Slurry negative pulse data download coding method for well drilling
An encoding method and negative pulse technology, applied in construction and other directions, can solve the problems of not conforming to the actual situation of drilling, low transmission rate, increased drilling time and economic burden, etc., saving data download time, high encoding utilization rate, and improving parameters The effect of downlink efficiency
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[0012] The present invention will be described in detail below with reference to the drawings and embodiments:
[0013] The coding method is composed of coding method and decoding method. The encoding method encodes the instructions and parameters that need to be downloaded, specifies the meaning of each data bit, classifies the instructions that need to be downloaded, determines the instruction type and the parameter size attached to each instruction, and encodes the data according to the type and data size. Parameters with a wide range of values, make full use of the existing information of the downhole equipment, and change the parameters of the downhole equipment by keeping and fine-tuning coding; clarify the meaning of each data bit and arrange the parameters in a certain order; decoding methods include parameter collection, Judge and analyze the instructions and parameters. The equipment parameter changes (such as power supply voltage) caused by the mud flow changes of the ...
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