公开(公告)号：US5668775A

公开(公告)日：1997-09-16

申请号：US492010

申请日：1995-09-11

Applicant: Kjell Hatteland

Inventor： Kjell Hatteland

IPC: G01S5/26 ,  G01V1/38

CPC classification number: G01V1/3835 ,  G01S5/26

Abstract: A method for determining the position of seismic equipment wherein acoustic transmitters transmit spread spectrum sequences which are received by the seismic sensors in the equipment whose position has to be determined. By collecting and processing the signals thus produced, it is possible to determine the position of seismic equipment with reference to each individual sensor in the seismic equipment each time a measurement is take. The already existing conventional seismic sensors which are provided in a streamer are used to record the transmitted spread spectrum signals. By calculating time differences between the sensors' reception of a spread spectrum signal it is possible to calculate the position of the seismic equipment.

Abstract translation: PCT No.PCT / NO94 / 00186 Sec。 371 1995年9月11日第 102（e）1995年9月11日PCT PCT 1994年11月18日PCT公布。 公开号WO95 / 14246 日期1995年5月26日一种用于确定地震设备的位置的方法，其中声发射器发射地震传感器在其位置必须确定的设备中接收的扩频序列。 通过收集和处理如此产生的信号，可以在每次进行测量时参考地震设备中的每个单独传感器来确定地震设备的位置。 已经存在的传统地震传感器被提供在拖缆中用于记录所传送的扩频信号。 通过计算传感器接收扩频信号之间的时间差，可以计算地震设备的位置。

公开(公告)号：US5164922A

公开(公告)日：1992-11-17

申请号：US776209

申请日：1991-10-15

Applicant: Hans Cappelen ,  Oyvind Sorbotten ,  Odd O. Vatne

Inventor： Hans Cappelen ,  Oyvind Sorbotten ,  Odd O. Vatne

IPC: B63B22/00 ,  B63B22/18 ,  G01V1/38

CPC classification number: B63B22/00 ,  B63B22/18 ,  G01V1/38 ,  B63B2211/02

Abstract: In seismic surveys at sea, with seismic devices, especially sources of seismic energy being towed behind a vessel and kept at a mutual configuration relative to each other, and with the devices being suspended from a buoyancy member (1) mechanical structure of the equipment permits undesirable forces which influence the sources of seismic energy (3), especially during firing, to be absorbed. Mutually arranged flexible, resilient members (4) are provided between the suspension line of the seismic devices (3) and the seismic devices (3) and/or between the seismic devices. Seismic devices are supported on two or more rigid fastening members (5) and flexible resilient members (4) extend between the fastening members and the suspension line. The flexible resilient members (4) preferably extend in a curved path between the fastening members (5) and the members together form an integrated unit.

Abstract translation: 在海上的地震勘测中，具有地震装置，特别是地震能量源被牵引在船舶后面并保持彼此相互配置，并且装置悬挂在浮力构件上（1）设备的机械结构允许 影响地震能源（3），特别是在射击期间被吸收的不期望的力量。 相互布置的柔性弹性构件（4）设置在地震装置（3）的悬挂线和地震装置（3）之间和/或地震装置之间。 地震装置支撑在两个或更多个刚性紧固构件（5）上，并且柔性弹性构件（4）在紧固构件和悬挂线之间延伸。 柔性弹性构件（4）优选地在紧固构件（5）之间的弯曲路径中延伸并且构件一起形成集成单元。

公开(公告)号：US5148406A

公开(公告)日：1992-09-15

申请号：US528213

申请日：1990-05-25

Applicant: Munday Brink ,  Jan Gateman

Inventor： Munday Brink ,  Jan Gateman

IPC: G01V1/28 ,  G01V1/38

CPC classification number: G01V1/3808 ,  G01V1/28 ,  G01V2210/20

Abstract: A method for simultaneous collection of seismic data of shallow and deep targets, in which two seismic streamers are towed at different water depths (1 and 2 in FIG. 2), and only one acoustic source of seismic signals is used. The seismic data recorded by the different streamers are mixed in a subsequent processing step, seismic data being weighted before being mixed by a weight which is made dependent on the recorded two-way travel time for the respective streamers, so that data from one or several streamers located at the least water depth receive a weight which decreases with travel time, whereas data from a corresponding number of streamers of greater depths receive a weight which increases with travel time.

Abstract translation: 一种用于同时收集浅层和深层目标的地震数据的方法，其中两个地震拖缆在不同的水深（图2中的1和2）中被拖曳，并且仅使用一个声源的地震信号。 由不同拖缆记录的地震数据在随后的处理步骤中混合，地震数据在被混合之前被加权，权重取决于相应拖缆的记录双向旅行时间，从而来自一个或几个 位于最小水深处的拖缆接收随着行驶时间而减小的重量，而来自较大深度的拖缆的相应数量的数据接收到随旅行时间而增加的重量。

公开(公告)号：US5051966A

公开(公告)日：1991-09-24

申请号：US435330

申请日：1989-11-13

Applicant: Einar Gjestrum ,  Lars Knudsen ,  Tormod Skifjeld

Inventor： Einar Gjestrum ,  Lars Knudsen ,  Tormod Skifjeld

IPC: B63G8/42 ,  G01V1/02

CPC classification number: G01V1/006 ,  B63G8/42

Abstract: A fastening device for fixing seismic circular devices is designed with a rigid, split, annular clamp (4) with an open void facing the seismic device (1) for insertion of at least one shock absorbing member (7) in the void. Such a clamp (4) is provided in the region of the device which is most subjected to strain, where a concentric securing ring (8) is also mounted, about which the clamp is fitted with a shock absorbing member (7) on each side of the ring. One more such clamp is provided on the seismic device (1) in order to distribute the load. This arrangement is especially suitable for use in connection with seismic airguns which are to be fixed at predetermined mutual distances in a frame structure (2).

公开(公告)号：US4884249A

公开(公告)日：1989-11-28

申请号：US220675

申请日：1988-07-18

Applicant: Clive T. Snook

Inventor： Clive T. Snook

IPC: G01V1/20

CPC classification number: G01V1/201

Abstract: In order to avoid noise and error-sources a marine streamer (3) for use in seismic exploration is provided with a buoyancy member (8) which is snake-shaped or tubular-shaped and slightly flexible and supports the active member (9) of the streamer by the aid of narrow suspension ropes (10). The streamer may be made adjustable as regards its height and it may be dividable into sections.

Abstract translation: 为了避免噪声和误差源，用于地震勘探的海洋拖缆（3）设置有蛇形或管状的柔性构件（8），并且稍微柔性并支撑活动构件（9） 借助于窄悬挂绳索（10）的拖缆。 飘带可以根据其高度调节，并且可以分成多个部分。