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P-Cable High-Resolution Seismic

机译：P电缆高分辨率地震

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摘要

P-Cable technology was developed to acquire detailed three-dimensional images of the subsurface in a cost-efficient way. The system was improved and used in the HERMES project to image cold seep sites and slide areas in the Gulf of Cadiz and the Mediterranean and Barents seas. The P-Cable system consists of 12 to 24 very short streamers that are towed on a cross-cable that runs perpendicular to the ship's steaming direction. This configuration allows a number of seismic profiles to be acquired simultaneously in a cost-efficient way. The current P-Cable record is 24 simultaneously collected lines. A three-dimensional subsurface image can be obtained by collecting a number of parallel sail lines in the region of interest. Conventional three-dimensional seismic technology relies on very long streamers (commonly, several streamers up to10-km long), large sources, and costly operations. In contrast, the P-Cable system is lightweight and can be deployed quickly from small vessels. Only a small source is required as the system is optimized for relatively shallow imaging, typically down to subbottom depths similar to the water depth.
机译：开发了P电缆技术，以经济高效的方式获取地下的详细三维图像。对该系统进行了改进，并在HERMES项目中用于对加的斯湾，地中海和巴伦支海的冷渗漏部位和滑坡区域进行成像。 P电缆系统由12到24个非常短的拖缆组成，这些拖缆被拖在垂直于船的蒸汽方向延伸的交叉电缆上。这种配置允许以经济高效的方式同时获取多个地震剖面。当前的P电缆记录是24个同时收集的行。通过收集感兴趣区域中的许多平行帆线，可以获得三维地下图像。传统的三维地震技术依赖于很长的拖缆（通常，几根拖缆长达10公里），大震源和昂贵的作业。相反，P电缆系统重量轻，可以从小型船只快速部署。由于该系统针对相对较浅的成像进行了优化，因此通常只需要一个较小的光源即可，成像深度通常可降至与水深相似的底下深度。

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