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Self-landing and ascending OBS: opportunity for commercial seismics in the ultra deep sea

机译:自动着陆和上升OBS:超深海商业地震的机会

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摘要

Offshore seismic exploration focuses more and more on water depths below 1000 m Nowadays, tenders for seismic surveys down to 3000 m water depths are on the increase. As the water gets deeper, so the resolution of measurements made by surface streamer tends to decrease.T o obtain enhanced resolution and an indication of the fluid content of a hydrocarbon reservoir, the acquisition of shear waves is becoming of interest. This requires the data to be acquired on the seabed. To date, such surveys have predominantly been conducted using OBCs (ocean bottom cables).
机译:近海地震勘探越来越关注于1000 m以下的水深。如今,越来越少的用于3000 m以下水深的地震勘探的标书正在增加。随着水的加深,地表拖缆的测量分辨率趋于降低。为了获得更高的分辨率并显示出碳氢化合物储层的流体含量,切变波的采集变得越来越重要。这要求在海床上采集数据。迄今为止,此类调查主要是使用OBC(海洋底部电缆)进行的。

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