公开(公告)号：US5212668A

公开(公告)日：1993-05-18

申请号：US772417

申请日：1991-10-07

Applicant: Morten Svendsen

Inventor： Morten Svendsen

IPC: G01V1/36

CPC classification number: G01V1/364 ,  G01V2210/324

Abstract: A method of quantifying the level of weather and sea noise during marine seismic surveys which often negatively effect the acquired data produced thereby, by recording this noise along the seismic line prior to the shot registration and possibly also during a break in the shot registration and/or after the conclusion of the shot registration, and obtaining a picture of these noise conditions which correspond to those which are found in the stacked records of common reflection points for improving the signal/noise ratio in the stacked CMP data.

Abstract translation: 一种在海洋地震勘测期间量化天气和海洋噪声水平的方法，其通常在拍摄注册之前沿着地震线记录这种噪声，并且可能在射击注册和/ 或者在拍摄注册结束之后，获得这些噪声条件的图像，这些噪声条件对应于在共同反射点的堆叠记录中找到的噪声条件，以改善堆叠的CMP数据中的信噪比。

公开(公告)号：US5113376A

公开(公告)日：1992-05-12

申请号：US657062

申请日：1991-02-15

Applicant: Rolf Bjerkoy

Inventor： Rolf Bjerkoy

IPC: G01V1/38

CPC classification number: G01V1/3808

Abstract: In seismic surveys in waters covered with ice, where seismic impulses are actuated under water and reflected signals are detected by a streamer cable (2) towed behind a vessel (1), in order to avoid the source of noise located outside the seismic system due to the icebreaking operation of the vessel (1) the vessel (1) is stopped during active survey and the streamer cable (3) is hauled in with a speed corresponding to the desired propulsion speed of the cable during detection. After detection the vessel again resumes ordinary operational speed and the streamer is paid out with a speed which maintains the desired advancing speed of the system.

Abstract translation: 在冰覆盖的水域的地震勘测中，地震冲击在水下致动，反射信号由拖缆（2）拖在船舶（1）后面的流光缆（2）进行检测，以避免位于地震系统外部的噪声源 对于容器（1）的破冰操作，在主动测量期间停止容器（1），并且在检测期间以与所述电缆的期望推进速度对应的速度将拖缆（3）拖拉。 在检测后，船只再次恢复正常的操作速度，并且拖缆以保持系统期望行进速度的速度来支付。

公开(公告)号：US5973995A

公开(公告)日：1999-10-26

申请号：US836938

申请日：1997-08-04

Applicant: Robin Charles Walker ,  Olav Lindtjoern

Inventor： Robin Charles Walker ,  Olav Lindtjoern

IPC: G01V1/38 ,  G01V1/16

CPC classification number: G01V1/3808

Abstract: The present invention enables both deep marine seismic surveys and site seismic surveys to be performed simultaneously. A survey vessel tows a first seismic array (6, 16, 20) for a deep survey and a second seismic array (6, 16, 20) for the site survey. The arrays are operationally distinct but may share common physical components.

Abstract translation: PCT No.PCT / GB95 / 02836 Sec。 371日期：1997年8月4日 102（e）日期1997年8月4日PCT提交1995年12月6日PCT公布。 公开号WO96 / 18117 日期1996年6月13日本发明能够同时进行深海洋地震勘测和现场地震勘测。 一个调查船拖曳一个第一个地震阵列（6,16,20）进行深度勘测，第二个地震阵列（6,16,20）进行现场调查。 阵列在操作上是不同的，但可以共享共同的物理组件。

公开(公告)号：US5278804A

公开(公告)日：1994-01-11

申请号：US806340

申请日：1991-12-13

Applicant: Aage Halvorsen

Inventor： Aage Halvorsen

IPC: G01V1/20 ,  G01V1/38

CPC classification number: G01V1/201

Abstract: For the balancing of seismic streamer cables (1) circular ring or sleeve-shaped weighted bodies are adjustably attached at desired intervals on the cable. The weighted bodies can be resilient for temporarily enlarging an opening (3) to receive the cable therethrough and for closing onto the cable in use, or can be circular cross-sectional bodies formed by two parts (4, 5, 4', 5') partially connected together by a single pin (6, 6') and fastened together by a spring pin (7) or hook-shaped pivoted lever (8) engageable with a retainer pin (10).

Abstract translation: 为了平衡地震拖缆电缆（1），圆形环或套筒形加重体可按所需间隔可调节地连接在电缆上。 加重物体可以是弹性的，用于暂时扩大开口（3）以接收电缆，并在使用中封闭电缆，或者可以是由两部分（4,5,4'，5'）形成的圆形横截面体， ）通过单个销（6,6'）部分地连接在一起并且通过与保持销（10）可接合的弹簧销（7）或钩形枢转杆（8）紧固在一起。

公开(公告)号：US5210718A

公开(公告)日：1993-05-11

申请号：US882548

申请日：1992-05-13

Applicant: Cato Bjelland ,  Jan-Age Langeland

Inventor： Cato Bjelland ,  Jan-Age Langeland

IPC: G01H3/00 ,  G01V13/00

CPC classification number: G01H3/005 ,  G01V13/00

Abstract: A method for calibration of hydrophone groups is based on the use of a Helmholtz resonator, which is arranged such that a seismic streamer (Il) or sections thereof can be placed in the resonator's cavity (1) and connected via a hydrophone group selector (9) to a signal analyzer (6). A sound source (3) provided in the Helmholtz resonator is driven by a white noise signal at a frequency close to the resonator's resonance frequency. The sensitivity of the hydrophones in the respective hydrophone group (10) which is to be calibrated is determined by passing the hydrophone signals to the signal analyzer (6) where they are compared with a reference signal from a reference transducer (5), e.g., a measuring microphone, provided in the resonator. The Helmholtz resonator is designed as a drum-shaped vessel (1) provided with a funnel-shaped neck which constitutes an acoustic horn (2) and creates an impedance matching between the vessel (1), which constitutes a resonant cavity, and an electrodynamic transducer, which constitutes the sound source (3), provided at the smaller end of the horn (2). For the measurements a measuring microphone (5) is provided inside the cavity together with, e.g., a reel (4) or drum on which are wound sections of a seismic streamer, or a seismic streamer (11), whose hydrophone groups (10) are to be calibrated.

Abstract translation: 用于校准水听器组的方法基于使用亥姆霍兹共振器，其被布置为使得地震拖缆（II）或其部分可以被放置在谐振器腔（1）中并且经由水听器组选择器（9）连接 ）到信号分析器（6）。 设置在亥姆霍兹共振器中的声源（3）由接近谐振器谐振频率的白噪声信号驱动。 通过将水听器信号传递到信号分析器（6），将它们与来自参考换能器（5）的参考信号进行比较来确定待校准的相应水听器组（10）中的水听器的灵敏度， 设置在谐振器中的测量麦克风。 亥姆霍兹共振器被设计为鼓形容器（1），其设有漏斗形颈部，其构成声喇叭（2），并且在构成谐振腔的容器（1）和电动机 传感器构成声源（3），设置在喇叭（2）的较小端。 对于测量，测量麦克风（5）与例如地震拖缆的卷绕部分的卷轴（4）或滚筒或地震拖缆（11）一起设置在空腔内，其水听器组（10） 将被校准。

公开(公告)号：US5199003A

公开(公告)日：1993-03-30

申请号：US798724

申请日：1991-11-29

Applicant: Einar Gjestrum

Inventor： Einar Gjestrum

IPC: G01V1/20 ,  H01R13/633

CPC classification number: H01R13/633 ,  G01V1/201 ,  G01V2001/207

Abstract: Release device for a cable used during seismic surveys at sea and towed through the water behind a vessel so that in the event of the occurrence of obstacles or other occasions when it is desirable to release the cable (1) from the towing vessel, a controlled release of the cable is possible so that it is not severed, but can be recovered for further use. At one or more locations in such cables release sections (2) are inserted which contain sensors which sense loading in the section and in the event of overloading or other occasions when release is desirable, an element (5) is activated which cause a release mechanism (6) to be activated and thereby causes a split in the cable (1) at a predetermined location.

Abstract translation: 用于海上地震勘测期间使用的电缆的释放装置，并通过船舶后面的水拖曳，以便在发生障碍物或其他场合时，如果希望将电缆（1）从牵引船上释放，则控制 电缆的释放是可能的，使得它不被切断，但可被回收以供进一步使用。 在这种电缆中的一个或多个位置处，插入释放部分（2），其包含传感器，其感测部分中的负载，并且在发生过载或其它情况下，当需要释放时，激活元件（5），其引起释放机构 （6）被激活，从而使电缆（1）在预定位置处分开。

公开(公告)号：US5157636A

公开(公告)日：1992-10-20

申请号：US682084

申请日：1991-04-09

Applicant: Rolf Bjerkoy

Inventor： Rolf Bjerkoy

IPC: B63G8/42 ,  G01V1/02 ,  G01V1/38

CPC classification number: G01V1/006 ,  B63G8/42 ,  G01V1/3861

Abstract: In towing sources of seismic energy behind a vessel, especially in connection with seismic surveys in waters which are covered with ice, the buoyancy floats and also the sources of seismic energy are readily influenced by broken up ice collecting behind the icebreaking towing vessel. In order to stabilize the tow of sources of seismic energy a towing line (7) is secured between the buoyancy means (4) belonging to the tow of sources of energy (3) and the vessel (1) at a point (10) which is located in the area of the waterline, so that towing line (7) will extend in the area of the waterline. Another towing line (8) is connected directly with the array of sources of seismic energy (5) and is secured to a towing point (11) on the vessel (1) located below the waterline. An arrangement is also disclosed for securing the towing line (8) in a suitable location to avoid influence from ice and, furthermore, the design of floats (4) avoids influence from the ice.

Abstract translation: 在拖船后面的地震能量牵引力方面，特别是与被冰盖覆盖的水域进行的地震勘测有关，浮力浮标以及地震能量来源容易受到破冰拖船后面的冰块收集的影响。 为了稳定地震能量源的牵引线，牵引线（7）固定在属于能量源（3）和容器（1）的丝束的浮力装置（4）之间的点（10）处， 位于水线区域，使得牵引线（7）将在水线的区域延伸。 另一个牵引线（8）直接与地震能量源（5）阵列连接，并固定在位于水线下方的血管（1）上的牵引点（11）上。 还公开了一种用于将牵引线（8）固定在适当位置以避免来自冰的影响的布置，此外，浮体（4）的设计避免了来自冰的影响。

公开(公告)号：US5014249A

公开(公告)日：1991-05-07

申请号：US491103

申请日：1990-03-09

Applicant: Mundy Brink

Inventor： Mundy Brink

IPC: G01V1/36

CPC classification number: G01V1/364 ,  G01V2210/324

Abstract: A method in real time control systems for seismic interference to indicate an acceptable level of interference in relation to the amplitude, angle of incidence, and frequency of a seismic reflection signal, and to remove such interference loaded signals during seismic surveys, comprises steps to determine lower threshold values of coverage, identify interference and amplitude anomaly in the recorded signal of reflection, estimate the expected value of amplitude characteristic of the signal on the basis of recorded amplitude characteristics of recorded signals from one or a plurality of preceding series of survey, mark time windows in which interference and/or amplitude anomaly are identified, generate a table of the number of times a certain time window was marked in the series of recordings of the same point of reflection, assign limits on the number of interference events to various marked time windows, and remove from the recordings those time windows wherein the number of interference events exceeds the limit.

Abstract translation: 一种用于地震干扰的实时控制系统中的方法，用于指示与地震反射信号的振幅，入射角和频率相关的可接受的干扰水平，并且在地震测量期间消除这种干扰负载信号，包括确定 降低覆盖阈值，识别记录的反射信号中的干扰和幅度异常，基于来自一个或多个前一系列测量的记录信号的记录振幅特性，估计信号的幅度特性的期望值，标记 识别干扰和/或幅度异常的时间窗口生成在同一反射点的一系列记录中标记某个时间窗口的次数的表格，将干扰事件数量的限制分配给各种标记 时间窗口，并从记录中删除那些其中干扰次数的时间窗口 nce事件超过极限。

公开(公告)号：US4748599A

公开(公告)日：1988-05-31

申请号：US943096

申请日：1986-12-18

Applicant: Einar Gjestrum ,  Ian Rogers

Inventor： Einar Gjestrum ,  Ian Rogers

IPC: B63B21/66 ,  G01V1/38 ,  B63H25/00

CPC classification number: G01V1/3861 ,  B63B21/66

Abstract: A device for controlling a seismic cable that is towed behind a vessel (1), so that the cable follows a path that is displaced laterally in relation to the path of the vessel, comprises a frame structure (6, 7) extending transversely to the towing direction and outwardly from the area of gun suspension from the cable having longitudinal frame members provided with intermediate transverse members extending obliquely or in a curved manner whereby the front ends of the transverse members, as seen in the towing direction, are disposed further outwards laterally than the rear ends of the transverse members. When towed, the frame will this be forced outwardly by the water flowing through the frame structure and the desired lateral displacement will be achieved.

Abstract translation: 一种用于控制被拖到容器（1）后面的地震电缆的装置，使得所述电缆沿着相对于所述容器的路径横向移位的路径，包括横向于所述容器（1）横向延伸的框架结构（6,7） 从具有纵向框架构件的电缆的悬挂方向向外并向外延伸，所述纵向框架构件具有倾斜或弯曲的方式延伸的中间横向构件，从而横向构件的前端沿拖曳方向看向外侧向外侧 比横向构件的后端。 当被拖曳时，框架将被流过框架结构的水向外强制，并且将实现期望的横向位移。

公开(公告)号：US6026056A

公开(公告)日：2000-02-15

申请号：US101815

申请日：1998-07-17

Applicant: Nils Lunde ,  Leon John Walker

Inventor： Nils Lunde ,  Leon John Walker

IPC: G01V1/02

CPC classification number: G01V1/006

Abstract: A method and apparatus for controlling the operation of a multiple-element marine seismic pulse generating source in rough sea surface conditions. The method first determines the shape of the path along which the elements are traveling at the point in time just before each element of the source is activated. Once the shape of the path is known, the relative vertical position of each element relative to a fixed reference is determined. Adjustments can then be entered into the firing times for each element such that the primary pressure peaks constructively interfere with one another. In a preferred embodiment, a plurality of inclinometers associated with the harness from which the devices are suspended provides a tilt angle measurement from which the shape of the path can be determined and the firing times adjusted accordingly.

Abstract translation: PCT No.PCT / GB97 / 00094 Sec。 371日期：1998年7月17日 102（e）日期1998年7月17日PCT 1997年1月15日PCT PCT。 公开号WO97 / 26558 日期1997年7月24日在粗糙海面条件下控制多元素海洋地震脉冲发生源的操作的方法和装置。 该方法首先确定元素在源的每个元素被激活之前的时间点沿其行进的路径的形状。 一旦路径的形状已知，则确定每个元件相对于固定基准的相对垂直位置。 然后可以将调整进入每个元件的烧制时间，使得主压力峰值相互干扰。 在优选实施例中，与悬挂装置的线束相关联的多个倾斜仪提供倾斜角度测量，可以从该角度测量路径的形状并相应地调整点火时间。