Innovative semielliptical seismic pattern improving line-change efficiency

详细信息    查看全文

• 作者：Artur Walus ; Lucjan Gucma ; Andrzej Bąk
• 关键词：Marine seismic patterns ; Geophysical maritime seismic research ; The quality of marine geophysical works ; Seismic vessel navigation
• 刊名：Marine Geophysical Research
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：37
• 期：4
• 页码：269-279
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Oceanography; Geophysics/Geodesy; Earth Sciences, general; Offshore Engineering;
• 出版者：Springer Netherlands
• ISSN：1573-0581
• 卷排序：37

文摘

The paper presents a new method for conducting turns by vessels towing seismic cables. A comparison was made between the traditional way of turning to indicate the advantages of the proposed pattern. In order to improve the overview of the complete geometry of a towed streamer system, a model of marine seismic research quality coefficients was applied. The turning method was tested onboard a seismic vessel towing eight streamers of 6 km in length. A significant reduction of time required for line-change was achieved (up to 45 % depending on ocean current speed and direction, speed of the vessel, skills of navigating team). The introduced quality coefficient of geophysical research works is based on the mathematical model of positions deviation of streamers geophones with relation to their idealized position. The model was created to be used while the vessel is on a steady course to improve the quality of acquired data; however, it was found useful during line changes as well.