| 声波测井井下数据压缩算法压缩效果测试 |
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| 引用本文： | 贾安学,乔文孝,鞠晓东,车小花,陆蓉,王瑞甲.声波测井井下数据压缩算法压缩效果测试[J].测井技术,2011,35(3):288-291. |
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| 作者姓名： | 贾安学 乔文孝 鞠晓东 车小花 陆蓉 王瑞甲 |
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| 作者单位： | 中国石油大学油气资源与探测国家重点实验室，北京102249;北京市地球探测与信息技术重点实验室，北京102249 |
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| 基金项目： | 国家自然科学基金面上项目，国家科技重大专项 |
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| 摘 要： | 由于电缆传输带宽有限,大量声波测井全波列数据从井下传送至井上存储和处理时井孔信息丢失,因此需要采用数据压缩技术在井下对声波数据进行实时压缩.介绍了算术编码、预测编码、FLAC(Free Lossless AudioCodec)和APE等无损压缩算法和有损压缩算法,并将无损压缩算法应用于正交多极子声波测井仪MPAL专家模...
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| 关 键 词： | 声波测井 数据压缩 算术编码 预测编码 无损音频压缩解码(FLAC) APE 压缩率 |
Effect Test on Compression Algorithms of Acoustic Logging Downhole Data |
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| JIA Anxu,QIAO Wenxiao,JU Xiaodong,CHE Xiaohua,LU Rong,WANG Ruijia.Effect Test on Compression Algorithms of Acoustic Logging Downhole Data[J].Well Logging Technology,2011,35(3):288-291. |
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| Authors: | JIA Anxu QIAO Wenxiao JU Xiaodong CHE Xiaohua LU Rong WANG Ruijia |
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| Affiliation: | JIA Anxue1,2,QIAO Wenxiao1,JU Xiaodong1,CHE Xiaohua1,LU Rong1,WANG Ruijia1,2(1.State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum,Beijing 102249,China,2.Earth Explorer and Information Technology Laboratory,China) |
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| Abstract: | Due to limitations of cable bandwidth,when a large number of acoustic logging data are transported to the ground from the downhole for storage and process,well information is often lost,so,acoustic log data need to be compressed in real-time in the downhole by data compression technology.Introduced are lossless compression algorithms,such as,arithmetic coding,predictive coding,free lossless audio codec(FLAC) and APE,and lossy compression algorithm.The lossless compression algorithms are used to the downhole... |
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| Keywords: | acoustic logging data compression arithmetic coding predictive coding free lossless audio codec(FLAC) APE compression ratio |
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