includes biasing means located between the lift frame and the base plate to provide a restoring force upon movement of the frame relative to the base plate whereby the initial relationship between the frame and base plate is re-established assuring that the time lapse from initiating the propulsion of the seismic generator toward the base plate to the time of impact therebetween is repeatable.

    摘要翻译: 用于地震冲击发生器的对准恢复装置,其包括支撑框架,由支撑框架支撑的升降机架,由升降机框架周边支撑的地震发生器,以及由所述生命框架支撑并被布置成受 地震发生器 对准恢复装置包括位于提升框架和底板之间的偏置装置,以在框架相对于基板移动时提供恢复力,由此重新建立框架和底板之间的初始关系,确保时间流逝 从地震发生器向基板的推进到其间的冲击时是可重复的。

    Amphibious seismic source
    10.
    发明授权
    Amphibious seismic source 失效
    两栖地震源

    公开(公告)号:US4799572A

    公开(公告)日:1989-01-24

    申请号:US048332

    申请日:1987-05-11

    申请人: Tom P. Airhart

    发明人: Tom P. Airhart

    IPC分类号: G01V1/09 G01V1/147 G01V1/04

    CPC分类号: G01V1/09 G01V1/147

    摘要: An impulsive seismic generator is mounted on a swamp buggy suitable for operations both in a marshy environment and on land. The generator employs a target plate which may be lowered into a body of water or mud beneath the buggy so as to contact subsurfaces of varying degrees of firmness. The submerged components of the generator are surrounded by a water-tight barrier which isolates the space between a descending mass and the receiving target plate from the surrounding fluid.

    摘要翻译: 脉冲地震发生器安装在沼泽车上,适用于潮湿环境和陆地上的作业。 发电机采用目标板,该目标板可以降低到马车下面的水体或泥土中,以便接触不同程度的坚固度的亚表面。 发电机的淹没部件由防水屏障包围,隔离层将下降的质量块和接收目标板块之间的空间与周围的流体隔开。