US 12,435,624 B2
Method and device for processing fused “underground+ground” data in deep formation exploration
Yuyong Jiao, Wuhan (CN); Xuefeng Yan, Wuhan (CN); Yule Hu, Wuhan (CN); Zengqiang Han, Wuhan (CN); Yiteng Wang, Wuhan (CN); Luyi Shen, Wuhan (CN); Junpeng Zou, Wuhan (CN); Fei Zheng, Wuhan (CN); and Peng Zhang, Wuhan (CN)
Assigned to CHINA UNIVERSITY OF GEOSCIENCES (WUHAN), Wuhan (CN); and Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan (CN)
Filed by CHINA UNIVERSITY OF GEOSCIENCES (WUHAN), Wuhan (CN); and Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan (CN)
Filed on Dec. 28, 2023, as Appl. No. 18/398,188.
Claims priority of application No. 202310845089.0 (CN), filed on Jul. 10, 2023.
Prior Publication US 2025/0020055 A1, Jan. 16, 2025
Int. Cl. E21B 47/12 (2012.01); E21B 47/26 (2012.01)
CPC E21B 47/12 (2013.01) [E21B 47/26 (2020.05)] 6 Claims
OG exemplary drawing
 
1. A method for processing fused underground+ground data in deep formation exploration, comprising steps:
S1, collecting underground multi-source data by using an underground intelligent probing rod, preprocessing the multi-source data to obtain an original digital signal, storing the original digital signal in an underground memory, receiving continuous exploration depth data by using a ground device, and extracting data about a correspondence between an exploration depth and time from the received continuous exploration depth data;
S2, performing high-bitrate and low-bitrate compression on the original digital signal respectively, and modulating the compressed signals into an analog signal to obtain a high-bitrate-compressed and modulated analog signal and a low-bitrate-compressed and modulated analog signal respectively;
S3, driving the high-bitrate-compressed and modulated analog signal by power, such that the high-bitrate-compressed and modulated analog signal is transmitted in a drilling stem with cable in a form of a power line carrier and then output; and driving the low-bitrate-compressed and modulated analog signal by power, such that the low-bitrate-compressed and modulated analog signal is first transmitted in a first section of the drilling stem with cable in the form of the power line carrier, re-collected in a short drill pipe with a repeater, re-emitted to a second section of the drilling stem with cable, and then output after being demodulated;
S4, extracting data about a correspondence between data of the original digital signal and the time stored in the underground memory, synchronizing and fusing the data about the correspondence between the data of the original digital signal and the time, and the data about the correspondence between the exploration depth and the time, and outputting fused data; and
S5, merging the output data in the S3 and the S4 as final output data.