Formation testing while drilling data compression
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    发明申请
    Formation testing while drilling data compression 有权
    钻井数据压缩时的形成测试

    公开(公告)号:US20030214879A1

    公开(公告)日:2003-11-20

    申请号:US10440952

    申请日:2003-05-19

    IPC分类号: H04H009/00 G01V003/00

    CPC分类号: E21B49/008 G01V11/002

    摘要: A compression scheme for reducing the amount of data that must be transmitted uplink from a formation test while drilling apparatus. Periodic samples are taken within the formation test apparatus and prior to transmitting data uplink, the samples are analyzed to generate curve fit parameters that define a curve that most closely fits the sampled data. A minimal set a data points, time variables, and curve fit parameters are transmitted to the surface where the transmitted data is used to reconstruct the formation pressure test curve. A quality of fit value is also transmitted with the minimal data set as an indication of the quality of the fit between the reconstructed data and the actually sampled data points.

    摘要翻译: 一种压缩方案,用于减少在钻井装置期间从地层测试发送上行链路的数据量。 在地层测试装置内采集周期性样本,并且在传输数据上行链路之前,分析样本以产生曲线拟合参数,其定义与采样数据最接近的曲线。 将数据点,时间变量和曲线拟合参数的最小设置传输到传输数据用于重建地层压力试验曲线的表面。 也以最小数据集作为重构数据与实际采样数据点之间的拟合质量的指示,发送拟合质量值。