HARMONIC SEISMIC WAVE GENERATOR AND METHOD OF SEISMIC PROSPECTING

    公开(公告)号:WO2022117131A1

    公开(公告)日:2022-06-09

    申请号:PCT/CZ2021/050140

    申请日:2021-11-29

    Inventor: MÁLEK, Jiří

    Abstract: The present invention relates to a harmonic seismic wave generator which continuously generates seismic waves with a single precisely defined frequency and amplitude and with a special radiation characteristic. The invention further relates to an assembly useful for seismic prospecting and a method of seismic prospecting. A signal generated by the generator propagates through the rock environment, is received by an array of the seismic stations and is processed in a way that detects and analyzes nonlinear phenomena in the propagation of seismic waves. The use of the generator allows, in particular, a detection of critical stress before an earthquake.

    SHEAR WAVE GENERATOR
    5.
    发明申请
    SHEAR WAVE GENERATOR 审中-公开
    剪切波发生器

    公开(公告)号:WO2006068489A1

    公开(公告)日:2006-06-29

    申请号:PCT/NO2005/000430

    申请日:2005-11-16

    CPC classification number: G01V1/053

    Abstract: Shear wave generator for use subsea, comprising: an excitation unit (1) that is fastened to a top plate (2); a skirt (3) that at an upper end (3a) is fastened sealingly to the top plate and extending downward to an open lower end (3b) of the skirt, such that the top plate and skirt form a closed space by lowering to the seabed; and a pump (5) arranged with fluid communication between said space and the surroundings, such that by pumping water out of said space underpressure is formed acting to suck the shear wave generator fixedly to and partly into the seabed, and by pumping water into said space overpressure is formed acting to lift the shear wave generator up from the seabed. The shear wave generator is distinguished in that the skirt (3) is formed with larger outer diameter or width at its upper end than at its lower end.

    Abstract translation: 用于海底的剪切波发生器,包括:紧固到顶板(2)的激励单元(1); 裙部(3),其在上端(3a)被密封地紧固到顶板并且向下延伸到裙部的敞开的下端(3b),使得顶板和裙部通过下降到 海底; 以及泵(5),其布置成在所述空间和周围环境之间具有流体连通性,使得通过将水泵送出所述空间负压而形成为用于将所述剪切波发生器固定地部分地吸入所述海底并部分地吸入所述海床,并且通过将水泵入所述 形成空间超压,用于将剪切波发生器从海底提升。 剪切波发生器的特征在于,裙部(3)在其上端处比其下端形成有更大的外径或宽度。

    APPARATUS AND METHOD FOR USING A SURFACE OSCILLATOR AS A DOWNHOLE SEISMIC SOURCE
    6.
    发明申请
    APPARATUS AND METHOD FOR USING A SURFACE OSCILLATOR AS A DOWNHOLE SEISMIC SOURCE 审中-公开
    使用表面振荡器作为井下地震源的装置和方法

    公开(公告)号:WO02057808A3

    公开(公告)日:2003-03-06

    申请号:PCT/US0201377

    申请日:2002-01-18

    CPC classification number: G01V1/52 G01V1/02 G01V1/047

    Abstract: A system and method for utilizing a surface located oscillator (15) to generate seismic signals at a downhole location. The system includes a vibratory source (15) for generating axial vibrational energy in a tubular string (40) anchored in the borehole (55) at a suitable location. The vibratory source may be operated at a predetermined frequency or may generate a swept frequency signal. The axial vibrations are transmitted through the tubular string (40) and impart a seismic signal through the anchor (50) to the formation. In different configurations, the system imparts broadband seismic signals into the formation. Sensors (20, 21, 22, 45) are mounted on the vibratory source and downhole anchor for monitoring the system operation. Seismic receivers (70a, 70n, 80a, 80n, 90a, 90n) are deployed on the surface, in offset wells, or in the source well. Signals from the receivers are transmitted to a control unit (25). The control unit utilizes the sensor and receiver signals to control the operation of the vibratory source.

    Abstract translation: 一种用于利用表面定位振荡器(15)在井下位置产生地震信号的系统和方法。 该系统包括振动源(15),用于在合适的位置锚固在钻孔(55)中的管状串(40)中产生轴向振动能。 振动源可以以预定频率操作或者可以产生扫频信号。 轴向振动通过管柱(40)传递,并通过锚(50)将地震信号传递给地层。 在不同的配置中,系统将宽带地震信号输入地层。 传感器(20,21,22,45)安装在振动源和井下锚上,用于监测系统操作。 地震接收器(70a,70n,80a,80n,90a,90n)部署在表面,偏移井或源井中。 来自接收器的信号被发送到控制单元(25)。 控制单元利用传感器和接收器信号来控制振动源的操作。

    OPTIMAL PHASE RELATIONSHIP
    8.
    发明申请
    OPTIMAL PHASE RELATIONSHIP 审中-公开
    最佳的相位关系

    公开(公告)号:WO2016130541A3

    公开(公告)日:2016-12-22

    申请号:PCT/US2016017144

    申请日:2016-02-09

    CPC classification number: G01V1/005 G01V2210/127

    Abstract: Improved methods of gather high fidelity vibratory seismic surveys for ZenSeis® systems wherein at least one optimal phase encoding schemes for surveys having 2-8 vibratory sources are disclosed. These encoding schemes can be hard coded into the source controller and will allow for quality data to be obtained on each survey. Further, the data will also have the best separation during inversion processing steps, leading to an optimal seismic survey.

    Abstract translation: 为ZenSeis®系统收集高保真振动地震勘测的改进方法,其中公开了用于具有2-8个振动源的勘测的至少一个最佳相位编码方案。 这些编码方案可以硬编码到源控制器中,并可以在每次调查中获得质量数据。 此外,在反演处理步骤中,数据也将具有最佳分离度,从而实现最佳的地震勘探。

    SYSTEMS AND METHODS FOR SEISMIC EXPLORATION IN DIFFICULT OR CONSTRAINED AREAS
    9.
    发明申请
    SYSTEMS AND METHODS FOR SEISMIC EXPLORATION IN DIFFICULT OR CONSTRAINED AREAS 审中-公开
    不同或受约束地区地震勘探的系统与方法

    公开(公告)号:WO2015193695A1

    公开(公告)日:2015-12-23

    申请号:PCT/IB2014/001527

    申请日:2014-06-19

    CPC classification number: G01V1/09 G01V1/047 G01V2210/1212 G01V2210/1295

    Abstract: A method for performing a seismic survey using at least one carrier (2) which includes a seismic source (8). The method including: deploying each of the at least one carriers by the delivery vehicle (4), wherein each of the at least one carriers includes: a plurality of supports (126) configured to enable a baseplate (124) to contact ground, wherein the baseplate is formed by each foot of the plurality of supports; a seismic source which includes a lower portion configured to push through unconsolidated materials and configured to contact the ground; and a power source (100) configured to operate the seismic source; and transmitting at least one seismic signal from the seismic source.

    Abstract translation: 一种用于使用包括地震源(8)的至少一个载体(2)执行地震测量的方法。 所述方法包括:由所述输送车辆(4)展开所述至少一个载体中的每一个,其中所述至少一个载体中的每一个包括:多个支撑件(126),其构造成使得基板(124)能够接地,其中 所述底板由所述多个支撑体的每个脚形成; 地震源,其包括被配置为推动未合并材料并被配置为接触地面的下部; 以及被配置为操作所述地震源的电源(100); 以及从所述地震源发送至少一个地震信号。

    DIRECTIONAL SELF-BURYING SENSOR SYSTEM AND METHOD
    10.
    发明申请
    DIRECTIONAL SELF-BURYING SENSOR SYSTEM AND METHOD 审中-公开
    方向性自传感器系统及方法

    公开(公告)号:WO2014207059A1

    公开(公告)日:2014-12-31

    申请号:PCT/EP2014/063433

    申请日:2014-06-25

    Inventor: BRIZARD, Thierry

    Abstract: Node, system and method for collecting seismic data. A node (300) for collecting seismic data includes a base (302) configured to land on the ocean floor; and a head (304) connected to the base (302) through a connecting member (306) and configured to bury itself into the ocean floor. The head (304) includes a seismic sensor (334a) configured to detect seismic data and first to third burying units (450A- C) configured to bury the head (304).

    Abstract translation: 用于收集地震数据的节点,系统和方法。 用于收集地震数据的节点(300)包括:底座(302),其被配置为落在海底; 以及通过连接构件(306)连接到基座(302)并被构造成将自身埋入海底的头(304)。 头部(304)包括被配置为检测地震数据的地震传感器(334a)和被配置为埋置头部(304)的第一至第三掩埋单元(450A-C)。

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