Method and device for seismic data acquisition

A technology of seismic data and data, applied in seismology, seismic signal receiver, geophysical measurement, etc., can solve the problems of expensive surface ships, increased accidents and injuries

Active Publication Date: 2007-10-17
MAGSEIS FF LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding a surface vessel is expensive and requires personnel to operate the vessel
Added personnel and ships also increase the potential for accidents and injuries, especially in high seas environments where weather can deteriorate rapidly

Method used

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  • Method and device for seismic data acquisition
  • Method and device for seismic data acquisition
  • Method and device for seismic data acquisition

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Embodiment Construction

[0081] [060] In the detailed description of the present invention, the same reference numerals are used to designate the same components, and various components such as fixing parts, assembly parts, etc. may be omitted for simplicity of description. However, those skilled in the art will understand that such common components can be used as desired.

[0082] [061] Referring to Figure 1, there is shown a seismic data collection system or container 10 of the present invention. The container 10 is constituted by a watertight tank 12 having side walls 14 defining an inner watertight compartment 16 . In the compartment 16 at least a geophone 18 , a clock 20 , a power source 22 , a control mechanism 23 and a seismic data recorder 24 are arranged. In this embodiment, vessel 10 is a self-contained vessel, so power source 22 can meet all of the power needs of vessel 10 . Likewise, the control mechanism 23 can provide all control functions of the container 10, it does not require exte...

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PUM

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Abstract

A marine seismic exploration method and system comprised of continuous recording, self-contained ocean bottom pods characterized by low profile casings. An external bumper is provided to promote ocean bottom coupling and prevent fishing net entrapment. Pods are tethered together with flexible, non-rigid, non-conducting cable used to control pod deployment. Pods are deployed and retrieved from a boat deck configured to have a storage system and a handling system to attach pods to cable on-the-fly. The storage system is a juke box configuration of slots wherein individual pods are randomly stored in the slots to permit data extraction, charging, testing and synchronizing without opening the pods. A pod may include an inertial navigation system to determine ocean floor location and a rubidium clock for timing. The system includes mathematical gimballing. The cable may include shear couplings designed to automatically shear apart if a certain level of cable tension is reached.

Description

technical field [0001] [001] The present invention relates to the field of seismic exploration. More particularly, the present invention relates to methods and apparatus for seismic surveys, and more particularly, the present invention relates to marine seismic surveys utilizing seafloor seismometer systems. Background technique [0002] [002] Seismic exploration generally utilizes seismic energy to generate an acoustic signal that propagates into the soil and is detected by subsurface seismic reflectors (i.e., interfaces between subsurface lithologic or fluid layers, characterized by varying elastic) is partially reflective. Seismic receivers located at or near the Earth's surface detect and record the reflected signal (referred to as a "seismic reflection"), thereby producing a subsurface seismic survey. The recorded signal or seismic energy data can then be processed and information about the lithologic surface formation can be generated to identify such features, eg, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/16
CPCG01V1/16G01V1/184G01V1/3808G01V1/3852G01V2210/1427
Inventor 克利福德·H.·雷格伦·D.·菲斯利尔詹姆斯·N.·汤普森哈尔·B.·海古德
Owner MAGSEIS FF LLC
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