Simple component vertical combined type seaquake acquisition system
An acquisition system and single-component technology, applied in the field of marine seismic observation and marine exploration, can solve the problems of limited number and spacing of acquisition nodes, easy damage of cables, etc., and achieve the effects of strong pressure resistance, good sealing performance and high tensile strength
Inactive Publication Date: 2015-05-13
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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Limited number and spacing of collection nodes and risk of cable damage
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] In the present invention, the single-component vertically combined submarine seismic acquisition system includes a single-component seismic acquisition node, a floating ball, a releaser, and an anchor system; multiple single-component seismic acquisition nodes are connected in series on the top of the releaser through a rope On the hook, the other end is tied with a floating ball, and the whole system works in seawater in a vertical floatin...
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A simple component vertical combined type seaquake acquisition system comprises simple component vertical seaquake acquisition nodes, floating balls, a releaser and an anchor system. A plurality of the simple component vertical seaquake acquisition nodes is fixedly connected on a hook at the top end of the releaser in series through a rope. The other end of the rope is connected with floating balls. The whole subsurface buoy system works in the sea in a floating state. Outer shells of the simple component vertical seaquake acquisition nodes are adopted titanium alloy materials and withstanding pressure is larger than 2000m of water depth. Water listening meters are fixedly installed on the tops of the outer shells. A digital collector and a combined power resource are installed in each of outer shells. The digital collector is provided with a three-component accelerometer which can be used to carry out correction process to collected data. Due to the fact that an independent data acquisition system is adopted on the simple component vertical combined type seaquake acquisition system, a plurality of simple component vertical combined type seaquake acquisition nodes are achieved series connection through the rope, and simple component vertical combined type seaquake acquisition system is formed.
Description
technical field [0001] The present invention relates to the field of marine exploration in geophysical survey, specifically to the technical field of marine seismic observation and underwater acoustic propagation technology, and in particular to a single-component vertical combined seabed seismic acquisition system. Background technique [0002] The Institute of Geology and Geophysics of the Chinese Academy of Sciences is the main unit for the development of submarine seismometers in my country, and has undertaken most of the development tasks of submarine seismometers in China. In April 2009, using our self-developed broadband submarine seismograph, my country recorded natural seismic data in the deep water area (4300 meters) for the first time. [0003] With the development of oil and gas exploration to deep water and ocean residual basins and the demand for exploration and research on natural gas hydrate, the requirements for the performance indicators of submarine digita...
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IPC IPC(8): G01V1/22
Inventor 游庆瑜郝天珧赵春蕾黄松徐亚胡忠义
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI