| 井下电视成像技术研究 |
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| 引用本文： | 张家田,李慧玲.井下电视成像技术研究[J].石油仪器,2005,19(5):11-12. |
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| 作者姓名： | 张家田 李慧玲 |
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| 作者单位： | [1]西安石油大学电子工程学院,陕西西安 [2]兰州工业高等专科学校,甘肃兰州 |
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| 摘 要： | 随着测井技术的不断进步，井下电视成像测井技术也取得突飞猛进的发展。文章介绍了一种新的井下电视成像技术--基于数字视频体制的井下电视实时成像测井技术。由摄像头拍摄的井下图像经模数转换、压缩处理、由3000 m普通测井电缆传输到地面，在地面经解压、视频转换后显示或存储。该系统的数字传输采用相位连续的FSK调制，传输速率达到1MB/s，是目前最高的传输速率。地面采用软解调技术实现数据解调。
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| 关 键 词： | 井下电视 图像压缩 制式合成 成像系统 |
| 文章编号： | 1004-9134（2005）05-0011-02 |
| 收稿时间： | 2005-06-24 |
| 修稿时间： | 2005-06-24 |
Study on the downhole video image technology |
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| Zhang Jiatian and Li Huiling..Study on the downhole video image technology[J].Petroleum Instruments,2005,19(5):11-12. |
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| Authors: | Zhang Jiatian and Li Huiling |
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| Affiliation: | Zhang Jiatian and Li Huiling. |
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| Abstract: | With the development of down hole logging technology,the technology of downhole video logging has been greatly improved.This paper describes a new technology of downhole video: the real-time imaging of downhole video based on digital video.The downhole picture captured by camera is encoded and translated to the ground through 3000m general logging cable.After that,it is decoded and displayed or stored.FSK modulate is used in digital transmission in this system.The transmission speed reaches to 1MB/s,which is the fastest at present.Soft demodulate technology is adopted in the ground system to realize data demodulation. |
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| Keywords: | downhole video video image processing compose of digital multi-standard imaging system[KH*5/8D] |
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