METHOD AND DEVICE TO COMPRESS SEISMIC SIGNAL IN WELL Russian patent published in 2015 - IPC E21B47/95 G01V1/48 

FIELD: instrumentation.

SUBSTANCE: invention relates to measurement facilities in wells in process of drilling, in particular, to facilities for transmission of seismic data in real time. A system is proposed for seismic research in process of drilling, comprising the following components: a drill string comprising at least one seismic sensor and a built-in processor made as capable of digitization of a signal from the seismic sensor for generation of a digital wave signal and processing of a digital wave signal to produce compressed representation of the wave signal for the purposes of storage and transmission. Besides, the compressed wave signal has adjusted sampling frequency and adjusted degree of quantization compared to the digital wave signal. At the same time the adjusted sampling frequency and adjusted degree of quantization are adapted with account of the extent of distortion between the digital wave signal and the compressed representation of the wave signal. Also the method is disclosed for seismic research in process of drilling using the specified system.

EFFECT: increased accuracy and speed of data transmission.

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