公开(公告)号：US5212668A

公开(公告)日：1993-05-18

申请号：US772417

申请日：1991-10-07

申请人： Morten Svendsen

发明人： Morten Svendsen

IPC分类号： G01V1/36

CPC分类号： G01V1/364 ,  G01V2210/324

摘要： 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.

摘要翻译： 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

申请人： Rolf Bjerkoy

发明人： Rolf Bjerkoy

IPC分类号： G01V1/38

CPC分类号： G01V1/3808

摘要： 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.

摘要翻译： 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：US6026056A

公开(公告)日：2000-02-15

申请号：US101815

申请日：1998-07-17

申请人： Nils Lunde ,  Leon John Walker

发明人： Nils Lunde ,  Leon John Walker

IPC分类号： G01V1/02

CPC分类号： G01V1/006

摘要： 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.

摘要翻译： 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。

公开(公告)号：US5771202A

公开(公告)日：1998-06-23

申请号：US952827

申请日：1993-06-30

申请人： Richard Bale ,  Ian McMillan

发明人： Richard Bale ,  Ian McMillan

IPC分类号： G01V20060101 ,  G01V1/20 ,  G01V1/38

CPC分类号： G01V1/3808

摘要： A method for acquisition of seismic data from an area surveyed using a group of seismic energy sources and a group of seismic streamer cables, particularly a marine area, includes forming a first group A from at least two elements of either seismic energy sources S or seismic streamer cables C having a spacing X between said elements, forming a second group B from at least two of the other elements of sources S or cables C than that forming group (A), spacing the elements in group B a distance equal to X multiplied by the number of elements in group A, forming a group C from at least two subgroups each consisting of a group A, spacing said subgroups in group C in distance equal to the distance between two elements in group B multiplied by the number of elements in group B, the spacing between two adjacent subgroups being equal to the lateral distance between midpoints between the subgroups, and forming further groups as desired D, E, F etc., by combining at least two subgroups of group B, C, D, respectively, etc., each further group having a lateral spacing between the midpoints between two adjacent subgroups equal to the lateral distance between the midpoints between two adjacent subgroups in group C, D, E, respectively, etc., multiplied by the number of subgroups in groups C, D, E, respectively, etc.

摘要翻译： PCT No.PCT / NO91 / 00071 Sec。 371日期：1993年6月30日 102（e）日期1993年6月30日PCT 1991年5月16日提交PCT公布。 公开号WO91 / 18302 日期1991年11月28日一种从使用一组地震能源和一组地震拖缆电缆，特别是海洋区域测量的地区获取地震数据的方法包括从地震的至少两个要素形成第一组A 能量源S或地震拖缆C在所述元件之间具有间隔X，从形成组（A）的源S或电缆C的其它元件中的至少两个元件形成第二组B，将组B中的元件 距离等于X乘以组A中的元素数量，从至少两个由A组组成的子组形成组C，将组C中的所述子组间距离等于组B中的两个元素之间的距离乘以 组B中的元素的数量，两个相邻子组之间的间隔等于子组之间的中间点之间的横向距离，并且通过组合至少两个组合形成另外的组D，E，F等等 B组，C组，D组的分组等等，每个另外的组在两个相邻子组之间的中点之间具有等于组C，D，E中的两个相邻亚组之间的中点之间的横向距离之间的横向间隔， 分别乘以组C，D，E中的子组数等。

公开(公告)号：US5548562A

公开(公告)日：1996-08-20

申请号：US58204

申请日：1993-05-10

申请人： Per Helgerud ,  Helge Bragstad

发明人： Per Helgerud ,  Helge Bragstad

IPC分类号： G01S1/00 ,  G01V1/26 ,  G01V1/38

CPC分类号： G01V1/26 ,  G01S19/14

摘要： A method for the synchronization of systems for seismic surveys, wherein the systems are composed of subsystems and may be land-based or marine, consists in the survey system being supplied with an absolute time standard and in a time code based on the absolute time standard being generated in the survey system. There is further provided at least one programmable event generator in the survey system and this is synchronized with the absolute time standard. The time for a specific event is predetermined on the basis of given parameters and supplied with the time code which corresponds to this time. The time for a determined event is then supplied to the subsystems which are also provided with the absolute time standard. The event can thereby be executed in one or more of the subsystems on the basis of the supplied absolute time standard and a synchronization is obtained with the desired accuracy. The method can further be used for synchronizing shot times in a seismic signal generating system, and synchronizing the shot recording time and sampling times in a seismic data recording system. The method can also be used for determining the exact time of actually occurring events in a system for seismic surveys.

摘要翻译： 一种用于地震勘测系统同步的方法，其中系统由子系统组成，并且可以是陆基或海洋，包括在被提供绝对时间标准的测量系统中，并且基于绝对时间标准的时间码 在调查系统中产生。 还在调查系统中提供至少一个可编程事件发生器，并与绝对时间标准同步。 特定事件的时间是基于给定参数预先确定的，并提供与此时间对应的时间码。 然后将确定的事件的时间提供给也具有绝对时间标准的子系统。 因此，可以基于所提供的绝对时间标准在一个或多个子系统中执行该事件，并且以期望的精度获得同步。 该方法还可以用于在地震信号发生系统中同步拍摄时间，并且在地震数据记录系统中同步拍摄记录时间和采样时间。 该方法还可用于确定地震勘测系统中实际发生事件的确切时间。

公开(公告)号：US5475188A

公开(公告)日：1995-12-12

申请号：US204184

申请日：1994-03-04

申请人： Hans Cappelen ,  Tor Elholm ,  Odd O. Vatne ,  Ayvind Sarbotten

发明人： Hans Cappelen ,  Tor Elholm ,  Odd O. Vatne ,  Ayvind Sarbotten

IPC分类号： G01V1/38 ,  G01V1/04

CPC分类号： G01V1/38

摘要： A device for securing two or more seismic energy sources at fixed relative positions during firing of the sources consists of a rigid framework comprising end frames and intermediate bars. In order to provide an extremely light but at the same time completely rigid framework, the seismic energy sources are used as longitudinal bars between the end elements.

摘要翻译： PCT No.PCT / NO92 / 00137 Sec。 371日期1994年3月4日 102（e）1994年3月4日PCT PCT 1992年9月1日PCT公布。 出版物WO93 / 05410 日期：1993年3月18日。一种用于在发射源期间将两个或更多个地震能量源固定在固定的相对位置的装置包括由框架和中间杆组成的刚性框架。 为了提供非常轻的但同时完全刚性的框架，地震能量源被用作端部元件之间的纵向条。

公开(公告)号：US5357892A

公开(公告)日：1994-10-25

申请号：US35365

申请日：1993-03-22

申请人： Odd O. Vatne ,  Hans Cappelen ,  Oyvind Sorbotten ,  Tor Elholm ,  Gunnar Lindemann

发明人： Odd O. Vatne ,  Hans Cappelen ,  Oyvind Sorbotten ,  Tor Elholm ,  Gunnar Lindemann

IPC分类号： A01K73/045 ,  B63B21/66 ,  G01V1/38

CPC分类号： G01V1/3826 ,  A01K73/045 ,  B63B21/66

摘要： A deflector (2) for installation in the tow-line (4, 5) between a towing vessel and a tow which is located in the water, e.g. a cable with seismic sources or a seismic source array, is suspended by a float (1) and has a fitting (9) therefrom having a tow-point (7) near the front part of the deflector connected to the tow-line (4), and an attachment point (8) to the rear of the deflector for further connection thereto of the rear part of the tow-line connected to the two. In order to be able to locate the deflector in a desired position in relation to the towing vessel and compensate for alternations in the effects of forces from the tow or vessel in addition to movements in the water, the tow-line (5) which leads on to the actual tow from the deflector body (2) is attached (8) to the deflector via a pivotable lever (10) which is situated at the same height as the lifting force center of the deflector body. The tow-point (7) for the tow-line (4 ) is provided at one lateral surface of the deflector body (2) in front of the vertical center line thereof. An additional deflector wing (18) may be incorporated in the rear part (5) of the tow-line.

摘要翻译： 用于安装在牵引容器和位于水中的丝束之间的拖曳线（4,5）中的偏转器（2），例如。 具有地震源或地震源阵列的电缆由浮子（1）悬挂，并具有一个配件（9），在该导向器的前部附近具有连接到牵引线（4）的接头（7） ）和连接到导流板后部的附接点（8），用于进一步连接到与两者连接的拖绳的后部。 为了能够将偏转器相对于牵引容器定位在期望的位置，并且除了水中的运动之外还补偿来自丝束或容器的力的变化的变化，引导线（5）引导 通过位于与偏转器主体的提升力中心相同的高度的可枢转杠杆（10）将来自偏转器主体（2）的实际的丝束附接（8）到偏转器。 牵引线（4）的牵引点（7）设置在偏转体（2）的垂直中心线的前侧的一个侧面。 另外的导流翼（18）可以结合在牵引线的后部（5）中。

公开(公告)号：US5228005A

公开(公告)日：1993-07-13

申请号：US863984

申请日：1992-04-06

申请人： Cato Bjelland

发明人： Cato Bjelland

IPC分类号： B63G8/39 ,  G01V1/20

CPC分类号： G01V1/208 ,  B63G8/39 ,  D07B5/006

摘要： Seismic streamers (detection cables) used in the reception of reflection signals during seismic surveys at sea, where the streamer is towed behind a vessel, are constructed with an external, tubular cover (1) of a flexible plastic material. In order to reduce the noise produced by movement of the streamer through the water the external cover (1) is constructed with continuous longitudinally extending grooves (3) in its longitudinal direction, and preferably regularly disposed circumferentially around the entire periphery of the cover (1).

摘要翻译： 用于在海上进行地震勘测期间接收反射信号的地震拖缆（检测电缆），其中拖缆被拖在船舶后面，用柔性塑料材料的外部管状盖（1）构成。 为了减少流光通过水的移动产生的噪音，外盖（1）在其纵向方向上构造有连续的纵向延伸的槽（3），并且优选地围绕罩（1）的整个周边周向地周向地设置 ）。

公开(公告)号：US5188053A

公开(公告)日：1993-02-23

申请号：US564067

申请日：1990-08-08

申请人： Einar Gjestrum ,  Oddbjorn Hjelle ,  Oyvind Hogsnes ,  Gunnar F. Valle ,  Oyvind Sorbotten

发明人： Einar Gjestrum ,  Oddbjorn Hjelle ,  Oyvind Hogsnes ,  Gunnar F. Valle ,  Oyvind Sorbotten

IPC分类号： B63B3/08 ,  B63G8/42

CPC分类号： B63B3/08 ,  B63G8/42

摘要： A bouyancy towed body, especially to be used in marine seismic surveys is assembled from a plurality of modules (1, 2, 3, 4) for adaption to various applications. Modules (1-4) may be locked together, e.g. by through rods (6) provided with tensioning screw and nut devices (8). Modules (1-4) are assembled to form a buoyancy member having a homogeneous surface shape. One (3) or a plurality of modules may be provided with elements (5) for attaching desired equipment thereto which may hang down from the towed body.

摘要翻译： 特别是用于海洋地震勘测的bouyancy拖曳机体由多个模块（1,2,3,4）组装，适用于各种应用。 模块（1-4）可以被锁定在一起，例如。 通过设置有张紧螺钉和螺母装置（8）的杆（6）。 模块（1-4）被组装以形成具有均匀表面形状的浮力构件。 一个（3）或多个模块可以设置有用于将期望的设备附接到其上的元件（5），其可以从被拖曳的主体垂下。

公开(公告)号：US5150332A

公开(公告)日：1992-09-22

申请号：US746640

申请日：1991-08-19

申请人： Richard Bale ,  Richard Hale

发明人： Richard Bale ,  Richard Hale

IPC分类号： G01V1/34

CPC分类号： G01V1/34

摘要： A method of assigning seismic traces obtained by means of one or more seismic sources (1) and receivers (2) wherein, a plane containing each source (1) and receivers (2) is divided into a regular array of regions (12-18), for example a rectangular array referred to cartesian coordinates (X-Y). The regions cover at least a middle portion of a line (11) joining each source (1) to each receiver (2). Diagonals (19-25) intersect the line (11) at respective intersection points and offspring traces are allocated to these points.

摘要翻译： 一种分配通过一个或多个地震源（1）和接收器（2）获得的地震迹线的方法，其中，包含每个源（1）和接收器（2）的平面被划分为规则的阵列阵列（12-18 ），例如，涉及笛卡尔坐标（XY）的矩形阵列。 这些区域覆盖将每个源（1）连接到每个接收器（2）的线路（11）的至少中间部分。 对角线（19-25）在相应交点处与线（11）相交，并将后代轨迹分配给这些点。