Automatic control well killing simulation experiment method, device and equipment

• Main Authors: ZHANG GENG, LI JUN, ZHANG HUI, LIAN WEI, AN JINTAO, LONG ZHENYU, YANG HONGWEI
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2024
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention provides an automatic control well killing simulation experiment method, device and equipment, and relates to the technical field of well control. In the automatic pressure control mode, a current signal for adjusting the opening degree of a throttle valve is determined based on target pressure input by a user and collected wellbore pressure in a well killing simulation device. And then the current signal is used as the input of the hydraulic control box to control the opening degree of the throttle valve, so that the shaft pressure in the well killing simulation device reaches the target pressure, and the purpose of automatically controlling well killing is achieved. In the technical scheme, the automatic control device in the automatic control well killing simulation experiment device can determine the current signal for adjusting the opening degree of the throttle valve based on the real-time shaft pressure and the target pressure, so that the stability, the accuracy and the anti-interference