Deep well power supply and data transmission method and system based on single-core cable

• Main Authors: GAO SHANGHUA, WANG XIAOLEI, XUE BING, ZHANG BING, TAN CHUAN SENG, CUI RENSHENG, WU XU, LIN ZHAN, CHEN YANG, NIU LINGHUI, ZHU XIAOYI, LI JIANG, LIU MINGHUI, ZHOU YINXING
• Format: Patent
• Language: Chinese; English
• Published: 03.11.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; ELECTRICITY; FIXED CONSTRUCTIONS; GENERATION; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; SYSTEMS FOR STORING ELECTRIC ENERGY

The embodiment of the invention provides a deep well power supply and data transmission method and system based on a single-core cable, ground equipment is connected with underground equipment through the single-core cable, and the method comprises the steps that the ground equipment modulates a direct-current power supply signal at a first frequency point and transmits the direct-current power supply signal to the underground equipment through the single-core cable; the ground equipment modulates time service and control signals at a second frequency point and transmits the time service and control signals to the underground equipment through the single-core cable, and the underground equipment modulates control parameters of the observation instrument at the second frequency point and transmits the control parameters to the ground equipment through the single-core cable; the underground equipment modulates observation data of the observation instrument in a third frequency band and transmits the observation