数字全景钻孔摄像系统在西沙琛航岛地质调查中的应用

在西沙琛航岛的地质调查中,数字全景钻孔摄像系统被应用到CK1孔和CK2孔的勘测中,获得了大量珊瑚礁地质的第一手资料,它不仅指导了现场的钻探工作,而且在后期的分析研究中,钻孔图像能够反映珊瑚礁的孔壁特征,并能够根据孔壁特征划分珊瑚礁的特殊区域,在与其他资料的对比中,发现勘测结果基本保持一致.从中可以得出的结论为:数字全景钻孔摄像系统在岛礁钻探过程中能够发挥重要作用;数字全景钻孔摄像系统能够准确有效地勘测出珊瑚礁的钻孔内地质特征;数字全景钻孔摄像系统能够划分珊瑚礁地层的特殊区域.

Application of Digital Borehole Panoramic Camera System to Chenhang Island Geological Investigation

The digital borehole camera system has important significance in geological survey of coral reef. The digital borehole camera system was applied to the CK1 and CK2 holes in the geological survey of Chen- hang Island Paracel Islands, not only guiding the drilling work, and getting a lot of coral reef geology data. The special phenomena of coral reef hole wall rock, such as cracks, holes, voids, interface, interlayer and color difference, are carefully analyzed and researched. The survey results are consistent with the coring rate and solid core via comparison. Through the application to Chenhang island geological survey, it is shown that the digital borehole camera system has achieved important results, from which to draw conclusions as fol- lows： digital borehole camera system can play an important role in the drilling process; digital borehole cam- era system can accurately survey the geological characteristics of coral reefs~ digital borehole camera system can divide the special regions of coral reefs.