The reserves of deep oil and gas resources are huge, making them significant for global oil
and gas development. As the drilling depth goes towards to deep (> 4500 m) and ultra-deep
(> 6000 m) formations, the geological conditions becomes more complex, the transmission
rate of drilling mud signal is limited. The delay in the downhole logging while drilling data
transmission would increase the risks of drilling accidents and drilling out of the reservoir.
The current drilling site decision-making method is not applicable, and the downhole …