Control method and system for lifting and heave compensation of drilling machine

• Main Authors: KOU BEIBEI, TANG JUN, TIAN LIEYU, HUANG FANGFEI, SUN MINGYUAN, ZHONG YIXIN, YU YANJIANG, FENG QIZENG, LU QIUPING, XIE WENWEI
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2021
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The invention discloses a control method and system for lifting and heave compensation of a drilling machine. The control system comprises an oil source, an air source, a hydraulic control system, an air pressure control system, a balance system and a lifting system, the hydraulic control system is used for controlling the oil source to supply oil to provide oil pressure for the balance system and the lifting system, the air pressure control system is used for controlling the air source to supply air to provide air pressure for the balance system, and the air pressure control system is matched with the balance system to be used for balancing pressure changes generated by the lifting system. According to the method and the system, tripping lifting and heave compensation drilling are carried out at the same time through one lifting oil cylinder, and extra oil cylinders for compensation on a derrick are reduced. 本发明公开了一种用于钻机举升与升沉补偿的控制方法及系统，控制系统包括油源、气源、液压控制系统、气压控制系统、平衡系统和举升系统，所述液压控制系统用于控制所述油源供油，从而给所述平衡系统和所述举升系统提供