发明名称 |
SENSOR DATA COMPRESSION FOR DOWNHOLE TELEMETRY APPLICATIONS |
摘要 |
A system having a downhole sensor device and a compression device to obtain a sparse representation of data in downhole telemetry applications is described. The downhole sensor device can collect sensor data while the downhole sensor device is within a borehole. The compression device is coupled to the downhole sensor device and configured to receive the sensor data. The compression device can determine a wavelet coefficient vector for at least one row of n-tuple vectors. The wavelet coefficient vector can have a sparse representation of one or more nonzero elements. The compression device can process the wavelet coefficient vector through a set of compression algorithms, and determine a minimal bit cost of the processed wavelet coefficient vector. The compression device can select a compression algorithm from the set of compression algorithms corresponding to the minimal bit cost. The compression device can generate compressed data based on the selected compression algorithm. |
申请公布号 |
WO2017019030(A1) |
申请公布日期 |
2017.02.02 |
申请号 |
WO2015US42416 |
申请日期 |
2015.07.28 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
GAO, Chris;MARSH, Laban M.;RODNEY, Paul F. |
分类号 |
E21B47/12;E21B49/00;H03M7/30 |
主分类号 |
E21B47/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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