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Offshore earthquake measurement method and system

A technology of seismic sources and control components, applied in the field of completion of marine seismic data acquisition and measurement

Active Publication Date: 2012-09-12
WESTERNGECO SEISMIC HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of these systems depend on or take into account a wide range of input conditions and parameters, including the various purposes and constraints of seismic survey equipment and methods
Again, none of these systems attempt to actively control the spread with a set of coordinated guides deployed throughout the spread area (including both sources and receivers), so complex systems are required

Method used

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  • Offshore earthquake measurement method and system
  • Offshore earthquake measurement method and system
  • Offshore earthquake measurement method and system

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Embodiment Construction

[0079] Figures 1A-1B The diagram illustrates a typical marine seismic data acquisition survey spread (also referred to simply as "the spread") 10 used to conduct a 3D seismic survey. Spread 10 is characterized by a number of components, some of which are controllable, referred to as spread control components. The deployment components typically include one or more marine vessels 11, such as that described in US Patent 6,216,627, and a plurality of components towed by at least one of the vessels. The towed components include cables such as drop cables 20, transverse lines 26, streamers 18, source streamers and pressure lines (both denoted 15) and sources 16 and hydrophones 21 on the streamers, and Steering devices such as deflector 22, streamer diverter 38 and source diverter 17.

[0080] The spread components may further include one or more transport vessels (not shown) not tied to one or more survey vessels, such as the unmanned powered vessels described in US Patent 6,028...

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Abstract

The invention provides an offshore earthquake measurement method and system. The offshore earthquake measurement method provided by the invention controls earthquake measurement distribution in earthquake measurement. A ship, a plurality of distribution control elements, a plurality of navigation nodes, a plurality of earthquake sources, and a receiver are distributed. The offshore earthquake measurement method comprises a step of collecting input data, wherein the input data comprises navigation data of the navigation nodes, operation state data generated with sensors of the distribution control elements, measurement environment data and measurement design data. The positions of the earthquake sources and the receiver are estimated by using the navigation data, the operation state and the environment data. Optimal traces of the earthquake sources and the receiver can be determined by using position estimation and a part of the input data at least comprising the measurement data. A driving order for at least two distribution control elements is calculated by using the determined optimal traces. The method provided by the invention is realized by the system provided by the invention.

Description

[0001] This divisional application is based on the divisional application of the Chinese patent application with the application number 200480042924.2 (international application number is PCT / US2004 / 008029), the application date is March 17, 2004, and the invention title is "Marine Seismic Measurement Method and System" Apply. More specifically, this divisional application is a further divisional application based on the divisional application with the application number 200910166395.1, the filing date is March 17, 2004, and the invention title is "Marine Seismic Measurement Method and System". technical field [0002] This invention relates generally to the completion of marine seismic data acquisition surveys and, more particularly, to the control of seismic survey spreads during surveys. Background technique [0003] Completing a marine seismic data acquisition survey typically involves one or more survey vessels, each towing at least one seismic streamer through a body o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/38
Inventor 肯·维尔克尔比德·泰勒
Owner WESTERNGECO SEISMIC HLDG LTD
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