渤海海域浅层气分布及地震特征分析
发布时间：2019-07-23 19:02
【摘要】：海底浅层气严重影响海底地层的结构稳定性,因此成为近海海洋工程的重要安全因素。近年来,通过地震手段在渤海海域发现了多处疑似浅层气区域。该区域中的浅层气蕴藏在海底以下地层或通过断层从地层溢出到海水中。本文在渤海海域高分辨率地震勘探等物探调查资料基础上,分析了渤海海域浅层气地震反射特征。通过查阅相关资料,总结渤海海域浅层气的一般成因。在将已发现的渤海海域浅层气分布区域进行总结并绘制分布图的同时,结合了渤海地质演化以及沉积历史,推测了渤海浅层气集中分布区域的成因。最后讨论了浅层气对近海海洋工程的严重危害。本文所研究的渤海海域海底浅层气分布情况可以为渤海海域海洋工程建设提供重要参考。
[Abstract]:Shallow gas seriously affects the structural stability of seafloor strata, so it has become an important safety factor in offshore marine engineering. In recent years, many suspected shallow gas areas have been found in the Bohai Sea by seismic means. The shallow gas in this area is contained in the strata below the sea floor or spilled from the strata to sea water through faults. Based on the geophysical survey data of high resolution seismic exploration in Bohai Sea, the seismic reflection characteristics of shallow gas in Bohai Sea are analyzed in this paper. By consulting the relevant data, the general origin of shallow gas in Bohai Sea is summarized. While summing up and mapping the distribution area of shallow gas in Bohai Sea, combined with the geological evolution and sedimentary history of Bohai Sea, the Genesis of the concentrated distribution area of shallow gas in Bohai Sea is deduced. Finally, the serious harm of shallow gas to offshore marine engineering is discussed. The shallow gas distribution in the Bohai Sea area studied in this paper can provide an important reference for the marine engineering construction in the Bohai Sea area.
【作者单位】： 中国海洋大学海底科学与探测技术教育部重点实验室;中国海洋大学海洋地球科学学院;
【基金】：国家自然科学基金项目(41304096;41230318) 教育部博士点基金项目(20130132120014) 国家高级技术研究发展计划项目(2013AA092501)资助~~
【分类号】：P741;P75
[Abstract]:Shallow gas seriously affects the structural stability of seafloor strata, so it has become an important safety factor in offshore marine engineering. In recent years, many suspected shallow gas areas have been found in the Bohai Sea by seismic means. The shallow gas in this area is contained in the strata below the sea floor or spilled from the strata to sea water through faults. Based on the geophysical survey data of high resolution seismic exploration in Bohai Sea, the seismic reflection characteristics of shallow gas in Bohai Sea are analyzed in this paper. By consulting the relevant data, the general origin of shallow gas in Bohai Sea is summarized. While summing up and mapping the distribution area of shallow gas in Bohai Sea, combined with the geological evolution and sedimentary history of Bohai Sea, the Genesis of the concentrated distribution area of shallow gas in Bohai Sea is deduced. Finally, the serious harm of shallow gas to offshore marine engineering is discussed. The shallow gas distribution in the Bohai Sea area studied in this paper can provide an important reference for the marine engineering construction in the Bohai Sea area.
【作者单位】： 中国海洋大学海底科学与探测技术教育部重点实验室;中国海洋大学海洋地球科学学院;
【基金】：国家自然科学基金项目(41304096;41230318) 教育部博士点基金项目(20130132120014) 国家高级技术研究发展计划项目(2013AA092501)资助~~
【分类号】：P741;P75
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